LM740 LMTECHNOLOGIES | Alldatasheet
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LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 Bluetooth v2.1 + EDR compliant firmware Class 2 device with up to 25 m range in open space AT Command interface available for HFP/HSP/A2DP/AVRCP firmware HFP/HSP/A2DP/AVRCP profiles supported. SPP/PBAP firmware under development Development kit (LM556) for LM740 available for development Integrated Switched-mode regulator Embedded Kalimba DSP Co-processor Integrated Switched-mode regulator Embedded Kalimba DSP Co-processor Integrated battery charging option Integrated 16-bit Stereo Audio CODEC 95dB SNR for DAC UART baud rate upto 921600 bps supported Enhanced Audibility and Noise cancellation Integrated 16 MB flash memory True Wireless Stereo Support APTX Support Support UART, PIO and USB Host Interface CSR Bluecore 05 Multimedia External Flash (BC05-MM Ext) chipset Lead free - RoHS compliant Small Size : 16mm x 15mm x 2.2mm High Quality Stereo Wireless Headsets High Quality Mono Headsets Vehicle Infotainment Systems Wireless Speakers VoIP Handsets Bluetooth Enabled Automotive Wireless Gateways Handsfree kits LM740 is LM Technologies Ltd Class 2 Bluetooth Multimedia module with external antenna. This module is a CSR Bluecore 5 Multimedia External BC05 MM chip based surface mount module available with Bluetooth Handsfree (HFP), Headset (HSP), Advanced Audio Distribution Profile (A2DP) 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 2.1 + EDR compliant firmware. Firmware for A2DP Speakers, Stereo Transmitter is available upon request. 15mm 16mm
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 Tape and Reel Part No 740-0413 LM740 with Bluetooth 2.1 +EDR firmware Tray Packaging Part No 740-0412 LM740 with Bluetooth 2.1 +EDR firmware Individual Part No 740-0411 LM740 with Bluetooth 2.1 +EDR firmware 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 Size Bluetooth Profile Interface Digital Audio Bus Codec DSP Processor Flash Memory RoSH Compliant CSR Bluecore 5 Multimedia External BC05 MM Class 2 Surface Mount SMT Core v2.1 + EDR 2402 - 2480 MHz -20° C to +70° C Up to 3 Mbps in HCI Mode 25m in open space -82 dBm typical External Antenna 1.8 - 3.6v 0.06 mA 4.4 mA 9.1 mA 15 mA 21 mA + dBm LM-SRX-ATC-YYYYMMDD (AT Command Firmware), LM-RX-HIC (PIO firmware) 16mm x 15mm x 2mm Handsfree Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio Video Remote Control (AVRCP), Serial Port Profile (SPP), Phone Book Access Profile (PBAP) UART, PIO’s, USB Host Interface PCM, I2S or SPDIF Yes, Integrated 16 bit Stereo Audio CODEC Embedded Kalimba DSP Co-Processor 16MB Yes LM740 Page 2 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com User Guides, Manuals and Widcomm Configuration Software available to download via our website - http://www.lm-technologies.com/support/downloads
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 Pin Name AGND SPKR_B_P SPKR_B_N SPKR_A_P SPKR_A_N VDD_PIO / VDD_PADS GND ANT GND AUX_DAC PIO 0 PIO 1 PIO 3 PIO 2 Type AGND Analogue Analogue Analogue Analogue VDD GND Analogue GND Analogue I/O I/O I/O I/O
Description
Speaker output positive, right Speaker output positive, right Speaker output positive, left Speaker output negative, left Positive supply for PIO, AUX DAC and all other digital Input / Output ports Common Ground Connect to 50 ohm antenna (RF signal) Common Ground 8 bit voltage output DAC Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line LM740 Page 3 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com ANT Balun + BFP DC / DC Converter & Charger X’tal 26Mhz VDD 1V8 SPI Charger Input 4.5V - 6.5V VBAT 2.5V - 4.4V Interface UART PIO PCM/112S AUDIO USB 16Mbit Flash BC05MM
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 Pin Assignments Continued Pin Name AIO 1 AIO 0 USB_DN USB_DP VDD_USB UART_RX UART_TX UART_RTS UART_CTS PIO 10 PIO 9 PIO 11 PIO 12 GND PIO 8 PIO 7 PIO 4 PIO 5 PIO 6 RESET # PCM_CLK PCM_IN PCM_SYNC PCM_OUT SPI_MOSI SPI_CS # SPI_CLK SPI_MISO GND LED 1 LED 0 1V8 LX VDD_CHG VBAT Type I/O I/O I/O I/O VDD CMOS Input CMOS Output CMOS Output CMOS Input I/O I/O I/O I/O GND I/O I/O I/O I/O I/O CMOS Input I/O CMOS Input I/O CMOS Output CMOS Input CMOS Input CMOS Input CMOS Output GND Open Drain Output Open Drain Output VDD Switch Mode power regulator output Charger Input Battery Terminal Positive Analog Programmable Input / Output Line Analog Programmable Input / Output Line USB Data Minus USB Data Plus Positive Supply for UART / USB Ports UART Rx Data UART Tx Data UART Request to Send, Active Low UART Clear to Send, Active Low Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Common Ground Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Programmable Input / Output Line Rest if low. Input debounced so must be low >5ms to cause reset Synchronous Data Clock Synchronous Data Input Synchronous Data Sync Synchronous Data Output SPI Data Input Chip select for serial Peripheral Interface (SPI), active low SPI Clock SPI Data Output Common Ground LED Driver LED Driver 1V8 Input Switch Mode power regulator output Lithium Ion/Polymer battery charger input Lithium Ion/Polymer battery positive terminal. Battery O/I to SMR LM740 Page 4 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com
kHz/50μ kHz kHz dBm dBm Typ -82 -82 -82 >=-10 -21 -39 -43 -47 -17 -30 -156 0.5 916 -30 -50 <=-50 166 154 0.92 -50 -55 Bluetooth Specificaiton <=-70 >=-20 <=11 <=0 <=0 <=-20 <=-30 <=-40 <=-40 <=-9 >=-39 -6 to +4 >=16 <=1000 <=-20 <=-40 <=-40 140<f1avg<175 115 >=0.80 +/-75 <=20 <=25 <=40 <=-30 <=-30 Characteristic Sensitivity at 0.1% BER for all packet types Maximum received signal at 0.1% BER C/I co-chanel Adjacent channel selectivity C/I F=F0+1 Mhz Adjacent channel selectivity C/I F=F0-1 Mhz Adjacent channel selectivity C/I F=F0+2 Mhz Adjacent channel selectivity C/I F=F0-2 Mhz Adjacent channel selectivity C/I F=F0-3 Mhz Adjacent channel selectivity C/I F=F0+5 Mhz Adjacent channel selectivity C/I F=FImage Maximum Level of inter-modulation interferers Spurious output level Maximum RF Transmit Power RF power control resolution RF power control range 20 dB Bandwidth for modulated carrier Adjacent channel trasmit power F=F0+2 Mhz Adjacent channel trasmit power F=F0+3 Mhz Adjacent channel trasmit power F=F0+> 3Mhz Δf1 avg Maximum Modulation Δf2 max Minimum Modulation Δf1 avg / Δf2 avg Initial Carrier Tolerance Drift Rate Drift (Single Slot Packet) Drift (Five Slot Packet) 2nd Harmonic Content 3rd Harmonic Content Frequency 2.402 2.441 2.480 LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Transmitter: VDD-1.8V, Temperature= +20°C Product 27/FEB/2015 740-0411 LM740 Pin Assignments Continued Pin Name VREGENABLE_H (Power_On) MIC_BIAS MIC_B_P MIC_B_N MIC_A_P MIC_A_N Type Analogue Analogue Analogue Analogue Analogue Analogue Take high to enable high-voltage linear regulator and swich-mode regulator Microphone Bias Microphone Bias positive, right Microphone Bias negative, right Microphone Bias positive, left Microphone Bias negative, left LM740 Page 5 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 All measurements in mm Dimensions LM740 Page 6 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com PCB LAYOUT (TOP VIEW) Design to Micro Strip Line 1.5 0.6*1.4 1 1 1.5 0.6 1.5 12=12*1 TOP VIEW BOTTOM VIEW 6.5 2.2 4=4*1 2=2*1 5=5*1 14=14*1 1.5 0.7
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 LM740 Page 7 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com D D C C B B A A BLUE RED Low ESR Low ESR MIC Programming Option (VREG) The external inductor (L1) must have an ESR in the range 0.3 - 0.7Ω <RevCode> B 1 1Tuesday, April 07, 2009 Title Size Document Number Rev Date: Sheet of Power_on SPI_CLK MFB MFB SPKR_L_N SPKR_R_N VOL- LED1 SPKR_L_N SPI_MOSI REW LED0 REW SPKR_R_P LED0 SPKR_R_N RESETB LED1 SPKR_R_P VOL+ VOL+ RESETB FF MIC_A_N Power_on MIC_A_P SPI_CSB BIAS_MIC FF SPKR_L_P Int_Charge VOL- Int_Charge SPI_MISO BIAS_MIC MIC_A_N MIC_A_P SPKR_L_P PIO5 PIO5 1V8 AGND VBAT VDD_AMP DGND VBAT AGND 1V8 AGND AGND AGND AGND DGND DGND 1V8 VBAT VDD_AMP DGND DGND 1V8 AGND 1V8 VBAT AGND AGND AGND DGND AGND DGND 1V8 AGND 1V8 1V8 DGND DGND DGND AGND 1V8 DGND 1V8 AGND DGND 1V8 VBAT AGND AGND AGND DGND DGND DGND DGND 1V8 R10 22K 1% C17 NC Right C15 4.7uF 0R/0603 R13 22K 1% C10 1uF/0603 15nH 10K C19 1uF/0603 JD1 DC JACK XC6209F332MRN Vin GNDCE Vout BTP C20 1uF/0603 PS5 1 3 1 3 2 4 15pF NC/0603 R22 R27 10K C16 NC 10K 10uF/16V/1206 R11 39R C23 220uF/6.3V/C PS7 1 3 1 3 4 2 Left
2 R26
220uF/6.3V/C C26 0.1uF 22uH LED1 3 2 R21 39R R16 10K 470R 470R 1uF/0603 R15 10K 1uF/0603 10uF/16V/1206 2.2K R25 10K 0.1uF R9 22K 1% R24 22K 1% 15pF 100K R23 22K 1% PS? 1 3 1 3 2 4 C13 10uF/16V/1206 C22 0.1uF R12 C27 1uF/0603 PS4 1 3 1 3 2 4 ANT1 PS3 1 3 1 3 2 4 C14 0.1uF LM-740 357 AGND AUX_DAC PIO3 PIO1 PIO2 PIO_POWER SPKR_A_P SPKR_B_N PIO0 SPKR_A_N UART_RX PIO6 RF_IO MIC_A_P PCM_IN PIO12 GND PIO8 PIO11 UART_CTS UART_RTS UART_TX PIO9 PIO10 USB_DN AIO0 VDD_USB USB_DP GND AIO1 PIO4 RESETB PIO5 1V8 SPI_MISO PIO7 SPI_CLK PCM_OUT SPI_MOSI PCM_SYNC GND SPI_CS# PCM_CLKGND SPKR_B_P LX LED0 LED1 VDD_CHG VBAT POWER_ON MIC_B_N MIC_B_P MIC_BIAS MIC_A_N R18 22K 1% PS2 1 3 1 3 4 2 100K C12 0.1uF 10K 15nH R14 22K 1% PS1 1 3 1 3 4 2 C11 15pF BAT CON R20 22K 1% C21 0.1uF PS6 1 3 1 3 2 4 C24 1uF/0603 CON6 TPA6112A2 VO1 VO2 IN1- IN1+ BYPASS IN2+ IN2- VDD VSS shutdown C25 1uF/0603 LM740
Revision History
LM740 Bluetooth Audio Module Class 2 Module CSR BC05 MM - External Antenna Part No Revised Product 27/FEB/2015 740-0411 LM740 1.0 17/NOV/2011 First version with new layout 1.1 20/MAR/2012 Some minor changes in data sheet content 1.2 12/FEB/2014 1. Packaging information corrected 2. Revision information added 1.3 27/FEB/2015 Updated Datasheet LM740 Page 8 of 8 +44(0) 207 428 2647 www.lm-technologies.com | sales@lm-technologies.com