Features
1. Bluetooth v2.0 + EDR compliant backward compatible with Bluetooth v1.2/1.1 specification
2. Class 2 Radio with 25 m range in open space
3. External Antenna
4. High Quality Audio Streaming
5. Low Power Consumption
6. Integrated Switched-Mode regulator
7. Integrated Battery charger
8. Embedded Kalimba DSP Co-Processor
9. Integrated 16 bit Stereo Audio CODEC 95dB SNR for DAC
10. Enhanced Audibility and Noise Cancellation
11. Lead free RoHS compliant
12. 16 MB flash memory
13. Small Size : 16 mm x 15 mm x 2 mm
14. Handsfree (HFP1.5) firmware provided by default on the module
15. PIOs available to add user specific functionality like call alert or active call status via LEDs
16. Support Digital Audio Bus : PCM, I2S or SPDIF
17. Interoperable with PDAs, Phones, PCs and Laptops
2. Class 2 Radio with 25 m range in open space
3. External Antenna
4. High Quality Audio Streaming
5. Low Power Consumption
6. Integrated Switched-Mode regulator
7. Integrated Battery charger
8. Embedded Kalimba DSP Co-Processor
9. Integrated 16 bit Stereo Audio CODEC 95dB SNR for DAC
10. Enhanced Audibility and Noise Cancellation
11. Lead free RoHS compliant
12. 16 MB flash memory
13. Small Size : 16 mm x 15 mm x 2 mm
14. Handsfree (HFP1.5) firmware provided by default on the module
15. PIOs available to add user specific functionality like call alert or active call status via LEDs
16. Support Digital Audio Bus : PCM, I2S or SPDIF
17. Interoperable with PDAs, Phones, PCs and Laptops
Benefits
1. Excellent Solution for application which requires call handling and audio streaming
2. Ideal for embedded systems
3. Small footprint means less PCB area
4. All the firmware and hardware design developed and owned by LM Technologies Ltd
5. Low Power
6. Robust Design
7. No Host Stack required
8. Customized HFP firmware available, since LM Technologies Ltd does in-house firmware development
9. Extensive Technical Support available
10. Support for encryption data and authentication
11. Adaptive Frequency hopping allows Co Existence with Wireless LAN without any interference
12. Low Cost Solution
13. Interoperable with PDAs, Phones, PCs and Laptops
14. RoHS compliance provides environmental benefits mainly during production and end of life stages of this product
2. Ideal for embedded systems
3. Small footprint means less PCB area
4. All the firmware and hardware design developed and owned by LM Technologies Ltd
5. Low Power
6. Robust Design
7. No Host Stack required
8. Customized HFP firmware available, since LM Technologies Ltd does in-house firmware development
9. Extensive Technical Support available
10. Support for encryption data and authentication
11. Adaptive Frequency hopping allows Co Existence with Wireless LAN without any interference
12. Low Cost Solution
13. Interoperable with PDAs, Phones, PCs and Laptops
14. RoHS compliance provides environmental benefits mainly during production and end of life stages of this product
Application
1. High Quality Stereo Wireless headsets
2. High Quality Mono Headsets
3. Handsfree Car Kits
4. Wireless Speakers
5. VOIP Handsets
6. Analogue and USB Multimedia Dongles
7. Bluetooth Enabled Automotive Wireless Gateways
2. High Quality Mono Headsets
3. Handsfree Car Kits
4. Wireless Speakers
5. VOIP Handsets
6. Analogue and USB Multimedia Dongles
7. Bluetooth Enabled Automotive Wireless Gateways
| LM740 Bluetooth Multimedia Module | |
|---|---|
| Manufacturer | LM Technologies Ltd |
| Chipset | CSR Bluecore 5 Multimedia External (BC05 MM Ext) |
| Power Classification | Class 2 |
| Module Type | Surface Mount |
| Bluetooth Specification | Core v2.0 + EDR backward compatible with Bluetooth v1.2/1.1 specification |
| Frequency | 2402 – 2480 MHz |
| Temperature Range | 0 to +70 C |
| Data Rate | Upto 3 Mbps |
| Range | 25 m in open space |
| Rx Sensitivity | -82 dBm typical |
| Antenna | External Antenna |
| Voltage operation | 1.8 – 3.6v |
| Current Consumption (standby mode) | 10 uA |
| Current Consumption (ACL Connection, master role) | 2.5 mA |
| Current Consumption (data transfer, master role) | 4.3 mA |
| Current Consumption (ACL Connection, slave role) | 9.8 mA |
| Current Consumption (data transfer, slave role) | 12.1 mA |
| Power Output | +4 dBm |
| Default Firmware | V9.00 |
| Size | 16 mm x 15 mm x 2 mm |
| Bluetooth Profile | Headset Profile (HSP), Handsfree Profile (HFP), Advanced Audio Distribution Profile (A2DP), Audio Video Remote Control Profile (AVRCP) |
| Interface | USB, UART |
| Digital Audio Bus | PCM, I2S or SPDIF |
| Codec | Yes, Integrated 16 bit stereo Audio CODEC |
| DSP Processor | Embedded Kalimba DSP Co-Processor |
| Flash Memory | 16 MB |
| RoHS Compliant | Yes |
| Accessories | |
|---|---|
| No Accessories | |
| Related Products | |
|---|---|
![]() |
Part No.LM300 This Ethernet Access Point connects RS232, 422, 485 serial devices to an ethernet LAN/WAN providing a reliable communication via a virtual com port on the host pc. The LMPort can be configured as a TCP Client / Server or UDP. The LMPort operates in Direct IP Mode, Virtual COM Mode and Paired Mode. For added security in Server Mode Individual Client Sessions are supported and management access is password protected. |
![]() |
Part No.LM058 |





