User's Manual

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Table Of Contents

Rev: 0

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Low power Audio Bluetooth™ Module with antenna F2M03ALA

Preliminary datasheet

Features

•

Fully qualified end product with

Bluetooth™ v2.0+EDR, CE and FCC

•

Low power consumption

•

Integrated high output antenna

•

Transmit power up to +4dBm (class2)

•

Range up to 100m (line of sight)

BLUETOOTH is a trademark owned by

Bluetooth SIG, Inc., U.S.A. and licensed to Free2move

•

Piconet and Scatternet capability,

support for up to 7 slaves

•

Require only few external components

•

Industrial temperature range -40

C to +85

•

Serial interface up to 3 Mbps

•

Extensive digital and analog I/O interface

•

15-bit mono audio codec

•

Analogue and digital audio interface

•

Low power modes

•

Surface mountable, physical size: 24x13 mm

•

Fully footprint compatible with F2M03AC2

•

RoHS compliant

Applications

•

Headsets

•

Automotive hands-free kits

•

Industrial and domestic appliances

•

Medical systems

•

Automotive applications

•

Stand-alone sensors

•

Embedded systems

•

Cordless headsets

•

Handheld, laptop and desktop computers

• Mobile phones

General Description

F2M03ALA is a low power embedded

Bluetooth™ v2.0+EDR audio module with an on

board antenna, integrated audio codec and

amplifier. The module fully Bluetooth™ qualified

as an end product requiring no additional

qualification. With a transmit power of up to +4

dBm and receiver sensibility of down to –86 dBm

combined with audio codec and low power

consumption the F2M03ALA is suitable for the

most demanding audio applications. The module

is certified according to CE and FCC, which give

fast and easy Plug-and-Go implementation and

short time to market.

The standard firmware for F2M03ALA is the

exceedingly reliable and powerful easy-to-use

Wireless UART v4 firmware implementing the

Bluetooth™ Serial Port Profile (SPP).

Summary of content (50 pages)

PAGE 1
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Features • • • • • • • • • • • • • • • • Fully qualified end product with Bluetooth™ v2.
PAGE 2
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Table of contents 1 Device pinout .........................................................................................................................3 2 Device terminal functions .....................................................................................................4 3 Electrical Characteristics ......................................................................................................
PAGE 3
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 1 Device pinout 39 NC 38 NC NC 37 NC 36 35 GND GND 34 GND PIO[9] PIO[2] PIO[3] PIO[8] RESET SPI_MOSI SPI_MISO SPI_CSB SPI_CLK PIO[4] PIO[5] 33 32 31 30 29 28 27 26 25 24 23 22 13 14 15 16 17 18 19 20 21 GND USB + USB PCM_CLK PCM_SYNC PCM_IN PCM_OUT PIO[6] PIO[7] 1 SPKR2 SPKR+ 3 MIC4 MIC+ 5 AUX_DAC 6 AIO[0] 7 GND 8 RTS 9 RX 10 TX 11 CTS 12 VDD Pinout of the F2M03ALA seen from the component side [TOP VIEW] © 2
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 2 Device terminal functions Power supply GND Pin Pin type Description 7, 13, 33, 34, VSS 35 36,37,38,39 NC NC VDD 12 Analog I/O AUX_DAC AIO(0) 28 SPI_MISO 26 SPI_CSB 25 SPI_CLK SPI_MOSI 24 27 UART Pin type Description Analogue Voltage DAC output Bi-directional Programmable input/output line Pin type Description CMOS input with weak internal pull-up Reset if low.
PAGE 5
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 3 Electrical Characteristics Absolute Maximum Ratings Rating Storage Temperature Breakdown supply voltage Min Max -40°C -0.4V +105°C 5.60V Recommended Operating Conditions* Rating Operating temperature range Supply voltage Min Max -40°C 2.2V +85°C 4.2V *F2M03ALA meet the Bluetooth v2.0+EDR specification when used in the recommended operating condition.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Auxiliary ADC Auxiliary ADC, 8-bit resolution Resolution Input voltage range (LSB size = 1.8/255= 7.1mV) Accuracy (Guaranteed monotonic) Offset Gain Error Input Bandwidth Conversion time Sample rate* INL DNL Min Typ Max Unit 0 - 8 1.8 Bits V -1 0 -1 -0.8 - 100 2.5 - 1 1 1 0.8 700 LSB LSB LSB % KHz µS Sample/s *The ADC is accessed through the VM function.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 3.1 Power Consumption VDD=3.1V Typical Average Current Consumption Temperature = +20°C Output Power = 0dBm Operation Mode Connection Type UART Rate (kbps) Average Unit Page scan Inquiry and page scan - 115.2 115.2 0.49 0.83 mA mA ACL No traffic ACL With file transfer ACL No traffic Master Master Slave 115.2 115.2 115.2 4.1 12 17 mA mA mA ACL With file transfer ACL 40ms sniff ACL 1.
PAGE 8
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 4 Radio Characteristics VDD = 3.3V Temperature = 20 oC Frequency = 2.441GHz All measurements are based on the Bluetooth test specification. Radio Characteristics Operating frequency Maximum RF transmit power VDD = 3.3V Min Typ 2402 - - - Temperature = +25°C Bluetooth Max Specification MHz 2480 4 Frequency (GHz) Unit 0 to 20 dBm ≤-70 dBm 2.402 - TBD 2.441 - TBD - 2.
PAGE 9
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5 Firmware versions F2M03 is supplied with Bluetooth stack firmware, which runs on the internal RISC micro controller of the Bluetooth module. This chapter includes an overview of the different options for more in depth information please use separate firmware datasheets provided by Free2move. All firmware versions are compliant with the Bluetooth specification v2.0.
PAGE 10
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Application Port Entity Application Host Bluetooth stack Host HCI F2M03 RFCOMM SDP Device Manager L2CAP F2M03 HCI HCI LINK MANAGER LINK MANAGER BASEBAND and RF BASEBAND and RF HCI, (Two-Processor Architecture) RFCOMM, (Embedded Two-Processor Architecture) Wireless UART Free2move’s Wireless UART (WU) firmware is intended to replace the serial cable(s) connecting portable and/or fixed electronic devices.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.1 Wireless UART Free2move’s Wireless UART (WU) firmware is intended to replace the serial cable(s) connecting portable and/or fixed electronic devices. Key features are robustness, high configurability, high security, low complexity and low power. The WU firmware is compliant with the Bluetooth Serial Port Profile (SPP) for setting up emulated serial cable connections between connected devices.
PAGE 12
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.1.1 General I/O General I/O interfaces are used for different purposes between the WU firmware and the Host: • Asynchronous data interface – configuration of the WU firmware or exchange transparent digital information between the connected Bluetooth devices. • Synchronous voice interface – exchange transparent voice information between the connected Bluetooth devices.
PAGE 13
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.1.2 Settings The default settings allow the user to communicate via Bluetooth, without sending any configuration commands, as soon as a successful connection has been established. Information sent and received on the serial interface of the WU unit at 38400 bps is transmitted transparently between the two connected devices. The default settings are valid as long as the user has made no configuration.
PAGE 14
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Software / Hardware Reboot This option gives the ability to be able to reboot the module via software commands. Inquiry Search for other Bluetooth devices in the neighborhood.
PAGE 15
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.1.3 Performance The WU firmware is a complete on-chip application; limited resources restrict the maximum throughput. The table below shows the maximum achieved throughput when streaming data between two connected WU v4.00 devices at close range. 57600 57600 57600 Maximum Throughput (kbit/s (throughput mode)) ~57.6 ~57.6 ~57.6 Maximum Throughput (kbit/s) (latency mode) ~57.6 ~57.6 ~50.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.2 HCI In this implementation the internal processor of the module runs the Bluetooth stack up to the Host Controller Interface (HCI) as specified in the Bluetooth specification V1.1. The external host processor must provide all upper Bluetooth stack layers. Free2move do not offer a host stack solution for an external Host.
PAGE 17
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet • • • • • • • Standard Bluetooth power saving mechanisms: Hold, Sniff and Park modes, including “Forced Hold” Dynamic control of peers’ transmit power via LMP Master/Slave switch Broadcast Channel quality driven data rate (CQDDR) All standard Bluetooth Test Modes Standard firmware upgrade via USB (DFU) Note: (1) Maximum allowed by Bluetooth v2.0 + EDR specification.
PAGE 18
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 5.2.2 Extra Functionality The firmware extends the standard Bluetooth functionality with the following features: • Supports BlueCore Serial Protocol (BCSP) - a proprietary, reliable alternative to the standard Bluetooth (H4) UART Host Transport. • Provides a set of approximately 50 manufacturer-specific HCI extension commands.
PAGE 19
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6 Device terminal description 6.1 Mono Audio Interface The F2M03ALA has an analog audio interface, which can be used for direct speaker drive and microphone input using a minimum number of external components. It is primarily intended for voice applications and it is fully operational from a single internal 1.8 Volt power supply.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.1.2 Microphone Input The F2M03ALA audio CODEC has been designed for use with microphones that have sensitivities between -60 and -40dBV. The sensitivity of -60dBV is equivalent to a microphone output of 1 µA when presented with an input level of 94dB SPL and loaded with 1 kΩ. The microphone should be biased as shown in figure below. The input impedance at MIC_N and MIC_P is typically 20kΩ. C1 and C2 should be 47nF.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.1.4 Output stage The digital data is converted to an analogue value by a DAC, then it is filtered prior to amplification by the output amplifier and it is available as a differential signal between SPKR P and SPKR N. The output amplifier is capable of driving a speaker directly if its impedance is greater than 8Ω. The amplifier is stable with capacitive loads up to 500pF.
PAGE 22
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2 PCM CODEC Interface Pulse Code Modulation (PCM) is the standard method used to digitise audio (particulary voice) for transmission over digital communication channels. Through its PCM interface, F2M03ALA has hardware support for continual transmission and reception of PCM data, thus reducing processor overhead for wireless headset and other audio applications.
PAGE 23
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2.1 PCM Interface Master/Slave When configured as the Master of the PCM interface, F2M03ALA generates PCM_CLK and PCM_SYNC.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2.2 Long Frame Sync Long Frame Sync is the name given to a clocking format that controls the transfer of PCM data words or samples. In Long Frame Sync, the rising edge of PCM_SYNC indicates the start of the PCM word. When F2M03ALA is configured as PCM Master, generating PCM_SYNC and PCM_CLK, then PCM_SYNC is 8bits long.
PAGE 25
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2.4 Multi-Slot Operation More than one SCO connection over the PCM interface is supported using multiple slots. Up to three SCO connections can be carried over any of the first four slots. Multi-slot Operation with Two Slots and 8-bit Companded Samples 6.2.5 GCI Interface F2M03ALA is compatible with the General Circuit Interface, a standard synchronous 2B+D ISDN timing interface.
PAGE 26
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2.6 Slots and Sample Formats F2M03ALA can receive and transmit on any selection of the first four slots following each sync pulse. Slot durations can be either 8 or 16 clock cycles. Durations of 8 clock cycles may only be used with 8-bit sample formats. Durations of 16 clocks may be used with 8, 13 or 16-bit sample formats. F2M03ALA supports 13-bit linear, 16-bit linear and 8-bit µ-law or A-law sample formats.
PAGE 27
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.2.8 PCM Timing Information PCM Master Timing Symbol Parameter 4MHz DDS generation fmclk Typ M a x (2) Unit - 128 256 512 - kHz - kHz PCM_CLK frequency 48MHz DDS generation (1) tmclkh (1) tmclkl - Min(1) 2.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet PCM Master Timing PCM Slave Timing Symbol Parameter Min Typ Max Unit fsclk PCM clock frequency (Slave mode: input) 64 - 2048 kHz fsclk PCM clock frequency (GCI mode) 128 - 4096 kHz tsclkl PCM_CLK low time 200 - - ns tsclkh PCM_CLK high time 200 - - ns thsclksynch Hold time from PCM_CLK low to PCM_SYNC high 30 - - ns tsusclksynch Set-up time for PCM_SYNC high to PCM_CLK low 30 - -
PAGE 29
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet PCM slave timing © 2007 Free2move AB Page 29(29)
PAGE 30
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.3 UART Interface The F2M03ALA Bluetooth module’s Universal Asynchronous Receiver Transmitter (UART) interface provides a simple mechanism for communicating with other serial devices using the RS232 standard(1). Universal Asynchronous Receiver Four signals are used to implement the UART function, as shown in the figure above.
PAGE 31
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet The UART interface is capable of resetting the Free2move module upon reception of a break signal. A Break is identified by a continuous logic low on the UART_RX terminal, as shown in figure below. If tBRK is longer than a special value, defined by the Free2move firmware a reset will occur. This feature allows a host to initialise the system to a known state.
PAGE 32
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.4 USB Interface F2M03 contain a full-speed (12Mbits/s) USB interface, capable of driving a USB cable directly. No external USB transceiver is required. The device operates as a USB peripheral, responding to requests from a master host controller such as a PC. Both the OHCI and the UHCI standards are supported.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.4.5 Bus-Powered Mode In bus-powered mode the application circuit draws its current from the 5V VBUS supply on the USB cable. F2M03 negotiates with the PC during the USB enumeration stage about power consumption. Bus-Powered mode is not supported in the default firmware of the HCI-firmware When selecting a regulator, be aware that VBUS may go as low as 4.4V.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.4.6 Suspend Current USB devices that run off VBUS must be able to enter a suspended state, whereby they consume less that 0.5mA from VBUS. The voltage regulator circuit itself should draw only a small quiescent current (typically less than 100µA) to ensure adherence to the suspend-current requirement of the USB specification. This is not normally a problem with modern regulators.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.4.9 USB 1.1 Compliance The Bluetooth chip on the F2M03 is qualified to the USB specification v1.1, details of which are available from http://www.usb.org. The specification contains valuable information on aspects such as PCB track impedance, supply inrush current and product labeling.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.5 Serial Peripheral Interface F2M03ALA is a slave device that uses terminals SPI_MOSI, SPI_MISO, SPI_CLK and SPI_CSB. This interface is used for program emulation/debug and IC test. It is also the means by which the F2M03ALA flash may be programmed, before any 'boot' program is loaded.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.7 PIOs The F2M03ALA have 8 programmable general-purpose I/O ports PIO[9:2] and one analog I/O port AIO[0]. The F2M03ALA also has one digital to analog port AUX_DAC. PIO lines is configured through software to have either weak or strong pull-ups or pull-downs. All PIO lines are configured as inputs with weak pull-downs at reset.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 6.8 Power supply The power supply for the F2M03ALA should be chosen carefully. Bad power supply can reduce the performance and may damage the module. It is also essential to use a proper reset circuit to the module for correct operation. 6.8.1 Voltage regulator The F2M03ALA has one power supply, +VDD. The voltage supplied should have low noise, less than 10mV rms between 0 and 10MHz.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 7 Application information 7.1 Recommended land pattern The module uses bottom pads for soldering optimized for an automatic solder line. It is also possible to solder the module manually by using hot air soldering. For manual soldering solder pads may in some situation be made slightly larger to allow easier warm up process. (Top view) 6mm 5mm 24mm 1mm 0.7mm 0.5mm 2.5mm 13mm 1.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 7.2 Layout guidelines To achieve good RF performance it is recommended to place ground plane(s) beneath the module but not under the antenna. The ground planes should be connected with vias surrounding the module. Except from the ground plane it is preferable that there are as few components and other material as possible nearby the antenna. Free air is the best surrounding for the antenna.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Typical application schematic TBD Typical application schematic for F2M03ALA when using the Wireless UART firmware © 2007 Free2move AB Page 41(41)
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 8 Package information F2M03ALA (Top and side view) 24 13 2.1 Physical size [mm]: Length: 24.0 Width: 13.0 Height: 2.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 9 Certifications 9.1 Bluetooth (TBD) TBD 9.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 9.3 FCC (TBD) FCC-B Radio Frequency Interference Statement This deceive has been tested and found to comply with the limits for a Class-B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in commercial environment.
PAGE 45
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 10 RoHS and WEEE Statement F2M03ALA meets the requirements of Directive 2002/95/EC of the European Parliament and of the Council on the Restriction of Hazardous Substance (RoHS). F2M03ALA also meet the requirements of Directive 2002/96/EG -Waste Electrical and Electronic Equipment (WEEE).
PAGE 46
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 11 Tape and Reel information 11.1 Package Tape dimensions TAPE DETAILS All units in mm 3.2 4.0 24.0 1.5 37.5 25.0 44.0 14.0 Cover tape Pulling direction 11.2 Reel dimensions A B C D N W1 W2 330.0 max 1.5 min 13.0±0.2 20.2 min 100.0 44.4 +2.0 –0.0 50.
PAGE 47
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 12 Ordering information November 2007: The F2M03ALA is available as engineering samples. Part nr: F2M03ALA-S01 Description Low power Bluetooth Audio module with antenna and Wireless UART firmware (SPP) Please visit our website: www.free2move.net for more information about local distributors and dealers.
PAGE 48
Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 13 Document history Date NOVEMBER 2007 Revision Reason for Change 0 First preliminary release, all data within the document are still preliminary F2M03ALA Datasheet Datasheet_F2M03ALA_rev_a.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet 14 Acronyms and definitions Term: Bluetooth ACL AC A-law API BCSP BER C/I CMOS CODEC CPU CQDDR CTS CVSD DAC dBm DC DFU GCI HCI Host Host Controller HV ISDN ISM ksamples/s L2CAP LC LSB p-law MISO OHCI PA PCB PCM PIO RAM RF RFCOMM RISC RSSI RTS RX SCO SDP SIG SPI SPP TBD TX UART USB VM www Definition: A set of technologies providing audio and data transfer over short-range radio Asynchronous Connection-Less.
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Rev: 0 Low power Audio Bluetooth™ Module with antenna F2M03ALA Preliminary datasheet Contact information For support questions please contact your local dealer For other purposes use: info@free2move.net Website: www.free2move.net Local dealer/distributor The information given herein includes text, drawings, illustrations and schematics that are believed to be reliable. However, Free2move makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use.