LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna

Transcription

1 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna LM /FEB/0 6mm mm Features Bluetooth v. + EDR compliant firmware True Wireless Stereo Support Class device with up to m range in open space APTX Support AT Command interface available for HFP/HSP/ADP/AVRCP firmware Support UART, PIO and USB Host Interface HFP/HSP/ADP/AVRCP profiles supported. SPP/PBAP firmware under development Development kit (LM6) for LM70 available for development Application Schematic for LM70 available for development CSR Bluecore 0 Multimedia External Flash (BC0MM Ext) chipset Lead free RoHS compliant Small Size : 6mm x mm x.mm Integrated Switchedmode regulator Embedded Kalimba DSP Coprocessor Applications Integrated Switchedmode regulator High Quality Stereo Wireless Headsets Embedded Kalimba DSP Coprocessor High Quality Mono Headsets Integrated battery charging option Vehicle Infotainment Systems Integrated 6bit Stereo Audio CODEC 9 SNR for DAC Wireless Speakers UART baud rate upto 9600 bps supported VoIP Handsets Enhanced Audibility and Noise cancellation Bluetooth Enabled Automotive Wireless Gateways Integrated 6 MB flash memory Handsfree kits Overview LM70 is LM Technologies Ltd Class Bluetooth Multimedia module with external antenna. This module is a CSR Bluecore Multimedia External BC0 MM chip based surface mount module available with Bluetooth Handsfree (HFP), Headset (HSP), Advanced Audio Distribution Profile (ADP) and Audio Video Remote Control Profile (AVRCP) combo firmware. The firmware can be configured via AT commands over UART interface or PIO interface via push buttons. This module is ideal for multimedia applications in vehicle infotainment systems, handsfree kits, headsets, Bluetooth speakers and Bluetooth Stereo Headsets. This module is available with Bluetooth. + EDR compliant firmware. Firmware for ADP Speakers, Stereo Transmitter is available upon request. LM70 Page of +(0) sales@lmtechnologies.com

2 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna Packaging Options LM /FEB/0 Tape and Reel 700 LM70 with Bluetooth. +EDR firmware Tray Packaging 700 LM70 with Bluetooth. +EDR firmware Individual 700 LM70 with Bluetooth. +EDR firmware User Guides, Manuals and Widcomm Configuration Software available to download via our website General Specification Chipset Power Classification Module Type Bluetooth Specification Frequency Temperature Range Data Rate Range Rx Sensitivity Antenna Voltage operation Current Consumption (standby mode) Current Consumption (ACL Connection, master role) Current Consumption (data transfer, master role) Current Consumption (ACL Connection, slave role) Current Consumption (data transfer, slave role) Power Output Default Firmware CSR Bluecore Multimedia External BC0 MM Class Surface Mount SMT Core v. + EDR 0 0 MHz 0 C to +70 C Up to Mbps in HCI Mode m in open space m typical External Antenna..6v 0.06 ma. ma 9. ma ma ma + m LMSRXATCYYYYMMDD (AT Command Firmware), LMRXHIC (PIO firmware) Size Bluetooth Profile 6mm x mm x mm Handsfree Profile (HFP), Advanced Audio Distribution Profile (ADP), Audio Video Remote Control (AVRCP), Serial Port Profile (SPP), Phone Book Access Profile (PBAP) Interface Digital Audio Bus Codec DSP Processor Flash Memory RoSH Compliant UART, PIO s, USB Host Interface PCM, IS or SPDIF Yes, Integrated 6 bit Stereo Audio CODEC Embedded Kalimba DSP CoProcessor 6MB Yes LM70 Page of +(0) sales@lmtechnologies.com

3 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna LM /FEB/0 Block Diagram Charger Input.V 6.V.V.V DC / DC Converter & Charger 6Mbit Flash ANT SPI VDD V UART PIO Interface Balun + BFP BC0MM PCM/S AUDIO USB X tal 6Mhz Pin Assignments Pin Name Type Description Analog Ground SPKR_B_P Speaker output positive, right SPKR_B_N Speaker output positive, right SPKR_A_P Speaker output positive, left SPKR_A_N Speaker output negative, left 6 VDD_PIO / VDD_PADS VDD Positive supply for PIO, AUX DAC and all other digital Input / Output ports 7 Common Ground ANT Connect to 0 ohm antenna (RF signal) 9 Common Ground 0 AUX_DAC bit voltage output DAC PIO 0 PIO PIO PIO LM70 Page of +(0) sales@lmtechnologies.com

4 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna Pin Assignments Continued LM /FEB/0 Pin Name Type Description AIO Analog 6 AIO 0 Analog 7 USB_DN USB Data Minus USB_DP USB Data Plus 9 VDD_USB VDD Positive Supply for UART / USB Ports 0 UART_RX UART Rx Data UART_TX CMOS Output UART Tx Data UART_RTS CMOS Output UART Request to Send, Active Low UART_CTS UART Clear to Send, Active Low PIO 0 PIO 9 6 PIO 7 PIO Common Ground 9 PIO 0 PIO 7 PIO PIO PIO 6 RESET # Rest if low. Input debounced so must be low >ms to cause reset PCM_CLK Synchronous Data Clock 6 PCM_IN Synchronous Data Input 7 PCM_SYNC Synchronous Data Sync PCM_OUT CMOS Output Synchronous Data Output 9 SPI_MOSI SPI Data Input 0 SPI_CS # Chip select for serial Peripheral Interface (SPI), active low SPI_CLK SPI Clock SPI_MISO CMOS Output SPI Data Output Common Ground LED Open Drain Output LED Driver LED 0 Open Drain Output LED Driver 6 V VDD V Input 7 LX Switch Mode power regulator output Switch Mode power regulator output VDD_CHG Charger Input Lithium Ion/Polymer battery charger input 9 Battery Terminal Positive Lithium Ion/Polymer battery positive terminal. Battery O/I to SMR LM70 Page of +(0) sales@lmtechnologies.com

5 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna Pin Assignments Continued LM /FEB/0 Pin Name Type Description 0 VREGENABLE_H (Power_On) Take high to enable highvoltage linear regulator and swichmode regulator MIC_BIAS Microphone Bias MIC_B_P Microphone Bias positive, right MIC_B_N Microphone Bias negative, right MIC_A_P Microphone Bias positive, left MIC_A_N Microphone Bias negative, left RF Characteristics Transmitter: VDD.V, Temperature= +0 C Characteristic Frequency Min Typ Max Bluetooth Specificaiton Unit Sensitivity at 0.%.0 <=70 m BER for all. packet types.0 Maximum received signal at 0.% BER >=0 >=0 m C/I cochanel 7 <= Adjacent channel selectivity C/I F=F0+ Mhz 6 <=0 Adjacent channel selectivity C/I F=F0 Mhz 7 <=0 Adjacent channel selectivity C/I F=F0+ Mhz <=0 Adjacent channel selectivity C/I F=F0 Mhz 9 <=0 Adjacent channel selectivity C/I F=F0 Mhz <=0 Adjacent channel selectivity C/I F=F0+ Mhz 7 <=0 Adjacent channel selectivity C/I F=FImage 7 <=9 Maximum Level of intermodulation interferers 0 >=9 m Spurious output level 6 m/hz Maximum RF Transmit Power 6 to + m RF power control resolution >=6 RF power control range 0. 0 Bandwidth for modulated carrier 96 <=000 Adjacent channel trasmit power F=F0+ Mhz 0 <=0 m Adjacent channel trasmit power F=F0+ Mhz 0 <=0 m Adjacent channel trasmit power F=F0+> Mhz <=0 <=0 m Δf avg Maximum Modulation 66 0<favg<7 Δf max Minimum Modulation Δf avg / Δf avg 0.9 >=0.0 Initial Carrier Tolerance 0 +/7 Drift Rate <=0 /0μ Drift (Single Slot Packet) <= Drift (Five Slot Packet) 0 <=0 nd Harmonic Content 0 <=0 m rd Harmonic Content <=0 m LM70 Page of +(0) sales@lmtechnologies.com

6 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna Dimensions LM /FEB/0 All measurements in mm. 0 =* 6. =* =* TOP VIEW =* 6 BOTTOM VIEW. =* 0.6. Design to Micro Strip Line. 0.6* PCB LAYOUT (TOP VIEW) LM70 Page 6 of +(0) sales@lmtechnologies.com

7 Left J Right J C pf R M 0R L BTP Vout C 0.uF C 0uF/6.V/C Low ESR VO R IN+ IN K % IN IN+ BYPASS shutdown VSS VDD U 7 L NC 0R C6 ANT R9 K % TPA6A C.7uF MIC_A_P MIC_A_N VO C9 uf/060 C uf/060 VDD_AMP R.K VDD_AMP C 0uF/6.V/C R M R 9R R 9R CE Vin 00K R C pf XC609FMRN U C0 uf/060 L nh C pf C 0.uF C6 0.uF V BIAS_MIC C 0.uF L nh + A B C D J MIC R R0 C7 uf/060 Low ESR K % K % R R0 K % K % R K % R K % NC C7 V SPKR_R_P SPKR_R_N SPKR_L_P SPKR_L_N AUX_DAC PIO0 PIO PIO PIO RF_IO SPKR_B_P SPKR_B_N SPKR_A_P SPKR_A_N PIO_POWER C uf/060 C uf/060 C0 uf/060 C9 uf/ MIC_A_P MIC_A_N Power_on BIAS_MIC C 0uF/6V/06 V U LM70 SPKR_L_N SPKR_L_P SPKR_R_P SPKR_R_N V PIO VOL VOL+ MFB FF C NC/060 V PS? PS6 PS PS PS PS SPI_MISO SPI_CLK SPI_CSB 0 SPI_MOSI RESETB MFB PIO REW 0 FF 9 REW SPI_MISO SPI_CLK SPI_CS# SPI_MOSI PCM_OUT PCM_SYNC PCM_IN PCM_CLK RESETB PIO6 PIO PIO PIO7 PIO L uh 0K R? 0K R6 0K R6 0K R 0K R 0K R CON6 6 J Option V V V V V V Programming 70R R RED LED R7 0K Date: Size B Title RESETB V PS7 PS 0K R6 J DC JACK JD BAT CON Tuesday, April 07, 009 Document Number Sheet LM70 Application Schematic (VREG) R7 00K C 0uF/6V/06 C C 0.uF 0uF/6V/06 C7 0.uF Power_on B 0R/060 Int_Charge R 70R BLUE LED The external inductor (L) must have an ESR in the range Ω Int_Charge LM70 LED0 LED MIC_A_N MIC_A_P MIC_B_N MIC_B_P MIC_BIAS POWER_ON VDD_CHG LX V LED0 LED AIO AIO0 USB_DN USB_DP VDD_USB UART_RX UART_TX UART_RTS UART_CTS PIO0 PIO9 PIO PIO LED0 LM Page 7 of VOL+ VOL of Rev <RevCode> A B C D Class Module CSR BC0 MM External Antenna LM70 Bluetooth Audio Module LM /FEB/0 + +(0) sales@lmtechnologies.com

8 LM70 Bluetooth Audio Module Class Module CSR BC0 MM External Antenna LM /FEB/0 Revision History.0 7/NOV/0 First version with new layout. 0/MAR/0 Some minor changes in data sheet content. /FEB/0. Packaging information corrected. Revision information added. 7/FEB/0 Updated Datasheet LM70 Page of +(0)