OPENBRAIN Technologies M5G BLUETOOTH MODULE User Manual M5G

OPENBRAIN Technologies Co., Ltd. BLUETOOTH MODULE M5G

Users Manual

OPENBRAIN Technologies Co., LTD. TEL : +82-31-596-6400 FAX : +82-31-596-6410 E-mail : obt@openbrain.co.kr http://www.OPENBRAIN.co.kr http://www.sonorix.com Approval Sheet for Product Specification Ref.No : Rev. No : Issued Date : Customer : Product Name : Model No. : Customer Approval Signature / Stamp SBNTECH Bluetooth Module M5G APS-2009-012 1.1 2009.5.23
2 OPENBRAIN Technologies Co., LTD. Change History Rev. Date Author Reason for Change 0.9 2008.5.26 S.H.Cho Preliminary Drafting 1.0 2008.6.18 S.H.Cho Antennae characteristics and reliability test data supplements 1.1 2009.5.23 Y.Y.Lim Change the Connector (SMD > DIP) Internal Check/Approval Author Checked by Approved by Name Y.Y. L i m J . H . P a r k J . D. O h Date 2009.5.23 Signature
3 OPENBRAIN Technologies Co., LTD. Contents 1. SUMMARY ................................................................................................................................................ 4 1.1. PRODUCT SUMMARY .................................................................................................................................... 4 1.2. PRODUCT FEATURES .................................................................................................................................... 4 1.3. SPECIFICATIONS .......................................................................................................................................... 4 1.4. APPLICATION ............................................................................................................................................... 5 1.5. EXTERNAL APPEARANCE AND PIN (PAD) SPECIFICATIONS ................................................................................. 5 2. HOW TO USE ............................................................................................................................................ 7 2.1. HARDWARE DESIGN METHODOLOGY .............................................................................................................. 7 2.2. OPERATING PROCEDURES ............................................................................................................................ 7 3. PRODUCT SPECIFICATIONS .................................................................................................................. 8 3.1. ELECTRICAL SPECIFICATIONS ........................................................................................................................ 8 3.2. CURRENT CONSUMPTION ............................................................................................................................. 9 3.3. ANTENNAE RADIATION CHARACTERISTICS .................................................................................................... 10 3.4. MECHANICAL SPECIFICATIONS ..................................................................................................................... 13 4. PRECAUTIONS DURING HANDLING ................................................................................................... 14 4.1. GENERAL PRECAUTIONS ............................................................................................................................. 14 4.2. MAXIMIZING RF PERFORMANCE .................................................................................................................. 14 5. RELIABILITY TEST RESULT ................................................................................................................. 15 5.1. OPERATING AND STORAGE TEMPERATURE TEST RESULTS................................................................................ 15 5.2. TIME VS TEMPERATURE FOR OPERATING & STORAGE RELATIVE GRAPH .......................................................... 15 5.3. RADIO CHARACTERISTICS FOR EACH CHECK POINT ...................................................................................... 16 6. PACKAGING ........................................................................................................................................... 20 7. PRODUCT SETTING (CUSTOMIZATION) ............................................................................................. 21 8. FCC Information …………………………………………………………………………………………….. 22
4 OPENBRAIN Technologies Co., LTD. 1. Summary This document defines the product specifications of Bluetooth voice communication module (M5G) including electrical and mechanical characteristics manufactured by OPENBRAIN for customer approval purposes. 1.1. Product Summary OPENBRAIN’s M5G is a compact Bluetooth module designed to provide easy Bluetooth audio application for communication devices without Bluetooth functionality. By integrating the module into communication devices that use speaker/microphone or wired ear-sets, it enables the communication device to be used with Bluetooth headsets within a range of 10m distance. M5G integrates all the functions needed to replace existing audio connection wirelessly and has been designed such that it is possible to control and monitor the functions externally via serial (UART) communication thereby enabling Bluetooth functionality to be implemented into devices in a short period of time. Also, the module has been designed to be ultra-small and light with minimal power consumption thereby making it ideal for integration without sacrificing electrical and mechanical design factors of existing devices. The advantages of using M5G are, it makes production easy and simple as the modules are RF tuned and tested before supply and it is not necessary for customers to secure additional Bluetooth test/measuring equipments. 1.2. Product Features  Wireless application possible without having to change circuit or software of existing communication devices  Built-in antennae eliminates the need for separate antennae  Control of all functions and state monitoring via UART communication  Can be customized according to customer requirements 1.3. Specifications  Bluetooth V2.0, 1.2, 1.1 compatible  Frequency Band : 2,400 ~ 2,483 MHz  Embedded Protocol : L2CAP, RFCOMM, SDP
5 OPENBRAIN Technologies Co., LTD.  Embedded Profile : Handsfree AG  Output Power: 0dBm (Power Class 2)  Receiver Sensitivity : < -80dBm  Max. Data Rate : 702kbps  Antennae Gain: 0dBi Max.  Voice Signal Interface: Analog Single Ended or Differential  Host Interface: UART (1.8V Level, 115,200bps).  Operating Voltage: 3.3V  Operating Temp: -25 ~ +85℃  Size: 22.0mm X 36.0mm X 8.4mm 1.4. Application  Mobile phones, Video phones, VoIP phones  Other Voice Communication Devices 1.5. External Appearance and Pin (Pad) Specifications Mechanical Layout * For mechanical part details, refer to 3.4 36.0 ± 0.3 22.0 ± 0.32 4 6 . . 18 1 3 5 . . 17 ConnectorBluetooth ChipAntenna1. VDD 2. RESETB 3. GND 4. GND 5. UART_TX 6. UART_RX 7. PCM_OUT 8. PCM_SYNC9. PCM_IN 10. PCM_CLK 11. MIC+ 12. MIC- 13. SPK+ 14. SPK- 15. SPI_MISO 16. SPI_CSB 17. SPI_MOSI 18. SPI_CLK Top View (unit: mm) 1.2 2.0 4.0 1.4
6 OPENBRAIN Technologies Co., LTD. Pin Description Pin No Name Description 1 VDD Positive supply (3.0V~4.2V) 2 RESETB Reset if low. Input debounced so must be low for > 5ms to cause a reset 3 GND Ground 4 GND Ground 5 UART_TX UART data output 6 UART_RX UART data input 7 PCM_OUT PCM Synchronous data out 8 PCM_SYNC PCM Synchronous data sync 9 PCM_IN PCM Synchronous data in 10 PCM_CLK PCM Synchronous data clock 11 MIC+ Microphone differential, Input P 12 MIC- Microphone differential, Input N 13 SPK+ Speaker differential output P or single ended output 14 SPK- Speaker differential output N or single ended output 15 SPI_MISO Serial Peripheral interface data output 16 SPI_CSB Chip select for synchronous serial peripheral interface 17 SPI_MOSI Serial Peripheral interface data input 18 SPI_CLK Serial Peripheral interface clock
7 OPENBRAIN Technologies Co., LTD. 2. How to Use 2.1. Hardware Design Methodology To use M5G module with existing communication devices, connect Host Processor with RESETB and UART transceiver port as shown and connect SP+, SP-, MIC+ and MIC- to analog audio input/output port of Audio Codec via Differential Mode. To connect audio input/output as Single Ended Mode, use any one of the two terminals or use dedicated audio Amp to change the mode. But Differential Mode is strongly recommended as it has the effect of improving S/N ratio. In case Single Ended Mode has to be used, it is recommended that dedicated Amp be used. 2.2. Operating Procedures The operating procedures for M5G module are as follows: Details on operating procedures and UART communication protocol are defined in a separate document.  Pairing Mode: Searches for Bluetooth devices in the vicinity that support Handsfree and Headset profiles and allows user to connect with a specific selected device.  Paging Mode: Connection attempt with paired device. If pairing information of multiple devices are present, paging will start with the latest device that has been connected.  Connected Mode: Bluetooth link established with paged device.  Incoming Call: The state wherein bell rings when call is coming in.  Outgoing Call: The state wherein user makes a call.  Talk Mode: The state where user is talking with other party. M5G Bluetooth Audio Module +3.3V VDD GND RESETB 1 13,14 2 3,4 Host Processor SP 11,12 MIC Audio Codec & Amplifier UART 5,6
8 OPENBRAIN Technologies Co., LTD. 3. Product Specifications 3.1. Electrical Specifications Absolute Maximum Ratings Symbol Parameter Min Max Unit VDD Power Input Voltage (Pin 1) -0.4 +5.6 V V+, V- Port Input Voltage VSS-0.4 VDD+0.4 V PinRF RF Input Power 0 dBm Ts Storage Temp. -35 +120 ℃  Be careful not to expose the product to voltages and signals beyond rated values indicated above as this may cause damage. Recommended Operating Conditions Symbol Parameter Min Typ Max UnitVDD Power Input Voltage (Pin 1) 2.2 3.3 4.2 V To Operating Temp. -25 +25 +85 ℃ RF Characteristics Symbol Parameter Condition Min Typ Max UnitPoutRF Transmit Output Power 0 +2 +4 dBmMODF1avg Modulation Characteristics Data = 00001111 140 164 175 kHz MOFF2max Data = 10101010 115 150 kHz F2avg/F1avg 0.8 0.97 20dB BW 940 1000 kHz RXsense Receive Sensitivity BER < 0.001 -83 -79 dBmPinRF Maximum Input Level -20 -10 dBmIMP Inter-Modulation Performance F1 = +3MHz F2 = +6MHz PinRF = -64dBm -39 -15 dBmOOB Out Of Band Blocking Performance PinRF = -10dBm 30MHz ~ 2GHz 3GHz ~ 12.75GHz -10 0 dBmPinRF = -27dBm 2000MHz ~ 2399MHz2498MHz ~ 3000MHz-27 -15 dBm* Measured Temperature : +25℃, Measured Voltage : 3.3V
9 OPENBRAIN Technologies Co., LTD. Audio Characteristics Symbol Parameter Min Typ Max Unit Vain_max Input Full Scale at Maximum Gain 3 mVrms Vain_min Input Full Scale at Minimum Gain 350 mVrms BWain Bandwidth of Microphone Amplifier 20 kHz IMPmic Mic Mode Input Impedance 20 kohm IMPin Input Mode Input Impedance 130 ohm Vsp_out Output Voltage Full Scale Swing(Differential) 2.0 Vp-p Isp_out Output Current Drive (at Full Scale Swing) 10 20 40 mA BWaout Output -3dB Bandwidth 18.5 kHz Lres Allowed Load: Resistive 8 Open ohm Lcap Allowed Load: Capacitive 500 pF 3.2. Current Consumption Operating Mode Connection Type UART Rate(kbps) Average Unit Page Scan - 115.2 0.49 mA Inquiry and Page Scan - 115.2 0.83 mA ACL 1.28s sniff Master 38.4 0.37 mA SCO HV1 Master/Slave 38.4 41 mA SCO HV3 Master/Slave 38.4 21~26 mA Standby Host Connection - 38.4 76 uA Reset(RESETB low) - - 58 uA * Operating Temp: +25℃, Measurement point: 1.8V VDD input terminal
10 OPENBRAIN Technologies Co., LTD. 3.3. Antennae Radiation Characteristics Radiation gain(E-Field, dBi) Freq (GHz) XY XZ YZ Total Gain Peak Average Peak Average Peak Average Peak Average2.400 -0.96 -4.01 -1.11 -4.54 -6.31 -10.45 -0.96 -5.67 2.450 -1.71 -4.67 -1.53 -5.12 -7.27 -11.21 -1.53 -5.23 2.500 -1.12 -4.28 -1.18 -4.55 -7.64 -11.72 -1.12 -5.62 Y θ X Y φ Z Antennae Radiation Coordinates
11 OPENBRAIN Technologies Co., LTD. Radiation Pattern - Azimuth XY (E-Field, Standalone Module)
12 OPENBRAIN Technologies Co., LTD. Radiation Pattern - Azimuth XY (E-Field, Module Mounted onto Product)
13 OPENBRAIN Technologies Co., LTD. 3.4. Mechanical Specifications Mechanical Dimension (Unit: mm) 36.0 ± 0.3 22.0 ± 0.32 4 6 . . 18 1 3 5 . . 17 ConnectorBluetooth ChipAntenna2.0 1. VDD 2. RESETB 3. GND 4. GND 5. UART_TX 6. UART_RX 7. PCM_OUT 8. PCM_SYNC9. PCM_IN 10. PCM_CLK 11. MIC+ 12. MIC- 13. SPK+ 14. SPK- 15. SPI_MISO 16. SPI_CSB 17. SPI_MOSI 18. SPI_CLK 3.0 7.5 2.03.01.2 2.0 4.0 1.4
14 OPENBRAIN Technologies Co., LTD. 4. Precautions during handling 4.1. General precautions Precautions for handling M5G modules are as follows:  Do not expose the modules to static electricity as it may cause damage.  Use power source that will provide enough current to power input terminal of module.  Use only rated voltage or RF signals. 4.2. Maximizing RF Performance To maximize RF performance of products that use M5G module, PCB has to be designed taking into the consideration the following:  Sufficient Ground area has to be secured on Main PCB for stable RF performance.  Objects (conductors, insulators) close to antennae will interfere radiation and distort radiation pattern. For conductors, they should be at least 10mm away from antennae and for insulators such as plastic parts, at least 5mm away.  Main PCB must be designed such that the ground of Main PCB does not intrude into ground of module and antennae boundary lines as shown in the diagram below. How to mount module onto Main PCB Ground surface of Main PCBBoundary of Main PCB Remove Ground of PCBRemove Ground of PCB
15 OPENBRAIN Technologies Co., LTD. 5. Reliability Test Result 5.1. Operating and storage temperature test results  M5G module stored in temperature and moisture resistant chamber for 2 hours from -35 ~ +120℃ Operating Temp. Result Storage Temp. Result +85℃ Normal +120℃ Normal +20℃ Normal Normal -25℃ Normal -35℃ Normal 5.2. Time Vs Temperature for Operating & Storage Relative Graph
16 OPENBRAIN Technologies Co., LTD. 5.3. Radio Characteristics for Each Check Point  Measurement results and Bluetooth specification compliance of modules stored in temperature and moisture resistant chamber for 2 hours at -25℃ RF Operating Check 1(-25℃) Result (dBm) Bluetooth Spec.(dBm) VerdictOutput Power +2.65 -6 to +4 Pass Sensitivity at 0.1% BER for all packet types -86 ≤-70 Pass Modulation Characteristics Channel df1_avg (kHz) df2_avg (kHz) df2/df1 (%) Bluetooth Spec. Verdict0 164.6 158.7 96.42 140<df1_avg, df2_avg <175 0.80<df2/df1(%) Pass 39 164.5 155.7 94.65 Pass 78 164.7 156.1 94.78 Pass Initial Carrier FrequencyTolerance (ICFT) Df0_max (kHz) Df0_min (kHz) Bluetooth Spec.(kHz) Verdict0.2 -0.1 ±75 Pass Carrier Frequency Drift(CFD) Channel f_drift_max (kHz) Drift_rate_max (kHz/50us) Bluetooth Spec.(kHz) Verdict0 10.1 4.7 Drift Rate Max ≤20 f drift max≤40 Pass 39 9.4 -5.3 Pass 78 7.4 6.1 Pass TX Output Spectrum -20dB Bandwidth f_h-f_l Bluetooth Spec.(MHz) Verdict0.914 f_h - f_l <= 1.000MHz Pass
17 OPENBRAIN Technologies Co., LTD.  Measurement results and Bluetooth specification compliance of modules stored in temperature and moisture resistant chamber for 2 hours at 85 )℃ RF Operating Check 2 (85℃) Result (dBm) Bluetooth Spec.(dBm) VerdictOutput Power +3.8 -6 to +4 Pass Sensitivity at 0.1% BER for all packet types -82.5 ≤-70 Pass Modulation Characteristics Channel df1_avg (kHz) df2_avg (kHz) df2/df1 (%) Bluetooth Spec. Verdict0 163.8 156.5 95.54 140<df1_avg, df2_avg <175 0.80<df2/df1(%) Pass 39 164.9 157.6 96.16 Pass 78 164.9 156.5 95.49 Pass Initial Carrier FrequencyTolerance (ICFT) Df0_max (kHz) Df0_min (kHz) Bluetooth Spec.(kHz) Verdict29.8 29.3 ±75 Pass Carrier Frequency Drift(CFD) Channel f_drift_max (kHz) Drift_rate_max (kHz/50us) Bluetooth Spec.(kHz) Verdict0 -13.6 6.4 Drift Rate Max ≤20 f drift max≤40 Pass 39 -10.2 -5.7 Pass 78 -15.9 -8.1 Pass TX Output Spectrum -20dB Bandwidth f_h-f_l Bluetooth Spec.(MHz) Verdict0.914 f_h - f_l <= 1.000MHz Pass
18 OPENBRAIN Technologies Co., LTD.  Measurement results and Bluetooth specification compliance of modules stored in temperature and moisture resistant chamber for 2 hours at 20 )℃ RF Operating Check 3 (20℃) Result (dBm) Bluetooth Spec.(dBm) VerdictOutput Power +2.54 -6 to +4 Pass Sensitivity at 0.1% BER for all packet types -84.5 ≤-70 Pass Modulation Characteristics Channel df1_avg (kHz) df2_avg (kHz) df2/df1 (%) Bluetooth Spec. Verdict0 164.3 160.1 97.44 140<df1_avg, df2_avg <175 0.80<df2/df1(%) Pass 39 164.6 159.9 97.14 Pass 78 164.7 159.4 96.78 Pass Initial Carrier FrequencyTolerance (ICFT) Df0_max (kHz) Df0_min (kHz) Bluetooth Spec.(kHz) Verdict13.3 11.5 ±75 Pass Carrier Frequency Drift(CFD) Channel f_drift_max (kHz) Drift_rate_max (kHz/50us) Bluetooth Spec.(kHz) Verdict0 8.4 -5.4 Drift Rate Max ≤20 f drift max≤40 Pass 39 6.9 -6.4 Pass 78 7.0 6.5 Pass TX Output Spectrum -20dB Bandwidth f_h-f_l Bluetooth Spec.(MHz) Verdict0.914 f_h - f_l <= 1.000MHz Pass
19 OPENBRAIN Technologies Co., LTD.  Measurement results and Bluetooth specification compliance of modules stored in temperature and moisture resistant chamber for 2 hours at -35 ,℃ 120℃(Storage Graph) RF Storaged Check 1 (-35℃ ~ +120℃) Result (dBm) Bluetooth Spec.(dBm) VerdictOutput Power 0.1 -6 to +4 Pass Sensitivity at 0.1% BER for all packet types -81 ≤-70 Pass Modulation Characteristics Channel df1_avg (kHz) df2_avg (kHz) df2/df1 (%) Bluetooth Spec. Verdict0 164.6 160.3 97.45 140<df1_avg, df2_avg <175 0.80<df2/df1(%) Pass 39 164.6 160.2 97.33 Pass 78 164.5 159.3 96.84 Pass Initial Carrier FrequencyTolerance (ICFT) Df0_max (kHz) Df0_min (kHz) Bluetooth Spec.(kHz) Verdict13.2 11.9 ±75 Pass Carrier Frequency Drift(CFD) Channel f_drift_max (kHz) Drift_rate_max (kHz/50us) Bluetooth Spec.(kHz) Verdict0 8.3 7.1 Drift Rate Max ≤20 f drift max≤40 Pass 39 8.4 7.2 Pass 78 6.4 7.2 Pass TX Output Spectrum -20dB Bandwidth f_h-f_l Bluetooth Spec.(MHz) Verdict0.922 f_h - f_l <= 1.000MHz Pass
20 OPENBRAIN Technologies Co., LTD. 6. Packaging Packaging (unit: mm)247 312 15 * Individually packed in soft white tray (50 pcs per tray)
21 OPENBRAIN Technologies Co., LTD. 7. Product Setting (Customization) Configuration of Bluetooth Parameters - Factory Setting No Parameter Value 1 Local Device Name “VPAD” (ASCII) 2 Bluetooth Device Address “00150EE20000 ~ 00150EF00000” (HEX) 3 UART Baud Rate 115,200 bps 4 UART Parity None 5 UART Stop Bit 1 6 UART Flow Control None 7 Class Of Device Audio/Phone/Audio_Gateway (0x20 0x02 0x10) 8 Security Mode Level 1 (depends on remote device security level) 9 Operating Mode Active and Sniff Mode Support. 10 Page Scan Mode Discoverable & Connectable 11 Inquiry Mode Non-discoverable & Non-connectable Caution Modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. Assure compliance The use of the modular transmitter is only approved to be used inside SBN Tech equipment. We assure the compliance of the end product when it is assembled inside SBN Tech equipment.
22 OPENBRAIN Technologies Co., LTD. 8. FCC Information to User This equipment 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 in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is con-nected. • Consult the dealer or an experienced radio/TV technician for help. FCC Compliance Information : This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation IMPORTANT NOTE: FCC RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

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