UC20 User Manual UMTS/HSPA Module Series Rev. UC20_User_Manual_V1.4 Date: 2014-10-22 www.quectel.
UMTS/HSPA Module Series UC20 User Manual Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters: Quectel Wireless Solutions Co., Ltd. Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233 Tel: +86 21 5108 6236 Mail: info@quectel.com Or our local office, for more information, please visit: http://www.quectel.com/support/salesupport.
UMTS/HSPA Module Series UC20 User Manual About the Document History Revision Date Author Description 1.0 2013-07-17 Mountain ZHOU Initial Mountain ZHOU 1. 2. 3. 4. 5. Updated USB driver information. Added GNSS contents in Chapter 4. Added GNSS current consumption. Updated GNSS antenna requirements. Released USIM_PRESENCE function. 1. 2. 3. 4. Added UC20-G information. Added AMR-WB feature. Added USB upgrade test points’ diagram. Added reference design of transistor circuit on UART interface.
UMTS/HSPA Module Series UC20 User Manual 4. 5. 1. 2. 3. 4. 1.4 2014-10-22 Mountain ZHOU 5. 6. 7. 8. 9. UC20_Hardware_Design Chapter 3.16.2. Updated power circuit of Figure 6. Updated current consumption. Updated internet protocol features and USB driver. Updated VBAT input voltage range. Updated Chapter 3.6.2, and added VBAT drop figure. Updated antenna requirement in Chapter 5.3.1. Updated current consumption. Updated recommended footprint in Chapter 7.2. Deleted description of UART autobauding.
UMTS/HSPA Module Series UC20 User Manual Contents About the Document ................................................................................................................................... 2 Contents ....................................................................................................................................................... 4 Table Index .....................................................................................................................................
UMTS/HSPA Module Series UC20 User Manual 3.10. UART Interface.................................................................................................................... 39 3.11. USIM Card Interface ............................................................................................................ 42 3.12. USB Interface ...................................................................................................................... 45 3.13. PCM and I2C Interface ......................
UMTS/HSPA Module Series UC20 User Manual 9 Appendix A Reference....................................................................................................................... 78 10 Appendix B GPRS Coding Scheme ................................................................................................. 82 11 Appendix C GPRS Multi-slot Class .................................................................................................. 83 12 Appendix D EDGE Modulation and Coding Scheme ...
UMTS/HSPA Module Series UC20 User Manual Table Index TABLE 1: UC20 SERIES FREQUENCY BANDS .............................................................................................. 12 TABLE 2: UC20 KEY FEATURES ..................................................................................................................... 14 TABLE 3: IO PARAMETERS DEFINITION ........................................................................................................ 20 TABLE 4: PIN DESCRIPTION ........
UMTS/HSPA Module Series UC20 User Manual Figure Index FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 17 FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 19 FIGURE 3: UART SLEEP APPLICATION .........................................................................................................
UMTS/HSPA Module Series UC20 User Manual FIGURE 42: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 73 FIGURE 43: TOP VIEW OF THE MODULE ...................................................................................................... 74 FIGURE 44: BOTTOM VIEW OF THE MODULE .............................................................................................. 74 FIGURE 45: LIQUIDS TEMPERATURE ......................................
UMTS/HSPA Module Series UC20 User Manual 1 Introduction This document defines the UC20 module and describes its hardware interface which are connected with your application and the air interface. This document can help you quickly understand module interface specifications, electrical and mechanical details. Associated with application notes and user guide, you can use UC20 module to design and set up mobile applications easily.
UMTS/HSPA Module Series UC20 User Manual 1.1. Safety Information The following safety precautions must be observed during all phases of the operation, such as usage, service or repair of any cellular terminal or mobile incorporating UC20 module. Manufacturers of the cellular terminal should send the following safety information to users and operating personnel and to incorporate these guidelines into all manuals supplied with the product.
UMTS/HSPA Module Series UC20 User Manual 2 Product Concept 2.1. General Description UC20 is an embedded HSPA+/EDGE engine with Rx-diversity. Its UMTS-based modem provides data connectivity on HSPA+, HSDPA, HSUPA, WCDMA, EDGE, GPRS networks. It can also provide GPS/GLONASS and voice functionality1) for your specific application. UC20 offers a maximum data rate of 14.4Mbps on downlink and 5.76Mbps on uplink in HSPA+/HSPA mode. UC20 also support GPRS/EDGE multi-slot class 12.
UMTS/HSPA Module Series UC20 User Manual 2.2. Directives and Standards The UC20 module is designed to comply with the FCC statements. FCC ID: XMR-201510UC20 The Host system using UC20, should have label indicated FCC ID: XMR-201510UC20. 2.2.1. FCC Statement 1. This device complies with Part 15 of the FCC rules. Operation is subject to the following conditions: a) This device may not cause harmful interference.
UMTS/HSPA Module Series UC20 User Manual 2.3. Key Features The following table describes the detailed features of UC20 module. Table 2: UC20 Key Features Feature Details Power Supply Supply voltage: 3.3V~4.3V Typical supply voltage: 3.8V Frequency Bands UC20-G: GSM850/900/1800/1900, UMTS800/850/900/1900/2100 Transmission Data HSPA R6: Max 14.4Mbps (DL)/Max 5.76Mbps (UL) UMTS R99: Max 384kbps (DL)/Max 384kbps (UL) EDGE: Max 236.8kbps (DL)/Max 236.8kbps (UL) GPRS: Max 85.6kbps (DL)/Max 85.
UMTS/HSPA Module Series UC20 User Manual for PPP connections. SMS Text and PDU mode Point to point MO and MT SMS cell broadcast SMS storage: ME by default USIM Interface Support USIM/SIM card: 1.8V, 3.0V Audio Features Support one digital audio interface: PCM interface GSM: HR/FR/EFR/AMR/AMR-WB WCDMA: AMR/AMR-WB Echo cancellation and noise suppression PCM Interface Used for audio function with external codec. Support 8-bit A-law, μ-law and 16-bit linear data formats.
UMTS/HSPA Module Series UC20 User Manual Antenna Interface Include main GSM/UMTS antenna, UMTS diversity antenna and GNSS antenna. Physical Characteristics Size: 32.0±0.15 × 29.0±0.15 × 2.5±0.2mm Weight: approx. 4.9g Temperature Range Normal operation: -35°C ~ +75°C Restricted operation: -40°C ~ -35°C and +75°C ~ +85°C 2) Storage temperature: -45°C ~ +90°C Firmware Upgrade USB interface (by default) or main UART interface. RoHS All hardware components are fully compliant with EU RoHS directive.
UMTS/HSPA Module Series UC20 User Manual ANT_GNSS RF Switch GSM VBAT_RF PCM WAKEUP_IN W_DISABLE# RF Switch Baseband RF Transceiver GNSS Receiver UART USB VBAT_BB VDD_EXT VDD_2V85 RESET_N ANT_DIV DDR RAM/ NAND Flash SLEEP_IND PWRKEY ANT_MAIN UMTS Power Management Unit ADC USIM Status VRTC 19.2MHz 32kHz Figure 1: Functional Diagram 2.5.
UMTS/HSPA Module Series UC20 User Manual 3 Application Interface 3.1. General Description UC20 is equipped with a 72-pin 1.3mm pitch SMT pads plus 40-pin other pads that connect to cellular application platform.
UMTS/HSPA Module Series UC20 User Manual 3.2. Pin Assignment The following figure shows the pin assignment of the UC20 module.
UMTS/HSPA Module Series UC20 User Manual 3.3. Pin Description The following tables show the UC20’s pin definition. Table 3: IO Parameters Definition Type Description IO Bidirectional input/output DI Digital input DO Digital output PI Power input PO Power output AI Analog input AO Analog output OD Open drain Table 4: Pin Description Power Supply Pin Name VBAT_BB VBAT_RF Pin No. 59,60 57,58 I/O Description DC Characteristics Comment PI Power supply for module baseband part.
UMTS/HSPA Module Series UC20 User Manual VDD_2V85 34 GND 8,9,19,36, 46,48,50~ 54,56,72, 85~112 PO external circuit. IOmax = 20mA Provide 2.85V for external circuit. Vnorm = 2.85V IOmax = 100mA external GPIO’s pull up circuits. Reserved for future application. If unused, keep it open. Ground. Turn On/Off Pin Name PWRKEY RESET_N Pin No. Description DC Characteristics Comment Turn on/off the module. RPU ≈ 200kΩ VIHmax = 2.1V VIHmin = 1.3V VILmax = 500mV Pull-up to 1.8V internally.
UMTS/HSPA Module Series UC20 User Manual USB_DP USB_DM 69 70 IO USB differential data bus. Compliant with USB 2.0 standard specification. Require differential impedance of 90Ω. IO USB differential data bus. Compliant with USB 2.0 standard specification. Require differential impedance of 90Ω. I/O Description DC Characteristics Comment USIM Interface Pin Name Pin No. USIM_GND 10 Specified ground for USIM card. For 1.8V USIM: Vmax = 1.9V Vmin = 1.
UMTS/HSPA Module Series UC20 User Manual VOHmin = 2.55V USIM_PRE SENCE VILmin = -0.3V VILmax = 0.6V VIHmin = 1.2V VIHmax = 2.0V 1.8V power domain. If unused, keep it open. 13 DI USIM card insertion detection. Pin No. I/O Description DC Characteristics Comment AI General purpose analog to digital converter. Voltage range: 0.2V to 2.1V If unused, keep it open. AI General purpose analog to digital converter. Voltage range: 0.2V to 4.2V If unused, keep it open.
UMTS/HSPA Module Series UC20 User Manual VIHmax = 2.0V Debug UART Interface Pin Name DBG_TXD Pin No. 12 I/O DO Description DC Characteristics Comment Transmit data. VOLmax = 0.45V VOHmin = 1.35V 1.8V power domain. If unused, keep it open. 1.8V power domain. If unused, keep it open. 11 DI Receive data. VILmin = -0.3V VILmax = 0.6V VIHmin = 1.2V VIHmax = 2.0V Pin Name Pin No. I/O Description DC Characteristics Comment ANT_DIV 35 AI Diversity antenna.
UMTS/HSPA Module Series UC20 User Manual AGND 22 Reserved for analog ground. Ground. If unused, connect this pin to ground. Description DC Characteristics Comment I2C Interface Pin Name I2C_SCL I2C_SDA Pin No. 41 42 I/O I2C serial clock. External pull-up resistor is required. 1.8V only. If unused, keep it open. OD I2C serial data. External pull-up resistor is required. 1.8V only. If unused, keep it open. I/O Description DC Characteristics Comment Sleep mode control. VILmin = -0.
UMTS/HSPA Module Series UC20 User Manual 3.4. Operating Modes The table below briefly summarizes the various operating modes referred to in the following chapters. Table 5: Overview of Operating Modes Mode Details GSM Idle Software is active. The module has registered to the GSM network and is ready to send and receive data. GSM Talk/Data GSM connection is ongoing.
UMTS/HSPA Module Series UC20 User Manual Sleep Mode In this mode, the current consumption of the module will be reduced to the minimal level. During this mode, the module can still receive paging message, SMS, voice call and TCP/UDP data from the network normally. Power Down Mode In this mode, the power management unit shuts down the power supply. Only the power supply for RTC remains. Software is not active. The serial interface is not accessible.
UMTS/HSPA Module Series UC20 User Manual match shown in dotted line between module and processor. Driving DTR to low level will wake up the module. 3.5.1.2. USB Application with Suspend Function If application processor communicates with module via USB interface, and processor supports USB suspend function, the following preconditions can let the module enter into the sleep mode. Execute AT command AT+QSCLK=1 to enable the sleep mode.
UMTS/HSPA Module Series UC20 User Manual The following figure shows the connection between the module and application processor. Module Processor GPIO USB_VBUS Power Switch VDD USB_DP USB_DP USB_DM USB_DM RI EINT AP_READY GPIO GND GND Figure 5: USB Sleep Application without Suspend Function Supply power to USB_VBUS will wake up the module. In sleep mode, module can still receive paging, SMS, voice call and TCP/UDP data from network, but the UART port is not accessible.
UMTS/HSPA Module Series UC20 User Manual NOTES 1. The W_DISABLE# control function is disabled in firmware by default. It can be enabled by AT command AT+QCFG=“airplanecontrol”. Refer to document [1]. 2. When the module is in sleep mode, the W_DISABLE# control is invalid. Please be sure to wake the module up first. 3. GNSS function is still available when RF function is disabled. 3.6. Power Supply 3.6.1. Power Supply Pins UC20 provides four VBAT pins dedicated to connect with the external power supply.
UMTS/HSPA Module Series UC20 User Manual burst burst ≤ 2.0A Current VBAT < 400mV Min. 3.3V Figure 6: Voltage Drop during Transmitting Burst To decrease voltage drop, a bypass capacitor of about 100µF with low ESR should be used. Multi-layer ceramic chip (MLCC) capacitor can provide the best combination of low ESR. The main power supply from an external application has to be a single voltage source and expanded to two sub paths with star structure.
UMTS/HSPA Module Series UC20 User Manual 2A at least. If the voltage drop between the input and output is not too high, it is suggested to use a LDO to supply power for module. If there is a big voltage difference between the input source and the desired output (VBAT), a buck converter is preferred to be used as a power supply. The following figure shows a reference design for +5V input power source. The designed output for the power supply is about 3.8V and the maximum load current is 3A.
UMTS/HSPA Module Series UC20 User Manual reference circuit is illustrated in the following figure. PWRKEY ≥ 100ms 4.7K Turn on pulse 47K Figure 9: Turn on the Module Using Driving Circuit The other way to control the PWRKEY is using a button directly. A TVS component is indispensable to be placed nearby the button for ESD protection. When pressing the key, electrostatic strike may generate from finger. A reference circuit is showed in the following figure.
UMTS/HSPA Module Series UC20 User Manual 1 VBAT ≥ 100ms VIH ≥ 1.3V PWRKEY VIL ≤ 0.5V RESET_N 1.3 ~ 1.9s STATUS (OD) ≥ 5s UART Inactive Active ≥ 5s USB Inactive Active Figure 11: Timing of Turning on Module NOTE Make sure that VBAT is stable before pulling down PWRKEY pin. The time between them is recommended to be 30ms. 3.7.2. Turn off Module The following procedures can be used to turn off the module: Normal power down procedure: Turn off the module using the PWRKEY pin.
UMTS/HSPA Module Series UC20 User Manual VBAT ≥ 0.6s Log off network about 1s to 60s PWRKEY STATUS (OD) Module Status Power-down procedure RUNNING OFF Figure 12: Timing of Turning off Module During power-down procedure, module will send out URC “NORMAL POWER DOWN” via URC port first, then log off network and save important data. After logging off, module sends out “POWERED DOWN” and shut down the internal power supply.
UMTS/HSPA Module Series UC20 User Manual The uncritical voltage is 3.3V to 4.35V, If the voltage > 4.35V or < 3.3V the module would automatically shut down itself. If the voltage < 3.3V, the following URC will be presented: +QIND: “vbatt”,-2 If the voltage > 4.35V, the following URC will be presented: +QIND: “vbatt”,2 NOTE The value of voltage threshold can be revised by command AT+QCFG=“vbatt”, refer to document [1] for details. 3.8. Reset the Module The RESET_N can be used to reset the module.
UMTS/HSPA Module Series UC20 User Manual RESET_N ≥ 150ms 4.7K Reset pulse 47K Figure 13: Reference Circuit of RESET_N by Using Driving Circuit S2 RESET_N TVS Close to S2 Figure 14: Reference Circuit of RESET_N by Using Button The reset scenario is illustrated as the following figure. VBAT ≥ 5s 150ms VIH ≥ 1.3V RESET_N VIL ≤ 0.
UMTS/HSPA Module Series UC20 User Manual 3.9. RTC Backup The RTC (Real Time Clock) can be powered by an external power source through the pin VRTC when the module is powered down and there is no power supply for the VBAT. It is also available to charge the battery on the VRTC when module is turned on. You can choose rechargeable battery, capacitor or non-rechargeable battery depending on different applications. The following figures show the various sample circuits for VRTC backup.
UMTS/HSPA Module Series UC20 User Manual VRTC R RTC Core Large Capacitance Capacitor Module Figure 18: RTC Supply from Capacitor 3.10. UART Interface The module provides two UART interfaces: main UART interface and debug UART interface. The following shows the different features. Main UART interface supports 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600bps baud rate, the default is 115200bps. This interface can be used for data transmission, AT communication or firmware upgrade.
UMTS/HSPA Module Series UC20 User Manual RTS 65 DI Request to send. 1.8V power domain. DTR 66 DI Data terminal ready. 1.8V power domain. TXD 67 DO Transmit data. 1.8V power domain. RXD 68 DI Receive data. 1.8V power domain. Table 10: Pin Definition of the Debug UART Interface Pin Name Pin No. I/O Description Comment DBG_TXD 12 DO Transmit data. 1.8V power domain. DBG_RXD 11 DI Receive data. 1.8V power domain. The logic levels are described in the following table.
UMTS/HSPA Module Series UC20 User Manual VDD_EXT VCCA VCCB 0.1uF VDD_3.3V 0.1uF OE GND RI A1 B1 RI_3.3V DCD A2 B2 DCD_3.3V CTS A3 B3 CTS_3.3V RTS A4 B4 RTS_3.3V DTR A5 B5 DTR_3.3V TXD A6 B6 TXD_3.3V A7 B7 A8 B8 RXD 51K Translator RXD_3.3V 51K Figure 19: Reference Circuit with Translator Chip Please visit http://www.ti.com for more information. Another example with transistor translation circuit is shown as below.
UMTS/HSPA Module Series UC20 User Manual 3.3V OE VCCB VCC GND DCD TXD CTS RI DCD_1.8V TXD_1.8V DCD_3.3V TXD_3.3V DIN1 DIN2 DOUT1 DOUT2 CTS_1.8V RI_1.8V CTS_3.3V RI_3.3V DOUT3 DOUT4 DOUT5 RXD DTR RTS GND RXD_1.8V DTR_1.8V RTS_1.8V GND RXD_3.3V DTR_3.3V RTS_3.3V DIN3 DIN4 DIN5 R1OUTB ROUT1 ROUT2 ROUT3 5 GND 1 DCD 2 RXD 8 CTS 9 RI 6 DSR RIN1 RIN2 RIN3 3 TXD 4 DTR 7 RTS VDD_EXT VCCA 3.
UMTS/HSPA Module Series UC20 User Manual USIM_CLK 16 DO Clock signal of USIM card. USIM_RST 17 DO Reset signal of USIM card. USIM_PRES ENCE 13 DI USIM card insertion detection. USIM_GND 10 1.8V power domain. Specified ground for USIM card. The following figure shows the reference design of the 8-pin USIM card.
UMTS/HSPA Module Series UC20 User Manual USIM_VDD USIM_GND Module USIM_VDD USIM_RST USIM_CLK USIM_DATA 15K 100nF USIM Connector VCC RST CLK 22R GND VPP IO 22R 22R 33pF 33pF 33pF GND GND Figure 23: Reference Circuit of the 6 Pin USIM Card In order to enhance the reliability and availability of the USIM card in your application, please follow the following criterion in the USIM circuit design: Keep layout of USIM card as close as possible to the module.
UMTS/HSPA Module Series UC20 User Manual 3.12. USB Interface UC20 contains one integrated Universal Serial Bus (USB) transceiver which complies with the USB 2.0 specification and supports high speed (480 Mbps), full speed (12 Mbps) and low speed (1.5 Mbps) mode. The USB interface is primarily used for AT command, data transmission, GNSS NMEA sentences output, software debug and firmware upgrade. The following table shows the pin definition of USB interface. Table 13: USB Pin Description Pin Name Pin No.
UMTS/HSPA Module Series UC20 User Manual It is important to route the USB signal traces as differential pairs with total grounding. The impedance of USB differential trace is 90ohm. Do not route signal traces under crystals, oscillators, magnetic devices and RF signal traces. It is important to route the USB differential traces in inner-layer with ground shielding not only upper and lower layer but also right and left side.
UMTS/HSPA Module Series UC20 User Manual In primary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge; the PCM_SYNC falling edge represents the MSB. In this mode, PCM_CLK supports 128, 256, 512, 1024, 2048 and 4096kHz for different speech codec. In auxiliary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising edge; while the PCM_SYNC rising edge represents the MSB.
UMTS/HSPA Module Series UC20 User Manual The following table shows the pin definition of PCM and I2C interface which can be applied on audio codec design. Table 14: Pin Definition of PCM and I2C Interface Pin Name Pin No. I/O Description Comment PCM_IN 24 DI PCM data input. 1.8V power domain. PCM_OUT 25 DO PCM data output. 1.8V power domain. PCM_SYNC 26 IO PCM data frame sync signal. 1.8V power domain. PCM_CLK 27 IO PCM data bit clock. 1.8V power domain.
UMTS/HSPA Module Series UC20 User Manual NOTES 1. 2. It is recommended to reserved RC (R=22Ω, C=22pF) circuit on the PCM lines, especially for PCM_CLK. UC20 works as a master device pertaining to I2C interface. 3.14. ADC Function The module provides two analog-to-digital converters (ADC) to digitize the analog signal to 15-bit digital data such as battery voltage, temperature and so on. Using AT command AT+QADC=0 can read the voltage value on ADC0 pin.
UMTS/HSPA Module Series UC20 User Manual 3.15. Network Status Indication The network indication pins can be used to drive a network status indicator LED. The module provides two pins which are NET_MODE and NET_STATUS. The following tables describe pin definition and logic level changes in different network status. Table 17: Pin Definition of Network Indicator Pin Name Pin No. I/O Description Comment NET_MODE 5 DO Indicate the module network registration mode. 1.
UMTS/HSPA Module Series UC20 User Manual Figure 29: Reference Circuit of the Network Indicator 3.16. Operating Status Indication 3.16.1. STATUS The STATUS pin is an open drain output for indicating the module operation status. You can connect it to a GPIO of DTE with pulled up, or as LED indication circuit as below. When the module is turned on normally, the STATUS will present the low state. Otherwise, the STATUS will present high-impedance state.
UMTS/HSPA Module Series UC20 User Manual Table 20: Pin Definition of SLEEP_IND Pin Name SLEEP_IND Pin No. I/O 3 DO Description Comment Indicate the sleep status. 1.8V power domain. Outputs high level when the module is in sleep mode. A reference circuit is shown in the following figure. VBAT Module 2.2K 4.
UMTS/HSPA Module Series UC20 User Manual As to GSM network, the paging period time can be calculated with the following formula. T= 4.615ms × 51 × DRX As to WCDMA network, the paging period time can be calculated with the following formula. T= 10ms × 2DRX DRX (Discontinuous Reception) is a value from 2 to 9 in GSM network, resulting in paging intervals 470.6ms to 2118.42ms, and a value from 6 to 9 in WCDMA network, resulting in paging intervals from 640ms to 5120ms. 3.17.
UMTS/HSPA Module Series UC20 User Manual 4 GNSS Receiver 4.1. General Description UC20 includes a fully integrated global navigation satellite system solution that supports the latest generation gpsOne Gen8 of Qualcomm (GPS and GLONASS). Compared with GPS only, dual systems increase usable constellation, reduce coverage gaps and TTFF, and increase positioning accuracy, especially in rough urban environments.
UMTS/HSPA Module Series UC20 User Manual 4.2. GNSS Performance The following table shows UC20 GNSS performance. Table 22: GNSS Performance Parameter Description Conditions Typ. Unit Autonomous -144 dBm With LNA -147 dBm Autonomous -154 dBm With LNA -159 dBm Autonomous -155 dBm With LNA -161 dBm Autonomous 32 s XTRA enabled 22 s Autonomous 29 s XTRA enabled 3 s Autonomous 2.5 s XTRA enabled 2 s Autonomous @open sky <1.
UMTS/HSPA Module Series UC20 User Manual 4.3. Layout Guideline The following layout guideline should be taken into account in your design. Maximize the distance between the GNSS antenna and the main GSM/UMTS antenna. Noisy digital circuits such as the USIM card, USB interface, Camera module, Display connector and SD card should be away from the antenna. Use ground vias around the GNSS trace and sensitive analog signal traces to provide coplanar isolation and protection.
UMTS/HSPA Module Series UC20 User Manual 5 Antenna Interface UC20 antenna interface includes a main GSM/UMTS antenna, an optional UMTS Rx-diversity antenna, which is used to improve UMTS’s receiving performance, and a GNSS antenna. The antenna interface has an impedance of 50Ω. 5.1. GSM/UMTS Antenna Interface 5.1.1. Pin Definition The main antenna and UMTS Rx-diversity antenna pins definition are shown below. Table 23: Pin Definition of the RF Antenna Pin Name Pin No.
UMTS/HSPA Module Series UC20 User Manual UMTS 900 925 ~ 960 880 ~ 915 MHz UMTS 850 869 ~ 894 824 ~ 849 MHz UMTS 800 875 ~ 885 830 ~ 840 MHz 5.1.3. Reference Design The reference design of main antenna and UMTS Rx-diversity antenna is shown as below. It should reserve a π-type matching circuit for better RF performance. The capacitors are not mounted by default.
UMTS/HSPA Module Series UC20 User Manual 5.2. GNSS Antenna Interface The following tables show the GNSS antenna pin definition and frequency specification. Table 25: Pin Definition of GNSS Antenna Pin Name Pin No. I/O Description Comment ANT_GNSS 47 AI GNSS antenna 50Ω impedance Table 26: GNSS Frequency Type Frequency Unit GPS 1575.42±1.023 MHz GLONASS 1597.5 ~ 1605.8 MHz 5.2.1.
UMTS/HSPA Module Series UC20 User Manual 5.2.2. Reference Design for Active Antenna VDD Active antenna 10R 0.1uF 47nH 100pF ANT_GNSS NM NM Module Figure 35: Reference Circuit of GNSS Active Antenna NOTES 1. 2. 3. 4. 5. You can choose the corresponding reference circuit above according to your demands on antenna circuit design. MAX2659 is the recommended LNA chip. You can disable LNA to save power with one GPIO shown in above figure. Pay attention to this pin’s voltage level.
UMTS/HSPA Module Series UC20 User Manual Table 27: Antenna Requirements Type Requirements GNSS Frequency range: 1565~1607 MHz Polarization: RHCP or linear VSWR: < 2 (Typ.) Passive antenna gain: > 0dBi Active antenna noise figure: < 1.5dB Active antenna gain: > -2dBi Active antenna embedded LNA gain: 20dB (Typ.) Active antenna total gain: > 18dBi (Typ.
UMTS/HSPA Module Series UC20 User Manual You can use U.FL-LP serial connector listed in the following figure to match the UF.L-R-SMT. Figure 37: Mechanicals of UF.L-LP Connectors The following figure describes the space factor of mated connector. Figure 38: Space Factor of Mated Connector (Unit: mm) For more details, please visit http://www.hirose.com.
UMTS/HSPA Module Series UC20 User Manual 6 Electrical, Reliability Characteristics and Radio 6.1. Absolute Maximum Ratings Absolute maximum ratings for power supply and voltage on digital and analog pins of module are listed in the following table: Table 28: Absolute Maximum Ratings Parameter Min. Max. Unit VBAT_RF/VBAT_BB -0.3 4.7 V USB_VBUS -0.3 5.5 V Peak Current of VBAT_BB 0 0.8 A Peak Current of VBAT_RF 0 1.8 A Voltage at Digital Pins -0.3 2.3 V Voltage at ADC0 0 2.
UMTS/HSPA Module Series UC20 User Manual Parameter Description Conditions Min. Typ. Max. Unit 400 mV 1.8 2.0 A 5.0 5.25 V drop, ripple and spikes. Voltage drop during transmitting burst Maximum power control level on GSM850 and EGSM900. IVBAT Peak supply current (during transmission slot) Maximum power control level on GSM850 and EGSM900. USB_VBUS USB detection 3.0 6.3. Operating Temperature The operating temperature is listed in the following table.
UMTS/HSPA Module Series UC20 User Manual Table 31: The Module Current Consumption Parameter Description Conditions Typ. Unit OFF state supply current Power down 45 uA 3.6 @DRX=2 mA 1.5 @DRX=9 mA 3.7 @DRX=2 mA 1.6 @DRX=9 mA Idle (USB disconnected) 15.0 @DRX=2 mA Idle (USB connected) 32.0 @DRX=2 mA 2.9 @DRX=6 mA 1.1 @DRX=9 mA 3.0 @DRX=6 mA 1.2 @DRX=9 mA Idle (USB disconnected) 15.0 @DRX=6 mA Idle (USB connected) 34.
UMTS/HSPA Module Series UC20 User Manual EDGE data transfer (GNSS off) UC20_Hardware_Design DCS1800 4DL/1UL PCL=0 204 mA DCS1800 3DL/2UL PCL=0 299 mA DCS1800 2DL/3UL PCL=0 368 mA DCS1800 1DL/4UL PCL=0 432 mA PCS1900 1DL/1UL PCL=0 238 mA PCS1900 4DL/1UL PCL=0 247 mA PCS1900 3DL/2UL PCL=0 256 mA PCS1900 2DL/3UL PCL=0 467 mA PCS1900 1DL/4UL PCL=0 572 mA GSM850 1DL/1UL PCL=8 190 mA GSM850 4DL/1UL PCL=8 210 mA GSM850 3DL/2UL PCL=8 306 mA GSM850 2DL/3UL PCL=8 400 mA GSM85
UMTS/HSPA Module Series UC20 User Manual PCS1900 3DL/2UL PCL=2 298 mA PCS1900 2DL/3UL PCL=2 401 mA PCS1900 1DL/4UL PCL=2 503 mA UMTS Band I HSDPA @max power 557 mA UMTS Band I HSUPA @max power 542 mA UMTS Band II HSDPA @max power 549 mA UMTS Band II HSUPA @max power 536 mA UMTS Band V HSDPA @max power 593 mA UMTS Band V HSUPA @max power 576 mA UMTS Band VI HSDPA @max power 530 mA UMTS Band VI HSUPA @max power 493 mA UMTS Band VIII HSDPA @max power 539 mA UMTS Band VIII H
UMTS/HSPA Module Series UC20 User Manual NOTE GNSS tracking current is tested in the following conditions: For Cold Start, 10 minutes after First Fix. For Hot Start, 15 seconds after First Fix. 6.5. RF Output Power The following table shows the RF output power of UC20 module. Table 32: Conducted RF Output Power Frequency Max. Min.
UMTS/HSPA Module Series UC20 User Manual 6.6. RF Receiving Sensitivity The following table shows the conducted RF receiving sensitivity of UC20 module. Table 33: Conducted RF Receiving Sensitivity Frequency Receive Sensitivity (Typ.) GSM850 -108.5dBm EGSM900 -108.5dBm DCS1800 -108dBm PCS1900 -108dBm UMTS 2100 -110dBm UMTS 1900 -110dBm UMTS 900 -110dBm UMTS 850 -110dBm UMTS 800 -110dBm 6.7.
UMTS/HSPA Module Series UC20 User Manual 7 Mechanical Dimensions This chapter describes the mechanical dimensions of the module. All dimensions are measured in mm. 7.1. Mechanical Dimensions of the Module (29+/-0.15) (32+/-0.
UMTS/HSPA Module Series UC20 User Manual 3.2 3.4 3.2 3.4 3.2 3.4 4.8 29.0 32.
UMTS/HSPA Module Series UC20 User Manual Figure 41: Bottom Pads Dimensions (Bottom View) UC20_Hardware_Design Confidential / Released 72 / 84
UMTS/HSPA Module Series UC20 User Manual 7.2. Footprint of Recommendation 22.1 3.45 3.4 1.9 6.45 6.8 6.16 4.6 29.0 4.4 7.8 3 9.04 2 9.3 4.8 2.5 1.0 1.9 13 Keepout area 0.8 1.3 Figure 42: Recommended Footprint (Top View) NOTES 1. 2. Pads 73~84 at the bottom center of module cannot be designed. And keep out the areas shown in pink on the above figure in the host PCB. In order to maintain the module, keep about 3mm between the module and other components in the host PCB.
UMTS/HSPA Module Series UC20 User Manual 7.3. Top View of the Module Figure 43: Top View of the Module 7.4.
UMTS/HSPA Module Series UC20 User Manual 8 Storage and Manufacturing 8.1. Storage UC20 is stored in the vacuum-sealed bag. The restriction of storage condition is shown as below. Shelf life in sealed bag is 12 months at < 40ºC/90%RH. After this bag is opened, devices that will be subjected to reflow solder or other high temperature process must be: Mounted within 72 hours at factory conditions of ≤ 30ºC/60%RH. Stored at < 10% RH.
UMTS/HSPA Module Series UC20 User Manual It is suggested that peak reflow temperature is 235 ~ 245ºC (for SnAg3.0Cu0.5 alloy). Absolute max reflow temperature is 260ºC. To avoid damage to the module when it was repeatedly heated, it is suggested that the module should be mounted after the first panel has been reflowed. The following picture is the actual diagram which we have operated.
.1 0 .5 ±0 0.35± 0.05 29.3± 0.15 30.3± 0.15 1 44.00± 0.3 20.20± 0.15 44.00± 0.1 2.00± 0.1 4.00± 0.1 30.3± 0.15 1.75± 0.1 UMTS/HSPA Module Series UC20 User Manual 4.2± 0.15 3.1± 0.15 32.5± 0.15 33.5± 0.15 32.5± 0.15 33.5± 0.15 48.5 Cover tape 13 100 Direction of feed 44.5+0.20 -0.
UMTS/HSPA Module Series UC20 User Manual 9 Appendix A Reference Table 35: Related Documents SN Document Name Remark [1] Quectel_UC20_AT_Commands_Manual UC20 AT Commands Manual [2] Quectel_UC20_EVB_User_Guide UC20 EVB User Guide [3] Quectel_UC20_Reference_Design UC20 Reference Design [4] Quectel_UC20&M10_Reference_Design UC20 and M10 Compatible Reference Design [5] Quectel_UC20&M10_Compatible_Design UC20 and M10 Compatible Design [6] Quectel_Module_Secondary_SMT_User_Guide Module Secon
UMTS/HSPA Module Series UC20 User Manual CTS Clear To Send DCE Data Communications Equipment (typically module) DRX Discontinuous Reception DTE Data Terminal Equipment (typically computer, external controller) DTR Data Terminal Ready DTX Discontinuous Transmission EFR Enhanced Full Rate EGSM Extended GSM900 band (includes standard GSM900 band) ESD Electrostatic Discharge FR Full Rate GLONASS GLObalnaya NAvigatsionnaya Sputnikovaya Sistema, the Russian Global Navigation Satellite System
UMTS/HSPA Module Series UC20 User Manual MS Mobile Station (GSM engine) MT Mobile Terminated PAP Password Authentication Protocol PBCCH Packet Switched Broadcast Control Channel PCB Printed Circuit Board PDU Protocol Data Unit PPP Point-to-Point Protocol PSK Phase Shift Keying QAM Quadrature Amplitude Modulation QPSK Quadrature Phase Shift Keying RF Radio Frequency RHCP Right Hand Circularly Polarized RMS Root Mean Square (value) RTC Real Time Clock Rx Receive SIM Subscriber
UMTS/HSPA Module Series UC20 User Manual Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum Input Voltage Value VImin Absolute Minimum Input Voltage Value VOHmax Maximum Output High Level Voltage Value VOHmin Minimum Output High Level Voltage Value VOLmax Maximum Output Low Level Voltage Value VOLmin Minimum
UMTS/HSPA Module Series UC20 User Manual 10 Appendix B GPRS Coding Scheme Table 37: Description of Different Coding Schemes USF Pre-coded USF Radio Block excl.USF and BCS BCS Tail Coded Bits Punctured Bits Data Rate Kb/s 1/2 3 3 181 40 4 456 0 9.05 CS-2 2/3 3 6 268 16 4 588 132 13.4 CS-3 3/4 3 6 312 16 4 676 220 15.6 CS-4 1 3 12 428 16 - 456 - 21.
UMTS/HSPA Module Series UC20 User Manual 11 Appendix C GPRS Multi-slot Class Twenty-nine classes of GPRS multi-slot modes are defined for MS in GPRS specification. Multi-slot classes are product dependant, and determine the maximum achievable data rates in both the uplink and downlink directions. Written as 3+1 or 2+2, the first number indicates the amount of downlink timeslots, while the second number indicates the amount of uplink timeslots.
UMTS/HSPA Module UC20 Hardware Design 12 Appendix D EDGE Modulation and Coding Scheme Table 39: EDGE Modulation and Coding Scheme Coding Scheme Modulation Coding Family 1 Timeslot 2 Timeslot 4 Timeslot CS-1: GMSK / 9.05kbps 18.1kbps 36.2kbps CS-2: GMSK / 13.4kbps 26.8kbps 53.6kbps CS-3: GMSK / 15.6kbps 31.2kbps 62.4kbps CS-4: GMSK / 21.4kbps 42.8kbps 85.6kbps MCS-1 GMSK C 8.80kbps 17.60kbps 35.20kbps MCS-2 GMSK B 11.2kbps 22.4kbps 44.8kbps MCS-3 GMSK A 14.
