LISA-U2 series 3.75G HSPA / HSPA+ Cellular Modules System Integration Manual Abstract This document describes the features and the system integration of LISA-U2 series HSPA+ cellular modules. These modules are complete and cost efficient 3.75G solutions offering up to six-band HSDPA/HSUPA and quad-band GSM/EGPRS voice and/or data transmission technology in a compact form factor. www.u-blox.
LISA-U2 series - System Integration Manual Document Information Title LISA-U2 series Subtitle 3.75G HSPA / HSPA+ Cellular Modules Document type System Integration Manual Document number UBX-13001118 Revision, date R19 Document status Early Production Information 09-Sep-2015 Document status explanation Objective Specification Document contains target values. Revised and supplementary data will be published later. Advance Information Document contains data based on early testing.
LISA-U2 series - System Integration Manual Preface How to use this Manual The LISA-U2 series System Integration Manual provides the necessary information to successfully design in and configure these u-blox cellular modules. This manual has a modular structure. It is not necessary to read it from the beginning to the end. The following symbols are used to highlight important information within the manual: An index finger points out key information pertaining to module integration and performance.
LISA-U2 series - System Integration Manual Contents Preface ........................................................................................................................................... 3 Contents ........................................................................................................................................ 4 1 System description.................................................................................................................. 7 1.1 Overview .........
LISA-U2 series - System Integration Manual 2 1.15.5 ICASA Certification ................................................................................................................................... 110 1.15.6 KCC Certification ...................................................................................................................................... 111 1.15.7 Anatel Certification .........................................................................................................
LISA-U2 series - System Integration Manual 3.15.2 4 5 Threshold Definitions ................................................................................................................................ 151 3.16 Bearer Independent Protocol ............................................................................................................................. 151 3.17 Multi-Level Precedence and Pre-emption Service ................................................................................
LISA-U2 series - System Integration Manual 1 System description 1.1 Overview LISA-U2 cellular modules integrate full-feature 3G UMTS/HSxPA and 2G GSM/GPRS/EDGE protocol stack with Assisted GPS support. These SMT modules come in the compact LISA form factor, featuring Leadless Chip Carrier (LCC) packaging technology.
LISA-U2 series - System Integration Manual 3G Transmission and Receiving: LISA-U2 modules implement 3G High-Speed Uplink Packet Access (HSUPA) category 6. LISA-U200, LISA-U201, LISA-U260 and LISA-U270 modules implement 3G High Speed Downlink Packet Access (HSDPA) category 8. LISA-U230 modules implement the 3G HSDPA category 14. HSUPA and HSDPA categories determine the maximum speed at which data can be respectively transmitted and received.
LISA-U2 series - System Integration Manual 1.2 Architecture Duplexers & Filters ANT (U)SIM card RF SWITCH DDC (for GNSS) Switch & Multi band & mode PA PA PMU UART RF Transceiver ANT_DIV SPI 26 MHz Filter Bank 32.768 kHz RF SWITCH Wireless Base-band Processor USB GPIO(s) Transceiver PMU Memory Digital audio (I2S) Vcc (supply) V_BCKP (RTC) Power on Power Management Unit External reset V_INT (I/O) Figure 1: LISA-U2 series block diagram (for available options see Table 2) 1.2.
LISA-U2 series - System Integration Manual Power Management Unit with integrated DC/DC converter for the Power Amplifier Module Voltage Controlled Temperature Compensated 26 MHz Crystal Oscillator (VC-TCXO) While operating in 3G mode, the RF transceiver performs direct up-conversion and down-conversion of the baseband I/Q signals, with the RF voltage controlled gain amplifier being used to set the uplink TX power.
LISA-U2 series - System Integration Manual 1.3 Pin-out Table 3 lists the pin-out of the LISA-U2 modules, with pins grouped by function. Function Pin Module No Description Remarks Power VCC All 61, 62, 63 I Module supply input Clean and stable supply is required: low ripple and low voltage drop must be guaranteed. Voltage provided has to be always above the minimum limit of the operating range. Consider that there are large current spikes in connected mode, when a GSM call is enabled.
LISA-U2 series - System Integration Manual Function Pin Module No I/O Description Remarks SPI SPI_MISO All 57 O SPI Data Line Output Module Output: module runs as an SPI slave. Shift data on rising clock edge (CPHA=1). Latch data on falling clock edge (CPHA=1). Idle high. See section 1.9.4 SPI_MOSI All 56 I SPI Data Line Input Module Input: module runs as an SPI slave. Shift data on rising clock edge (CPHA=1). Latch data on falling clock edge (CPHA=1). Idle high.
LISA-U2 series - System Integration Manual Function Pin Module No I/O Description Remarks GPIO GPIO1 All 20 I/O GPIO See section 1.12 GPIO2 All 21 I/O GPIO See section 1.12 GPIO3 All 23 I/O GPIO See section 1.12 GPIO4 All 24 I/O GPIO See section 1.12 GPIO5 All 51 I/O GPIO See section 1.12 GPIO6 All 39 I/O GPIO See section 1.12 GPIO7 All 40 I/O GPIO See section 1.12 GPIO8 All 53 I/O GPIO See section 1.12 GPIO9 All 54 I/O GPIO See section 1.
LISA-U2 series - System Integration Manual Function Pin Module No I/O Description Remarks Digital Audio I2S_CLK All 43 I/O First I2S clock Check device specifications to ensure compatibility to module supported modes. See section 1.11. I2S_RXD All 44 I First I2S receive data Internal active pull-down to GND enabled. Check device specifications to ensure compatibility to module supported modes. See section 1.11.
LISA-U2 series - System Integration Manual 1.4 Operating modes LISA-U2 series modules have several operating modes. The operating modes are defined in Table 4 and described in details in Table 5, providing general guidelines for operation. General Status Operating Mode Definition Power-down Not-Powered Mode Power-Off Mode VCC supply not present or below operating range: module is switched off. VCC supply within operating range and module is switched off.
LISA-U2 series - System Integration Manual Operating Mode Description Transition between operating modes Active The module is ready to accept data signals from an external device unless power saving configuration is enabled by AT+UPSV (see sections 1.9.2.3, 1.9.3.2, 1.9.4.2 and u-blox AT Commands Manual [2]). When the module is switched on by an appropriate power-on event (see 1.6.1), the module enters active-mode from not-powered or power-off mode.
LISA-U2 series - System Integration Manual 1.5 Power management 1.5.1 Power supply circuit overview LISA-U2 series modules feature a power management concept optimized for the most efficient use of supplied power. This is achieved by hardware design utilizing a power efficient circuit topology (Figure 3), and by power management software controlling the module’s power saving mode.
LISA-U2 series - System Integration Manual Pins with supply function are reported in Table 6, Table 12 and Table 15. LISA-U2 series modules must be supplied via the VCC pins. There is only one main power supply input, available on the three VCC pins that must be all connected to the external power supply.
LISA-U2 series - System Integration Manual The module cannot be switched on if the VCC voltage value is below the specified normal operating range minimum limit. Ensure that the input voltage at VCC pins is above the minimum limit of the normal operating range for more than 3 s after the start of the module switch-on sequence.
LISA-U2 series - System Integration Manual Any degradation in power supply performance (due to losses, noise or transients) will directly affect the RF performance of the module since the single external DC power source indirectly supplies all the digital and analog interfaces, and also directly supplies the RF power amplifier (PA). The voltage at the VCC pins must ramp from 2.5 V to 3.2 V within 1 ms.
LISA-U2 series - System Integration Manual The usage of a regulator or a battery not able to withstand the maximum VCC peak current consumption stated in LISA-U2 series Data Sheet [1] is generally not recommended. However, if the selected regulator or battery is not able to withstand the maximum VCC peak current, it must be able to withstand at least the maximum average current consumption value specified in the module data sheet Error! Reference source not found..
LISA-U2 series - System Integration Manual 12V LISA-U2 series 4 VIN R2 C1 C2 BD 1 BOOST 2 5 RUN R1 C3 C4 9 VC 10 RT 7 PG R3 6 SW 61 VCC 62 VCC 63 VCC C6 L1 3 D1 U1 C8 FB 8 SYNC GND 11 C5 C7 R4 R5 GND Figure 6: Suggested schematic design for the VCC voltage supply application circuit using a step-down regulator Reference Description Part Number - Manufacturer C1 10 µF Capacitor Ceramic X7R 5750 15% 50 V C5750X7R1H106MB - TDK C2 C3 10 nF Capacitor Ceramic X7R 0402 10% 16 V 68
LISA-U2 series - System Integration Manual Reference Description Part Number - Manufacturer C1 22 µF Capacitor Ceramic X5R 1210 10% 25 V GRM32ER61E226KE15 – Murata C2 100 µF Capacitor Tantalum B_SIZE 20% 6.3V 15m T520B107M006ATE015 – Kemet C3 C4 5.6 nF Capacitor Ceramic X7R 0402 10% 50 V 6.
LISA-U2 series - System Integration Manual LISA-U2 series 5V 2 IN OUT 61 VCC 62 VCC 63 VCC 4 U1 C1 R1 R2 1 SHDN ADJ C2 C3 5 GND 3 GND R3 Figure 8: Suggested schematic design for the VCC voltage supply application circuit using an LDO linear regulator Reference Description Part Number - Manufacturer C1, C2 C3 10 µF Capacitor Ceramic X5R 0603 20% 6.3 V 330 µF Capacitor Tantalum D_SIZE 6.3 V 45 mΩ GRM188R60J106ME47 - Murata T520D337M006ATE045 - KEMET R1 47 kΩ Resistor 0402 5% 0.
LISA-U2 series - System Integration Manual Additional recommendations for the VCC supply application circuits To reduce voltage drops, use a low impedance power source. The resistance of the power supply lines (connected to the VCC and GND pins of the module) on the application board and battery pack should also be considered and minimized: cabling and routing must be as short as possible in order to minimize power losses.
LISA-U2 series - System Integration Manual External battery charging application circuit LISA-U2 series modules do not have an on-board charging circuit. An example of a battery charger design, suitable for applications that are battery powered with a Li-Ion (or Li-Polymer) cell, is provided in Figure 10.
LISA-U2 series - System Integration Manual 1.5.3 Current consumption profiles During operation, the current drawn by the LISA-U2 series modules through the VCC pins can vary by several orders of magnitude. This ranges from the high peak of current consumption during GSM transmitting bursts at maximum power level in 2G connected mode, to continuous high current drawn in UMTS connected mode, to the low current consumption during power saving in idle-mode. 1.5.3.
LISA-U2 series - System Integration Manual When a GPRS connection is established there is a different VCC current consumption profile also determined by the transmitting and receiving bursts. In contrast to a GSM call, during a GPRS connection more than one slot can be used to transmit and/or more than one slot can be used to receive.
LISA-U2 series - System Integration Manual 1.5.3.2 3G connected mode During a 3G connection, the module can transmit and receive continuously due to the Frequency Division Duplex (FDD) mode of operation with the Wideband Code Division Multiple Access (WCDMA). The current consumption depends again on output RF power, which is always regulated by network commands. These power control commands are logically divided into a slot of 666 µs, thus the rate of power change can reach a maximum rate of 1.5 kHz.
LISA-U2 series - System Integration Manual 1.5.3.3 2G and 3G cyclic idle/active mode (power saving enabled) The power saving configuration is by default disabled, but it can be enabled using the appropriate AT command (see the u-blox AT Commands Manual [2], AT+UPSV command). When power saving is enabled, the module automatically enters idle-mode whenever possible.
LISA-U2 series - System Integration Manual 1.5.3.4 2G and 3G fixed active mode (power saving disabled) Power saving configuration is by default disabled, or it can be disabled using the appropriate AT command (see the u-blox AT Commands Manual [2], AT+UPSV command). When power saving is disabled, the module does not automatically enter idle-mode whenever possible: the module remains in active mode.
LISA-U2 series - System Integration Manual 1.5.4 RTC Supply (V_BCKP) The V_BCKP pin connects the supply for the Real Time Clock (RTC) and Power-On / Reset internal logic. This supply domain is internally generated by a linear regulator integrated in the Power Management Unit. The output of this linear regulator is always enabled when the main voltage supply provided to the module through VCC is within the valid operating range, with the module switched-off or powered-on.
LISA-U2 series - System Integration Manual The internal regulator for V_BCKP is optimized for low leakage current and very light loads. It is not recommended to use V_BCKP to supply external loads. If V_BCKP is left unconnected and the module main voltage supply is removed from VCC, the RTC is supplied from the bypass capacitor mounted inside the module.
LISA-U2 series - System Integration Manual the VCC supply has been provided. The purpose of the series diode is to avoid a current flow from the module V_BCKP pin to the non-rechargeable battery. Combining a LISA-U2 series cellular module with a u-blox GNSS receiver, the VCC supply of the GNSS receiver is controlled by the cellular module by means of the “GNSS supply enable” function provided by the GPIO2 of the cellular module.
LISA-U2 series - System Integration Manual 1.5.5 Interface supply (V_INT) The same voltage domain used internally to supply the digital interfaces is also available on the V_INT pin. The internal regulator that generates the V_INT supply is a switching step down converter that is directly supplied from VCC. The voltage regulator output is set to 1.8 V (typical) when the module is switched on and is disabled when the module is switched off or when the RESET_N pin is forced the low level.
LISA-U2 series - System Integration Manual 1.6 System functions 1.6.1 Module power-on When the LISA-U2 series modules are in the not-powered mode (i.e. switched off with the VCC module supply not applied), they can be switched on by: Rising edge on the VCC pin to a valid voltage as module supply (i.e.
LISA-U2 series - System Integration Manual 1.6.1.2 Low pulse on PWR_ON When the module is in power-off mode, i.e. it has been properly switched off as described in the section 1.6.2 (e.g. by the AT+CPWROFF command) and a voltage within the operating range is maintained at the VCC pins, the module can be switched on by means of the PWR_ON input pin: a falling edge must be provided on the PWR_ON pin, which must be then held low for an appropriate time period as specified in LISA-U2 series Data Sheet [1].
LISA-U2 series - System Integration Manual 1.6.1.3 Rising edge on RESET_N When the module is in power-off mode (i.e. switched off with VCC maintained), the module can be switched on by means of the RESET_N input pin alternatively to the PWR_ON input pin: the RESET_N signal must be forced low for at least 50 ms and then released to generate a rising edge that starts the module power-on sequence.
LISA-U2 series - System Integration Manual Figure 18 shows the modules power-on sequence from the power-off mode, describing the following phases: The external supply is still applied to the VCC inputs as it is assumed that the module has been previously switched off by means of the AT+CPWROFF command: the V_BCKP output is internally enabled as proper VCC is present, the RESET_N of LISA-U2 series is set to high logic level due to internal pull-up to V_BCKP, the PWR_ON is set to high logic level due to e
LISA-U2 series - System Integration Manual 1.6.
LISA-U2 series - System Integration Manual Figure 19 describes the module’s power-off sequence, properly started by sending the AT+CPWROFF command, allowing storage of current parameter settings in the module’s non-volatile memory and a proper network detach: When the +CPWROFF AT command is sent, the module starts the switch-off routine. The module replies OK on the AT interface: the switch-off routine is in progress.
LISA-U2 series - System Integration Manual 1.6.3 Module reset LISA-U2 series modules can be properly reset (rebooted) by: AT+CFUN command (see the u-blox AT Commands Manual [2] for more details). This command causes an “internal” or “software” reset of the module, causing an asynchronous reset of the module baseband processor, excluding the integrated Power Management Unit and the RTC internal block.
LISA-U2 series - System Integration Manual If RESET_N is connected to an external device (e.g. an application processor on an application board) an open drain output can be directly connected without any external pull-up. A push-pull output can be used too: in this case make sure that the high level voltage of the push-pull circuit is below the maximum voltage operating range of the RESET_N pin (specified in the RESET_N pin characteristics table in LISA-U2 series Data Sheet [1]).
LISA-U2 series - System Integration Manual 1.7 RF connection The ANT pin, provided by all LISA-U2 modules, represents the main RF input/output used to transmit and receive the 2G and 3G RF signal: the main antenna must be connected to this pad. The ANT pin has a nominal characteristic impedance of 50 and must be connected to the antenna through a 50 transmission line to allow transmission and reception of radio frequency (RF) signals in the 2G and 3G operating bands.
LISA-U2 series - System Integration Manual 1.8 (U)SIM interface High-speed SIM/ME interface is implemented as well as automatic detection of the required SIM supporting voltage. Both 1.8 V and 3 V SIM types are supported: activation and deactivation with automatic voltage switch from 1.8 V to 3 V is implemented, according to ISO-IEC 7816-3 specifications. The SIM driver supports the PPS (Protocol and Parameter Selection) procedure for baud-rate selection, according to the values determined by the SIM Card.
LISA-U2 series - System Integration Manual 1.8.1 (U)SIM application circuits 1.8.1.1 SIM cards, SIM connectors and SIM chips selection The ISO/IEC 7816, the ETSI TS 102 221 and the ETSI TS 102 671 specifications define the physical, electrical and functional characteristics of Universal Integrated Circuit Cards (UICC) which contains the Subscriber Identification Module (SIM) integrated circuit that securely stores all the information needed to identify and authenticate subscribers over the GSM network.
LISA-U2 series - System Integration Manual 1.8.1.2 Single SIM card without detection A removable SIM card placed in a SIM card holder must be connected to the SIM card interface of LISA-U2 modules as described in Figure 21, where the optional SIM detection feature is not implemented (see the circuit described in Figure 23 if the SIM detection feature is required).
LISA-U2 series - System Integration Manual 1.8.1.3 Single SIM chip A solderable SIM chip (M2M UICC Form Factor) must be connected the SIM card interface of LISA-U2 modules as described in Figure 22, where the optional SIM detection feature is not implemented (see the circuit described in Figure 23 if the SIM detection feature is required).
LISA-U2 series - System Integration Manual Follow these guidelines connecting the module to a SIM connector implementing the SIM presence detection: Connect the UICC / SIM contacts C1 (VCC) and C6 (VPP) to the VSIM pin of the module Connect the UICC / SIM contact C7 (I/O) to the SIM_IO pin of the module Connect the UICC / SIM contact C3 (CLK) to the SIM_CLK pin of the module Connect the UICC / SIM contact C2 (RST) to the SIM_RST pin of the module Connect the UICC / SIM contact C5 (GND) t
LISA-U2 series - System Integration Manual 1.8.1.5 Dual SIM card connection Two SIM cards / chips can be connected to the module’s SIM interface, as described in the circuit of Figure 24. LISA-U2 modules do not support the usage of two SIMs at the same time, but two SIMs can be populated on the application board providing a proper switch to connect only the first SIM or only the second SIM per time to the SIM interface of the modules as described in Figure 24.
LISA-U2 series - System Integration Manual FIRST SIM CARD LISA-U2 series VSIM 50 3V8 VPP (C6) 4PDT C11 Analog Switch VCC 1VSIM VSIM 2VSIM VCC (C1) SIM_IO 48 DAT 1DAT 2DAT SIM_CLK 47 CLK 1CLK 2CLK SIM_RST 49 RST 1RST 2RST IO (C7) CLK (C3) RST (C2) C1 C2 C3 C4 GND (C5) C5 D1 D2 D3 D4 J1 SECOND SIM CARD VPP (C6) SEL GND VCC (C1) U1 IO (C7) CLK (C3) Application Processor RST (C2) GPIO C6 R1 C7 C8 C9 C10 GND (C5) D5 D6 D7 D8 J2 Figure 24: Application circuit for the connec
LISA-U2 series - System Integration Manual 1.9 Serial communication LISA-U2 modules provide the following serial communication interfaces where AT command interface and Packet-Switched / Circuit-Switched Data communication are concurrently available: One asynchronous serial interface (UART) that provides complete RS-232 functionality conforming to ITU-T V.
LISA-U2 series - System Integration Manual 1.9.1 Serial interfaces configuration UART, USB and SPI/IPC serial interfaces are available as AT command interface and for Packet-Switched / CircuitSwitched Data communication. The serial interfaces are configured as described in Table 26 (for information about further settings, see the u-blox AT Commands Manual [2]).
LISA-U2 series - System Integration Manual 1.9.2 Asynchronous serial interface (UART) The UART interface is a 9-wire unbalanced asynchronous serial interface that provides AT commands interface, PSD and CSD data communication. The module firmware can be upgraded over the UART interface using the u-blox EasyFlash tool or by means of AT command (for more details see section 3.1 and Firmware update application note [17]). UART interface provides RS-232 functionality conforming to the ITU-T V.
LISA-U2 series - System Integration Manual 1.9.2.1 UART features All flow control handshakes are supported by the UART interface and can be set by appropriate AT commands (see u-blox AT Commands Manual [2], &K, +IFC, \Q AT commands): hardware flow control (RTS/CTS), software flow control (XON/XOFF), or none flow control. Hardware flow control is enabled by default. One-shot autobauding is supported: the baud rate detection is performed once, at module start up.
LISA-U2 series - System Integration Manual One-shot automatic frame recognition is supported and enabled in conjunction with the one-shot automatic baud rate detection only: when the one-shot autobauding is active, the one-shot automatic frame recognition is enabled overruling the frame format setting. The frame format recognition is performed once and then, after the successful recognition of the frame format, the automatic frame recognition is disabled, as the automatic baud rate detection.
LISA-U2 series - System Integration Manual 1.9.2.2 UART signal behavior See Table 5 for a description of operating modes and states referred to in this section. At the switch on of the module, before the initialization of the UART interface, as described in the power-on sequence reported in the Figure 18, each pin is first tri-stated and then is set to its specific internal reset state that is reported in the pin description table in LISA-U2 series Data Sheet [1].
LISA-U2 series - System Integration Manual RTS signal behavior The hardware flow control input (RTS line) is set by default to the OFF state (high level) at UART initialization. The RTS line is then held by the module in the OFF state if the line is not activated by the DTE: an active pull-up is enabled inside the module on the RTS input. If the HW flow control is enabled (for more details see the u-blox AT Commands Manual [2] AT&K, AT\Q, AT+IFC command description) the RTS line is monitored by the module
LISA-U2 series - System Integration Manual DCD signal behavior If AT&C0 is set, the DCD module output line is set by default to ON state (low level) at UART initialization and is then always held in the ON state. If AT&C1 is set, the DCD module output line is set by default to OFF state (high level) at UART initialization. The DCD line is then set by the module in accordance with the carrier detect status: ON if the carrier is detected, OFF otherwise.
LISA-U2 series - System Integration Manual RI signal behavior The RI module output line is set by default to the OFF state (high level) at UART initialization. Then, during an incoming call, the RI line is switched from OFF state to ON state with a 4:1 duty cycle and a 5 s period (ON for 1 s, OFF for 4 s, see Figure 26), until the DTE attached to the module sends the ATA string and the module accepts the incoming data call.
LISA-U2 series - System Integration Manual 1.9.2.3 UART and power-saving The power saving configuration is controlled by the AT+UPSV command (for the complete description see the u-blox AT Commands Manual [2]). When power saving is enabled, the module automatically enters low power idle-mode whenever possible; otherwise the active-mode is maintained by the module (see section 1.4 for the definition and description of module operating modes).
LISA-U2 series - System Integration Manual AT+UPSV HW flow control RTS line DTR line Communication during idle-mode and wake up 2 Enabled (AT&K3) ON or OFF ON or OFF Not Applicable: HW flow control cannot be enabled with AT+UPSV=2. 2 Disabled (AT&K0) ON ON or OFF 2 Disabled (AT&K0) OFF ON or OFF 3 Enabled (AT&K3) ON ON 3 Enabled (AT&K3) ON OFF Data sent by the DTE is correctly received by the module.
LISA-U2 series - System Integration Manual The time period between two paging receptions is defined by the current base station (i.e. by the network): If the module is registered with a 2G network, the paging reception period can vary from ~0.47 s (DRX = 2, i.e. 2 x 51 2G-frames) up to ~2.12 s (DRX = 9, i.e. 9 x 51 2G-frames) If the module is registered with a 3G network, the paging reception period can vary from 0.64 s (DRX = 6, 6 9 i.e. 2 3G-frames) up to 5.12 s (DRX = 9, i.e.
LISA-U2 series - System Integration Manual AT+UPSV=2: power saving enabled and controlled by the RTS line This configuration can only be enabled with the module hardware flow control disabled by AT&K0 command. The UART interface is immediately disabled after the DTE sets the RTS line to OFF. Then, the module automatically enters idle-mode whenever possible according to any required activity related to the network or any other required activity related to the functions / interfaces of the module.
LISA-U2 series - System Integration Manual The UART wake up via data reception configuration is not active on the TXD input, and therefore all the data sent by the DTE is lost, if: o AT+UPSV=2 is set with HW flow control disabled, and the RTS line is set OFF o AT+UPSV=3 is set, regardless HW flow control setting, and the DTR line is set OFF Figure 29 and Figure 30 show examples of common scenarios and timing constraints: AT+UPSV=1 power saving configuration is active and the timeout from last data rec
LISA-U2 series - System Integration Manual Figure 30 shows the case where in addition to the wake-up character further (valid) characters are sent. The wake up character wakes-up the module UART. The other characters must be sent after the “wake up time” of ~20 ms. If this condition is satisfied, the module (DCE) recognizes characters. The module will disable the UART after 2000 GSM frames from the latest data reception. The “wake-up via data reception” feature cannot be disabled.
LISA-U2 series - System Integration Manual 1.9.2.4 UART application circuits Providing the full RS-232 functionality (using the complete V.24 link) If RS-232 compatible signal levels are needed, to provide full RS-232 (9 lines) functionality two different external voltage translators (e.g. Maxim MAX3237E and Texas Instruments SN74AVC4T774) can be used. The Texas Instruments chips provide the translation from 1.8 V to 3.3 V, while the Maxim chip provides the translation from 3.
LISA-U2 series - System Integration Manual Providing the TxD, RxD, RTS, CTS and DTR lines only (not using the complete V.24 link) If the functionality of the DSR, DCD and RI lines is not required, or the lines are not available: Leave DSR, DCD and RI lines of the module unconnected and floating If RS-232 compatible signal levels are needed, two different external voltage translators (e.g. Maxim MAX3237E and Texas Instruments SN74AVC4T774) can be used.
LISA-U2 series - System Integration Manual If only TxD, RxD, RTS, CTS and DTR lines are provided (as implemented in Figure 33 and in Figure 34) and if HW flow-control is enabled (AT&K3, default setting), the power saving can be activated as it can be done when the complete UART link is provided (9-wire, as implemented in Figure 31 and in Figure 32), i.e.
LISA-U2 series - System Integration Manual If a 3.0 V Application Processor is used, appropriate unidirectional voltage translators must be provided using the module V_INT output as 1.8 V supply, as described in Figure 36. Application processor (3.0V DTE) Unidirectional Voltage Translator 3V0 VCC LISA-U2 series (1.
LISA-U2 series - System Integration Manual If RS-232 compatible signal levels are needed, the Maxim 13234E voltage level translator can be used. This chip translates voltage levels from 1.8 V (module side) to the RS-232 standard. Figure 37 describes the circuit that should be implemented as if a 1.8 V Application Processor is used. Application processor (1.8V DTE) LISA-U2 series (1.
LISA-U2 series - System Integration Manual In this case the first character sent when the module is in idle-mode will be a wake-up character and will not be a valid communication character (see section 1.9.2.3 for the complete description). If power saving is enabled the application circuit with the TxD and RxD lines only is not recommended. During command mode the DTE must send to the module a wake-up character or a dummy “AT” before each command line (see section 1.9.2.
LISA-U2 series - System Integration Manual 1.9.3 USB interface LISA-U2 modules provide a high-speed USB interface at 480 Mb/s compliant with the Universal Serial Bus Revision 2.0 specification [7]. It acts as a USB device and can be connected to any USB host such as a PC or other Application Processor. The USB-device shall look for all upper-SW-layers like any other serial device. This means that LISA-U2 modules emulate all serial control logical lines.
LISA-U2 series - System Integration Manual Each USB profile of LISA-U2 module identifies itself by its VID (Vendor ID) and PID (Product ID) combination, included in the USB device descriptor according to the USB 2.0 specifications [7]. If the USB interface is connected to the host before the module switch on, or if the module is reset with the USB interface connected to the host, the VID and PID are automatically updated runtime, after the USB detection.
LISA-U2 series - System Integration Manual Alternative profile configuration Default profile configuration Function AT and Data Function AT and Data Interface 0 Abstract Control Model EndPoint Interface 1 Interface 0 Abstract Control Model EndPoint Transfer: Interrupt Interface 1 Data Transfer: Interrupt Data EndPoint Transfer: Bulk EndPoint Transfer: Bulk EndPoint Transfer: Bulk EndPoint Transfer: Bulk Function AT and Data Function GNSS tunneling Interface 2 Abstract Control Model En
LISA-U2 series - System Integration Manual The USB drivers are available for the following operating system platforms: Windows XP Windows Vista Windows 7 Windows 8 Windows 8.1 Windows CE 5.0 Windows Embedded CE 6.0 Windows Embedded Compact 7 Windows Embedded Automotive 7 Windows Mobile 5 Windows Mobile 6 Windows Mobile 6.1 Windows Mobile 6.5 LISA-U2 modules are compatible with standard Linux/Android USB kernel drivers. 1.9.3.
LISA-U2 series - System Integration Manual External series resistors on pins USB_D+ and USB_D- as required by the Universal Serial Bus Revision 2.0 specification [7] are also integrated: characteristic impedance of USB_D+ and USB_D- lines is specified by the USB standard.
LISA-U2 series - System Integration Manual 1.9.4 SPI interface SPI is a master-slave protocol: the module runs as an SPI slave, i.e. it accepts AT commands on its SPI interface without specific configuration. The SPI-compatible synchronous serial interface cannot be used for FW upgrade. The standard 3-wire SPI interface includes two signals to transmit and receive data (SPI_MOSI and SPI_MISO) and a clock signal (SPI_SCLK).
LISA-U2 series - System Integration Manual 1.9.4.1 IPC communication protocol overview The module runs as an SPI slave, i.e. it accepts AT commands on its SPI interface without specific configuration. The SPI-device shall look for all upper-SW-layers like any other serial device. This means that LISA-U2 modules emulate all serial logical lines: the transmission and the reception of the data are similar to an asynchronous device.
LISA-U2 series - System Integration Manual 1.9.4.
LISA-U2 series - System Integration Manual 4. If the data has been exchanged, the slave deactivates SPI_SRDY to process the received information. The master does not need to de-assert SPI_MRDY as it controls the SPI_SCLK 5. After the preparation, the slave activates again SPI_SRDY and wait for SPI_SCLK activation. When the clock is active, all data is transferred without intervention.
LISA-U2 series - System Integration Manual If a 1.8 V Application Processor is used, the SPI Master pins can be directly connected to the specific LISA-U2 SPI slave pins as described in Figure 45. It is recommended to tri-state the output pins of the SPI Master (i.e.
LISA-U2 series - System Integration Manual If the SPI/IPC interface is not used, the SPI_MOSI, SPI_MISO, SPI_SCLK, SPI_MRDY, SPI_SRDY pins can be left unconnected. Any external signal connected to the SPI / IPC interface must be tri-stated when the module is in power-down mode, when the external reset is forced low and during the module power-on sequence (at least for 3 s after the start-up event), to avoid latch-up of circuits and allow a proper boot of the module.
LISA-U2 series - System Integration Manual 1.10 DDC (I2C) interface 1.10.1 Overview 2 An I C bus compatible Display Data Channel (DDC) interface for communication with u-blox GNSS receivers is available on LISA-U2 modules. The communication between a u-blox cellular module and a u-blox GNSS receiver 2 is only provided by this DDC (I C) interface. Name Description Remarks SCL I2C bus clock line Open drain. External pull-up required. SDA I2C bus data line Open drain. External pull-up required.
LISA-U2 series - System Integration Manual 2 To be compliant to the I C bus specifications, the module bus interface pads are open drain output and pull up 2 resistors must be mounted externally. Resistor values must conform to the I C bus specifications [8]: for example, 4.7 k resistors can be commonly used. Pull-ups must be connected to a supply voltage of 1.8 V (typical), since this is the voltage domain of the DDC pins which are not tolerant to higher voltage values (e.g. 3.0 V).
LISA-U2 series - System Integration Manual The “GNSS supply enable” function improves the power consumption of the GNSS receiver. When the GNSS functionality is not required, the GNSS receiver can be completely switched off by the cellular module that is controlled by the application processor with AT commands.
LISA-U2 series - System Integration Manual or a warm start (depending on the duration of the GNSS VCC outage) and to maintain the configuration settings saved in the backup RAM. “GNSS data ready” and “GNSS RTC sharing” functions are not supported by all u-blox GNSS receivers HW or ROM/FW versions. See the GNSS Implementation Application Note [16] or to the Hardware Integration Manual of the u-blox GNSS receivers for the supported features. u-blox GNSS 1.
LISA-U2 series - System Integration Manual Connection with u-blox 3.0 V GNSS receivers Figure 48 shows an application circuit for connecting a LISA-U2 cellular module to a u-blox 3.0 V GNSS receiver: As the SDA and SCL pins of the LISA-U2 cellular module are not tolerant up to 3.0 V, the connection to the 2 2 related I C pins of the u-blox 3.0 V GNSS receiver must be provided using a proper I C-bus Bidirectional Voltage Translator (e.g.
LISA-U2 series - System Integration Manual 1.11 Audio Interface 2 All LISA-U2 series modules provide two bidirectional 4-wire I S digital audio interfaces for connecting to remote digital audio devices: First 4-wire I S digital audio interface (I2S_CLK, I2S_RXD, I2S_TXD and I2S_WA) Second 4-wire I S digital audio interface (I2S1_CLK, I2S1_RXD, I2S1_TXD and I2S1_WA) 2 2 Audio signal routing can be controlled by the dedicated AT command +USPM (see the u-blox AT Commands Manual [2]).
LISA-U2 series - System Integration Manual 2 The I S interface can be set to two configurations, by the parameter of AT+UI2S: Master mode Slave mode The sample rate of transmitted/received words can be set, by the parameter of AT+UI2S, to: 8 kHz 11.025 kHz 12 kHz 16 kHz 22.05 kHz 24 kHz 32 kHz 44.
LISA-U2 series - System Integration Manual When I S word alignment toggles high, the first synchronization bit is always low. Second synchronization 2 bit (present only in case of 2 bit long I S word alignment configuration) is MSB of the transmitted word (MSB is transmitted twice in this case) I S transmit data changes on I S clock rising edge, I S receive data changes on I S clock falling edge 2 2 2 2 2 1.11.
LISA-U2 series - System Integration Manual unidirectional voltage translators (e.g. Texas Instruments SN74AVC4T774 or SN74AVC2T245), using the module V_INT output as 1.8 V supply for the voltage translators on the module side For the appropriate selection of a compliant external digital audio device, see +UI2S AT command description in 2 the u-blox AT Commands Manual [2] for further details regarding the capabilities and the possible settings of I S digital audio interface of LISA-U2 series modules.
LISA-U2 series - System Integration Manual Additional components are provided for EMC and ESD immunity conformity according to European Norms for R&TTE Directive (99/5/EC) and EMC Directive (89/336/EEC) compliance. The recommended parts for EMC and ESD immunity conformity are: a 10 nF bypass capacitor (e.g. Murata GRM155R71C103KA88) and a proper series chip ferrite bead noise/EMI suppression filter (e.g.
LISA-U2 series - System Integration Manual 1.11.4 Voiceband processing system The voiceband processing on the LISA-U2 modules is implemented in the DSP core inside the baseband chipset. 2 The external digital audio devices can be interfaced directly to the DSP digital processing part via the I S digital interface. With exception of the speech encoder/decoder, audio processing can be controlled by AT commands.
LISA-U2 series - System Integration Manual UTRAN codecs: o UMTS AMR2 (UMTS Adaptive Multi Rate version 2 – Narrow Band) o UMTS AMR-WB (UMTS Adaptive Multi Rate – Wide Band) Mandatory sub-functions: o Discontinuous transmission, DTX (GSM 46.031, 46.041, 46.081 and 46.093 standards) o Voice activity detection, VAD (GSM 46.032, 46.042, 46.082 and 46.094 standards) o Background noise calculation (GSM 46.012, 46.022, 46.062 and 46.
LISA-U2 series - System Integration Manual 1.12 General Purpose Input/Output (GPIO) LISA-U2 series modules provide up to 14 pins (GPIO1-14) which can be configured as general purpose input or output, or can be configured to provide special functions via u-blox AT commands (for further details see the u-blox AT Commands Manual [2], +UGPIOC, +UGPIOR, +UGPIOW, +UGPS, +UGPRF, +USPM).
LISA-U2 series - System Integration Manual GNSS RTC sharing: Only the GPIO4 pin provides the “GNSS RTC sharing” function, to provide an RTC (Real Time Clock) synchronization signal to the u-blox GNSS receiver connected to the cellular module, setting the parameter of AT+UGPIOC command to 5.
LISA-U2 series - System Integration Manual The pin configured to provide the “Network status indication” function can be connected on the application board to an input pin of an application processor or can drive a LED by a transistor with integrated resistors to indicate network status. Module status indication: The GPIO1 and GPIO13 pins can be configured to indicate module status (power-off mode, i.e. module switched off, versus idle, active or connected mode, i.e.
LISA-U2 series - System Integration Manual The pin can be connected on the application board to an output pin of an application processor to sense the digital signal level. General purpose output: All the GPIOs can be configured as output to set the high or the low digital level through AT+UGPIOW command, setting the parameter of +UGPIOC AT command to 0.
LISA-U2 series - System Integration Manual Pin Name Description Remarks 51 GPIO5 GPIO 39 I2S1_RXD / GPIO6 2nd I2S receive data / GPIO 40 I2S1_TXD / GPIO7 2nd I2S transmit data / GPIO 53 I2S1_CLK / GPIO8 2nd I2S clock / GPIO 54 I2S1_WA / GPIO9 2nd I2S word alignment / GPIO 55 SPI_SCLK / GPIO10 SPI Serial Clock / GPIO 56 SPI_MOSI / GPIO11 SPI Data Line / GPIO 57 SPI_MISO / GPIO12 SPI Data Line Output / GPIO 58 SPI_SRDY / GPIO13 SPI Slave Ready / GPIO By default, the pin is conf
LISA-U2 series - System Integration Manual Pin Name Description Remarks 59 SPI_MRDY / GPIO14 SPI Master Ready / GPIO By default, the pin is configured as SPI Master Ready Input: Idle low Internal active pull-down to GND enabled Can be alternatively configured by the +UGPIOC command as Output Input Module Operating Mode Indication Pad disabled Table 42: GPIO pins configurations The GPIO pins ESD sensitivity rating is 1 kV (Human Body Model according to JESD22-A114F).
LISA-U2 series - System Integration Manual u-blox GNSS 1.8 V receiver LISA-U2 series LDO Regulator 3V8 IN GPIO2 21 GPS Supply Enable GPIO4 23 24 VCC SHDN C1 GND R1 GPIO3 1V8 OUT U1 GPS Data Ready TxD1 GPS RTC Sharing EXTINT0 R2 V_INT 4 GPIO5 51 SIM card holder R3 SW1 SIM Detection SW2 J1 3V8 R4 D1 R7 DL1 GPIO1 20 R5 Network Indicator T1 R6 Figure 52: GPIO application circuit Reference Description Part Number - Manufacturer R1 U1 47 kΩ Resistor 0402 5% 0.
LISA-U2 series - System Integration Manual The recommended application circuit for the module status indication function, provided by LISA-U2 series module GPIO1 and GPIO13 pins to indicate module status (power-off mode, i.e. module switched off, versus idle, active or connected mode, i.e. module switched on), is described in Figure 53.
LISA-U2 series - System Integration Manual 1.14 Schematic for LISA-U2 module integration Figure 54 is an example of a schematic diagram where LISA-U2 series module is integrated into an application board, using all the interfaces of the module.
LISA-U2 series - System Integration Manual 1.15 Approvals For all the certificates of compliancy and for the complete list of approvals (including countries’ and network operators’ approvals) of LISA-U2 series modules, see our website (http://www.u-blox.com/) or contact the u-blox office or sales representative nearest you.
LISA-U2 series - System Integration Manual 1.15.1 R&TTED and European Conformance CE mark Products bearing the CE marking comply with the R&TTE Directive (99/5/EC), EMC Directive (89/336/EEC) and the Low Voltage Directive (73/23/EEC) issued by the Commission of the European Community.
LISA-U2 series - System Integration Manual 1.15.2.2 Declaration of conformity This device complies with Part 15 of the FCC rules.
LISA-U2 series - System Integration Manual 1.15.3 Industry Canada notice The Industry Canada (IC) Certification Numbers for the LISA-U2 modules are: LISA-U200: 8595A-LISAU200N LISA-U201: 8595A-LISAU201 LISA-U230: 8595A-LISAU230N LISA-U260: 8595A-LISAU200N LISA-U270: 8595A-LISAU200N 1.15.3.
LISA-U2 series - System Integration Manual The IC Label shall in the above case be visible from the outside, or the host device shall bear a second label stating: LISA-U200: "Contains IC: 8595A-LISAU200N" resp. LISA-U201: "Contains IC: 8595A-LISAU201" resp. LISA-U230: "Contains IC: 8595A-LISAU230" resp. LISA-U260: "Contains IC: 8595A-LISAU200N" resp. LISA-U270: "Contains IC: 8595A-LISAU200N" resp.
LISA-U2 series - System Integration Manual Ce périphérique est homologué pour l'utilisation au Canada. Pour consulter l'entrée correspondant à l’appareil dans la liste d'équipement radio (REL - Radio Equipment List) d'Industrie Canada rendez-vous sur: http://www.ic.gc.ca/app/sitt/reltel/srch/nwRdSrch.do?lang=fra Pour des informations supplémentaires concernant l'exposition aux RF au Canada rendez-vous sur : http://www.ic.gc.ca/eic/site/smt-gst.nsf/eng/sf08792.
LISA-U2 series - System Integration Manual 1.15.6 KCC Certification LISA-U200 and LISA-U270 modules are certified by the Korea Communications Commission (KCC). KCC ID for LISA-U2 modules: LISA-U200: KCC-CRM-ULX-LISA-U200 LISA-U270: KCC-CRM-ULX-LISA-U270 1.15.7 Anatel Certification LISA-U200 modules are certified by the Brazilian Agency of Telecommunications (Agência Nacional de Telecomunicações in Portuguese) (Anatel).
LISA-U2 series - System Integration Manual 1.15.8 CCC Certification LISA-U200 and LISA-U230 modules are CCC certified 1.15.9 TELEC / JATE Certification LISA-U200-62S, LISA-U270-62S and LISA-U270-68S are TELEC / JATE certified and have the Giteki mark placed on the product label.
LISA-U2 series - System Integration Manual 2 Design-In 2.1 Design-in checklist This section provides a design-in checklist. 2.1.1 Schematic checklist The following are the most important points for a simple schematic check: DC supply must provide a nominal voltage at VCC pin above the minimum operating range limit.
LISA-U2 series - System Integration Manual 2.1.2 Layout checklist The following are the most important points for a simple layout check: Check 50 nominal characteristic impedance of the RF transmission line connected to the ANT pad (main RF input/output) and to the ANT_DIV pad (RF input for Rx diversity). Follow the recommendations of the antenna producer for correct antenna installation and deployment (PCB layout and matching circuitry).
LISA-U2 series - System Integration Manual 2.2 Design Guidelines for Layout The following design guidelines must be met for optimal integration of LISA-U2 modules on the final application board. 2.2.
LISA-U2 series - System Integration Manual Rank Layout Remarks ANT Very Important RF input for Rx diversity ANT_DIV Very Important 2 Main DC Supply VCC Very Important 3rd USB Signals USB_D+ USB_D- Very Important 4th Ground Design for 50 characteristic impedance. See section 2.2.1.1 Design for 50 characteristic impedance. See section 2.2.1.1 VCC line should be wide and short. Route away from sensitive analog signals. See section 2.2.1.
LISA-U2 series - System Integration Manual 2.2.1.1 RF antenna connection The ANT pin (main RF input/output) and the ANT_DIV pin (RF input for diversity receiver provided by LISA-U230 modules) are very critical in layout design.
LISA-U2 series - System Integration Manual 500 µm 380 µm 500 µm L1 Copper 35 µm FR-4 dielectric 270 µm L2 Copper 35 µm FR-4 dielectric 760 µm L3 Copper 35 µm FR-4 dielectric 270 µm L4 Copper 35 µm Figure 57: Example of 50 coplanar waveguide transmission line design for the described 4-layer board layup 400 µm 1200 µm 400 µm L1 Copper 35 µm FR-4 dielectric 1510 µm L2 Copper 35 µm Figure 58: Example of 50 coplanar waveguide transmission line design for the described 2-layer board lay
LISA-U2 series - System Integration Manual The transmission line should not have abrupt change to thickness and spacing to GND, but must be uniform and routed as smoothly as possible The transmission line must be routed in a section of the PCB where minimal interference from noise sources can be expected Route RF transmission line far from other sensitive circuits as it is a source of electromagnetic interference Ensure solid metal connection of the adjacent metal layer on the PCB stack-up t
LISA-U2 series - System Integration Manual 2.2.1.2 Main DC supply connection The DC supply of LISA-U2 modules is very important for the overall performance and functionality of the integrated product. For detailed description, check the design guidelines in section 1.5.2.
LISA-U2 series - System Integration Manual 2.2.1.3 USB signal The LISA-U2 modules include a high-speed USB 2.0 compliant interface with a maximum throughput of 480 Mb/s (see Section 1.9.3). Signals USB_D+ / USB_D- carry the USB serial data and signaling. The lines are used in single ended mode for relatively low speed signaling handshake, as well as in differential mode for fast signaling and data transfer. Characteristic impedance of USB_D+ / USB_D- lines is specified by USB standard.
LISA-U2 series - System Integration Manual 2.2.1.4 Module grounding Good connection of the module with application board solid ground layer is required for correct RF performance. It significantly reduces EMC issues and provides a thermal heat sink for the module. Connect each GND pin with application board solid GND layer.
LISA-U2 series - System Integration Manual DDC (SCL, SDA): the DDC interface requires the same consideration regarding electro-magnetic interference as the SIM card. Keep the traces short and avoid coupling with RF line or sensitive analog inputs UART (TXD, RXD, CTS, RTS, DSR, RI, DCD, DTR): the serial interface requires the same consideration regarding electro-magnetic interference as the SIM card.
LISA-U2 series - System Integration Manual 2.2.2 Footprint and paste mask The following figure describes the footprint and provides recommendations for the paste mask for LISA-U2 modules. These are recommendations only and not specifications. Note that the copper and solder masks have the same size and position. 5.7 mm [224.4 mil] 0.9 mm [35.4 mil] 22.4 mm [881.9 mil] 2.3 mm [90.6 mil] 0.8 mm [31.5 mil] 0.6 mm [23.6 mil] 33.2 mm [1307.1 mil] 1.1 mm [43.3 mil] 2.3 mm [90.6 mil] 0.8 mm [31.
LISA-U2 series - System Integration Manual 1.3 mm 5.25 mm 5.3 mm 5.3 mm 5.25 mm 1.4 mm 1.0 mm PIN 1 Exposed GND on LISA-U module bottom layer Signals keep-out areas on application board 33.2 mm LISA-U2 bottom side (through module view) 22.4 mm Figure 62: Signals keep-out areas on the top layer of the application board, below LISA-U2 series modules 2.2.3 Placement Optimize placement for minimum length of RF line and closer path from DC source for VCC.
LISA-U2 series - System Integration Manual 2.3 Thermal guidelines LISA-U2 module operating temperature range and module thermal resistance are specified in the LISA-U2 series Data Sheet [1]. The most critical condition concerning module thermal performance is the uplink transmission at maximum power (data upload or voice call in connected mode), when the baseband processor runs at full speed, radio circuits are all active and the RF power amplifier is driven to higher output RF power.
LISA-U2 series - System Integration Manual Further hardware techniques to be used to improve heat dissipation in the application: Force ventilation air-flow within mechanical enclosure Provide a heat sink component attached to the module top side, with electrically insulated / high thermal conductivity adhesive, or on the backside of the application board, below the cellular module, as a large part of the heat is transported through the GND pads and dissipated over the backside of the application bo
LISA-U2 series - System Integration Manual 2.4 Antenna guidelines Antenna characteristics are essential for good functionality of the module. Antenna radiating performance has direct impact on the reliability of connections over the Air Interface. A bad termination of the ANT pin (main RF input/output) and the ANT_DIV pin (RF input for diversity receiver provided by LISA-U230 modules) can result in poor performance of the module.
LISA-U2 series - System Integration Manual GSM antennas are typically available as: Linear monopole: typical for fixed applications. The antenna extends mostly as a linear element with a dimension comparable to lambda/4 of the lowest frequency of the operating band. Magnetic base may be available. Cable or direct RF connectors are common options.
LISA-U2 series - System Integration Manual 2.4.1 Antenna termination The LISA-U2 modules are designed to work on a 50 load. However, real antennas have no perfect 50 load on all the supported frequency bands.
LISA-U2 series - System Integration Manual 2.4.2 Antenna radiation An indication of the antenna’s radiated power can be approximated by measuring the |S21| from a target antenna to the measurement antenna, using a network analyzer with a wideband antenna. Measurements should be done at a fixed distance and orientation, and results compared to measurements performed on a known good antenna. Figure 65 through Figure 66 show measurement results.
LISA-U2 series - System Integration Manual 2.4.3 Examples of antennas Table 47 lists some examples of possible internal on-board surface-mount antennas Manufacturer Part Number Product Name Description Taoglas PA.25.A Anam Taoglas PA.710.A Warrior Taoglas PA.711.A Warrior II GSM / WCDMA SMD Antenna 824..960 MHz, 1710..2170 MHz 36.0 x 6.0 x 5.0 mm GSM / WCDMA / LTE SMD Antenna 698..960 MHz, 1710..2170 MHz, 2300..2400 MHz, 2490..2690 MHz 40.0 x 6.0 x 5.
LISA-U2 series - System Integration Manual Table 49 lists some examples of possible external antennas. Manufacturer Part Number Product Name Description Taoglas GSA.8827.A.101111 Phoenix Taoglas GSA.8821.A.301721 I-Bar Taoglas TG.30.8112 GSM / WCDMA / LTE low-profile adhesive-mount Antenna with cable and SMA(M) connector 698..960 MHz, 1575.42 MHz, 1710..2170 MHz, 2490..2690 MHz 105 x 30 x 7.7 mm GSM / WCDMA low-profile adhesive-mount Antenna with cable and Fakra (code-D) connector 824..
LISA-U2 series - System Integration Manual 2.4.4 Antenna detection functionality The internal antenna detect circuit is based on ADC measurement at ANT: the RF port is DC coupled to the ADC unit in the baseband chip which injects a DC current (10 µA for 128 µs) on ANT and measures the resulting DC voltage to evaluate the resistance from ANT pad to GND. The antenna detection is forced by the +UANTR AT command: see the u-blox AT Commands Manual [2] for more details on how to access this feature.
LISA-U2 series - System Integration Manual For example: Consider a GSM antenna with built-in DC load resistor of 15 k. Using the +UANTR AT command, the module reports the resistance value evaluated from ANT connector to GND: Reported values close to the used diagnostic resistor nominal value (i.e.
LISA-U2 series - System Integration Manual 2.5.
LISA-U2 series - System Integration Manual 2.5.3 ESD application circuits The application circuits described in this section are recommended and should be implemented in any device that integrates a LISA-U2 module, according to the application board classification (see ETSI EN 301 489-1 [12]), to satisfy the requirements for ESD immunity test summarized in Table 51.
LISA-U2 series - System Integration Manual With LISA-U230 modules, the ANT_DIV pin provides ESD immunity up to +4 kV / -4 kV for direct Contact Discharge and up to +8 kV / -8 kV for Air Discharge: no further precaution to ESD immunity test is needed, as implemented in the EMC / ESD approved reference design of LISA-U230 modules.
LISA-U2 series - System Integration Manual The maximum ESD sensitivity rating of all the other pins of the module is 1 kV (Human Body Model according to JESD22-A114F). Higher protection level could be required if the relevant pin is externally accessible on the application board. The following precautions are suggested to achieve higher protection level: USB interface: a very low capacitance (i.e. less or equal to 1 pF) ESD protection device (e.g.
LISA-U2 series - System Integration Manual 3 Features description 3.1 Network indication The GPIO1, GPIO2, GPIO3, GPIO4 or GPIO5 alternatively from their default settings, can be configured to indicate network status (i.e. no service, registered home network, registered visitor network, voice or data call enabled), by means of the AT+UGPIOC command. For the detailed description, see section 1.12 and to u-blox AT Commands Manual [2], GPIO commands. 3.
LISA-U2 series - System Integration Manual 3.4 TCP/IP and UDP/IP Via the AT commands it is possible to access the TCP/IP and UDP/IP functionalities over the Packet Switched data connection. For more details about AT commands see the u-blox AT Commands Manual [2]. LISA-U2 modules support the Direct Link mode for TCP and UDP sockets. Sockets can be set in Direct Link mode to establish a transparent end-to-end communication with an already connected TCP or UDP socket via serial interface.
LISA-U2 series - System Integration Manual LISA-U2 modules support also Secure Hyper-Text Transfer Protocol functionalities providing SSL encryption. For more details about AT commands see the u-blox AT Commands Manual [2]. 3.7 SSL/TLS The modules support the Secure Sockets Layer (SSL) / Transport Layer Security (TLS) with certificate key sizes up to 4096 bits to provide security over the FTP and HTTP protocols.
LISA-U2 series - System Integration Manual Algorithm Supported feature RC4 DES NO11 YES 3DES AES128 YES10 YES AES256 YES10 Table 57: Encryption Algorithm Supported feature MD5 NO11 SHA/SHA1 SHA256 YES YES10 SHA384 YES10 Table 58: Message digest Description Registry value Supported feature TLS_RSA_WITH_AES_128_CBC_SHA 0x00,0x2F YES10 TLS_RSA_WITH_AES_128_CBC_SHA256 0x00,0x3C YES10 TLS_RSA_WITH_AES_256_CBC_SHA TLS_RSA_WITH_AES_256_CBC_SHA256 0x00,0x35 0x00,0x3D YES10 YES10 TLS_R
LISA-U2 series - System Integration Manual 3.9 AssistNow clients and GNSS integration For customers using u-blox GNSS receivers, LISA-U2 cellular modules feature embedded AssistNow clients. AssistNow A-GPS provides better GNSS performance and faster Time-To-First-Fix. The clients can be enabled and disabled with an AT command (see the u-blox AT Commands Manual [2]).
LISA-U2 series - System Integration Manual ® 2. CellLocate server defines the area of Cell A visibility ® 3. If a new device reports the observation of Cell A CellLocate is able to provide the estimated position from the area of visibility 4. The visibility of multiple cells provides increased accuracy based on the intersection of areas of visibility.
LISA-U2 series - System Integration Manual 3.10.2 Hybrid positioning With u-blox Hybrid positioning technology, u-blox cellular devices can be triggered to provide their current ® position using either a u-blox GNSS receiver or the position estimated from CellLocate . The choice depends on which positioning method provides the best and fastest solution according to the user configuration, exploiting the benefit of having multiple and complementary positioning methods.
LISA-U2 series - System Integration Manual 3.12.2 FOAT procedure The application processor must proceed in the following way: Send the AT+UFWUPD command through the UART or over the USB interface, specifying the file type and the desired baud rate Reconfigure the serial communication at the selected baud rate, without flow control with the Xmodem-1k protocol Send the new FW image via Xmodem-1k 3.
LISA-U2 series - System Integration Manual A typical application using the SAP feature is the scenario where a device such as an embedded car-phone with an integrated LISA-U2 module uses a remote SIM included in an external user device (e.g. a simple SIM card reader or a portable phone), which is brought into the car. The car-phone accesses the GSM/UMTS network using the remote SIM in the external device.
LISA-U2 series - System Integration Manual 3.15 Smart Temperature Management Cellular modules – independent of the specific model – always have a well defined operating temperature range. This range should be respected to guarantee full device functionality and long life span. Nevertheless there are environmental conditions that can affect operating temperature, e.g. if the device is located near a heating/cooling source, if there is/isn’t air circulating, etc.
LISA-U2 series - System Integration Manual Figure 73 shows the flow diagram implemented in LISA-U2 modules for the Smart Temperature Supervisor.
LISA-U2 series - System Integration Manual 3.15.2 Threshold Definitions When the application of cellular module operates at extreme temperatures with Smart Temperature Supervisor enabled, the user should note that outside the valid temperature range the device will automatically shut down as described above. The input for the algorithm is always the temperature measured within the cellular module (Ti, internal).
LISA-U2 series - System Integration Manual 3.18 Network Friendly Mode Not supported by "01", "x2" and "68" product versions. The Network Friendly Mode (NFM) feature provides a more efficient access to the network since it regulates the number of network accesses per service type over a configurable amount of time, avoiding scenarios in which the cellular module continuously retries a registration or a PDP context activation procedure until it is successful.
LISA-U2 series - System Integration Manual 4 Handling and soldering No natural rubbers, no hygroscopic materials or materials containing asbestos are employed. 4.1 Packaging, shipping, storage and moisture preconditioning For information pertaining to reels and tapes, Moisture Sensitivity levels (MSD), shipment and storage information, as well as drying for preconditioning see the LISA-U2 series Data Sheet [1] and u-blox Package Information Guide [21].
LISA-U2 series - System Integration Manual Preheat phase Initial heating of component leads and balls. Residual humidity will be dried out. This preheat phase will not replace prior baking procedures. Temperature rise rate: max 3°C/s If the temperature rise is too rapid in the preheat phase it may cause excessive slumping. Time: 60 – 120 s If the preheat is insufficient, rather large solder balls tend to be generated.
LISA-U2 series - System Integration Manual 4.2.3 Optical inspection After soldering the LISA-U2 modules, inspect the modules optically to verify that the module is properly aligned and centered. 4.2.4 Cleaning Cleaning the soldered modules is not recommended. Residues underneath the modules cannot be easily removed with a washing process. Cleaning with water will lead to capillary effects where water is absorbed in the gap between the baseboard and the module.
LISA-U2 series - System Integration Manual 4.2.10 Casting If casting is required, use viscose or another type of silicone-pottant. The OEM is strongly advised to qualify such processes in combination with the LISA-U2 modules before implementing this in the production. Casting will void the warranty. 4.2.11 Grounding metal covers Attempts to improve grounding by soldering ground cables, wick or other forms of metal strips directly onto the EMI covers is done at the customer's own risk.
LISA-U2 series - System Integration Manual 5 Product Testing 5.1 u-blox in-series production test u-blox focuses on high quality for its products. All units produced are fully tested. Defective units are analyzed in detail to improve the production quality. This is achieved with automatic test equipment, which delivers a detailed test report for each unit.
LISA-U2 series - System Integration Manual Component assembly on the device; it should be verified that: o Communication with host controller can be established o The interfaces between module and device are working o Overall RF performance test of the device including antenna Dedicated tests can be implemented to check the device. For example, the measurement of module current consumption when set in a specified status can detect a short circuit if compared with a “Golden Device” result.
LISA-U2 series - System Integration Manual Wireless Antenna Application Processor Wideband Antenna LISA-U2 series IN Spectrum Analyzer or Power Meter OUT Signal Generator AT Commands ANT TX Application Board Wireless Antenna Application Processor Wideband Antenna LISA-U2 series AT Commands ANT RX Application Board Figure 76: Setup with spectrum analyzer and signal generator for radiated measurement This feature allows the measurement of the transmitter and receiver power levels to check com
LISA-U2 series - System Integration Manual To avoid module damage during transmitter test when good antenna termination is not guaranteed, use a low Power Control Level (i.e. PCL lower or equal to 15). u-blox assumes no responsibilities for module damaging caused by an inappropriate use of this feature. 2. Trigger TX GMSK burst at maximum PCL: o To check if the power supply is correctly assembled and is able to deliver the required current 3.
LISA-U2 series - System Integration Manual Appendix A Migration from LISA-U1 to LISA-U2 series Migrating LISA-U1 series designs to LISA-U2 series modules is a straight forward procedure. Nevertheless there are some points to be considered during the migration. A.1 Checklist for migration Have you chosen the optimal module? For HSDPA category 14, 6-band 3G, Digital Audio Interfaces support, select a LISA-U230 module.
LISA-U2 series - System Integration Manual A.3 Hardware migration A.3.1 Hardware migration from LISA-U1 series to LISA-U2 series modules LISA-U2 series modules have been designed with backward compatibility in mind but some minor differences were unavoidable. These minor differences will however not be relevant for the majority of the LISA-U1 series designs. Clean and stable supply is required by LISA-U2 as by LISA-U1 series: low ripple and low voltage drop must be guaranteed at VCC pins.
LISA-U2 series - System Integration Manual The 5 pins of the SPI / IPC Serial Interface can be configured as GPIOs on LISA-U2 series. 2 The DDC (I C) interface of LISA-U2 series modules can be used to communicate with u-blox GNSS receivers and 2 at the same time to control an external audio codec. The LISA-U2 series module acts as an I C master which can 2 2 communicate to two I C slaves as allowed by I C bus specifications [8].
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description 1 GND Ground GND Ground 2 V_BCKP RTC supply input/output V_BCKP RTC supply input/output 3 4 GND V_INT Ground Digital Interfaces supply output GND V_INT Ground Digital Interfaces supply output 5 RSVD RESERVED pin RSVD RESERVED pin 6 … 8 GND Ground GND Ground 9 DSR UART data set ready output DSR UART data set ready output Circuit 107 (DSR) in ITU-T V.24, 1.8V typ.
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description Remarks for Migration 19 PWR_ON Power-on input PWR_ON Power-on input 20 GPIO1 GPIO GPIO1 GPIO PWR_ON switch-on low pulse time difference: LISA-U1 series: o L-level pulse time = 5 ms min LISA-U2 series: o L-level pulse time = 50 µs min / 80 µs max PWR_ON switch-off low pulse time difference: LISA-U1 series: o Switch-off by PWR_ON not supported LISA-U2 series: o L-level puls
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description Remarks for Migration 23 GPIO3 GPIO GPIO3 GPIO Configurable GPIO, 1.8V typ. LISA-U1 series: o Output driver strength = 4 mA LISA-U2 series: o Output driver strength = 6 mA Functions on all LISA-U series: o Pad disabled o Input / Output o Network Status Indication o GNSS Supply Enable o GNSS Data Ready (default) 24 GPIO4 GPIO GPIO4 GPIO Configurable GPIO, 1.8V typ.
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description Remarks for Migration 42 I2S_TXD LISA-U120, LISA-U130: I2S Tx data output LISA-U100, LISA-U110: RESERVED pin I2S_TXD LISA-U2 series: 1st I2S Tx data output I2S_TXD, 1.8V typ. LISA-U120, LISA-U130: o Output driver strength = 2.
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description Remarks for Migration 52 RSVD RESERVED pin CODEC_CLK LISA-U2 series: Clock output 53 SPK_P LISA-U120, LISA-U130: Differential analog audio output (pos.) LISA-U100, LISA-U110: RESERVED pin I2S1_CLK / GPIO8 LISA-U2 series: 2nd I2S clock input/output / GPIO 54 SPK_N LISA-U120, LISA-U130: Differential analog audio output (neg.
LISA-U2 series - System Integration Manual LISA-U1 series LISA-U2 series No Name Description Name Description Remarks for Migration 58 SPI_SRDY SPI Slave Ready Output SPI_SRDY / GPIO13 SPI Slave Ready Output / GPIO LISA-U1 series: SPI_SRDY, 1.8V typ o Output driver strength = 4 mA LISA-U2 series: SPI_SRDY and configurable GPIO, 1.8V typ.
LISA-U2 series - System Integration Manual A.3.3 Layout comparison LISA-U1 series vs. LISA-U2 series Additional signals keep-out area must be implemented on the top layer of the application board, below LISA-U2 modules, due to GND opening on module bottom layer, as described in Figure 79 and Figure 80. 11.85 mm 5.3 mm 5.25 mm 1.4 mm 1.0 mm PIN 1 Exposed GND on LISA-U1 module bottom layer Signals keep-out area on application board 33.2 mm LISA-U1 bottom side (through module view) 22.
LISA-U2 series - System Integration Manual B Glossary ADC Analog to Digital Converter AP Application Processor AT AT Command Interpreter Software Subsystem, or attention CBCH Cell Broadcast Channel CS Coding Scheme CSD Circuit Switched Data CTS Clear To Send DC Direct Current DCD Data Carrier Detect DCE Data Communication Equipment DCS Digital Cellular System DDC Display Data Channel DSP Digital Signal Processing DSR Data Set Ready DTE Data Terminal Equipment DTM Dual Transfe
LISA-U2 series - System Integration Manual IPC Inter Processor Communication LNA Low Noise Amplifier MCS Modulation Coding Scheme NOM Network Operating Mode PA Power Amplifier PBCCH Packet Broadcast Control Channel PCM Pulse Code Modulation PCS Personal Communications Service PFM Pulse Frequency Modulation PMU Power Management Unit RF Radio Frequency RI Ring Indicator RTC Real Time Clock RTS Request To Send RXD RX Data SAW Surface Acoustic Wave SIM Subscriber Identification
LISA-U2 series - System Integration Manual Related documents [1] u-blox LISA-U2 series Data Sheet, Docu No UBX-13001734 [2] u-blox AT Commands Manual, Docu No UBX-13002752 [3] ITU-T Recommendation V.24, 02-2000. List of definitions for interchange circuits between data terminal equipment (DTE) and data circuit-terminating equipment (DCE). http://www.itu.int/rec/T-REC-V.24-200002-I/en [4] 3GPP TS 27.007 - AT command set for User Equipment (UE) (Release 1999) [5] 3GPP TS 27.
LISA-U2 series - System Integration Manual Revision history Revision Date Name Status / Comments - 21-Oct-2010 sses Initial Release 1 11-Jan-2011 sses Thickness information added.
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