Certifications
Bluetooth SIG Certified [ Verify our SIG certification of LM747 ]
OTHER DECLARATIONS
ECCN / CCATS
Case Studies
LM Technologies showcases innovative new Bluetooth® Auracast™ solutions in collaboration with Realtek at Embedded World 2025
At Embedded World 2025 in Nuremberg, LM Technologies introduces it’s new range of Bluetooth Auracast innovations including the LM509 adapter and the LM923 module. These new products are ideal…
Bluetooth® 5 Dual Mode Audio Module – LM747
£100.00
LM747 is LM Technologies Bluetooth® (5 compliant), v4.1, v4.0, v2.1 Dual Mode Class 2 Audio module with stereo flash. This module is ideal for audio applications in vehicle infotainment systems, handsfree kits, headsets, Bluetooth speakers and Bluetooth® Stereo Headsets and much more.
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Available: Out of stock
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Tech Spec
Additional Information
Wireless Standard Backward Compatibility Frequency 2.4 GHz
Module Type - Programmable (Configurable with AT Commands)
Profiles A2DP, AVRCP, HSP
Programming Interface SPI
Interfaces - UART
- USB
Antenna RF Antenna
Dimensions - 12.4mm x 12.4mm x Height (Typical 2.05mm – Max 2.35mm)
Weight - 0.48g +/- 0.25g tolerance
Operating Temperature - -20°C to +75°C
Tx Output Power - 2dBm (Bluetooth® v2.0, v.2.1)
Rx Sensitivity - -90dBm (Bluetooth® v2.0, v.2.1)
Development Kit LM559
Bluetooth Technology Bluetooth Classic
Compliance Certifications -
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Description
The LM747 Bluetooth® 5 compliant programmable audio module is a compact and cost effective solution. Enabling audio data to be wirelessly communicated between audio devices. Using a Bluetooth® v2.0, v2.1 and Bluetooth® v4.0, v4.1, (or 5 compliant) connection. It’s sound enhancement features, makes it a perfect fit within your premium audio device. The sound enhancement features includes CSR’s aptX® audio technology. Providing CD-like quality over a Bluetooth® connection. And CSR’s cVc audio technology for noise cancellation. Perfectly suited to wireless headphones, speakers and hand-free headsets. This standalone module allows the developer to connect a microphone, speakers and other I/O devices. Running the user application without using an external MCU. LM offer application support to the developer and can create new user applications for the module. Your developed user application and settings can be preloaded to the LM747, simplifying the manufacturing and testing process. Its SMT side and bottom pads allows for easy integrations into your embedded system.Typical Applications
- Wireless headphones and speakers
- Hand-free headsets
- Automotive infotainment systems
- Home entertainment devices
- Audio adapters
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Features
- Application Firmware Support
- aptX® and Faststream CODEC
- Integrated 16-bit Stereo Audio CODEC
- SBC, MP3 and AAC decoder
- CSR’s cVc technology for noise-cancellation
- Microphone input and Speaker output interfaces
- SMT Side and Bottom Pads for easy production
Case Studies
LM Technologies showcases innovative new Bluetooth® Auracast™ solutions in collaboration with Realtek at Embedded World 2025
At Embedded World 2025 in Nuremberg, LM Technologies introduces it’s new range of Bluetooth Auracast innovations including the LM509 adapter and the LM923 module. These new products are ideal…
Resources
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