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® 5.1 Audio Module – LM971
£100.00
The LM971 is a programmable Bluetooth® 5.1 audio module based on an extremely low power architecture which has been designed for use in Bluetooth® stereo headsets and speakers, and supports Qualcomm aptX™. This module is engineered for low power performance even in demanding use cases, supporting longer battery life in virtually all operating modes.
Available: Out of stock
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Tech Spec
Additional Information
Wireless Standard Backward Compatibility Frequency 2.4 GHz
Module Type - Programmmable
Interfaces - AIO
- GPIO
- I2S
- PCM
- SPI
- I2C
- UART
Antenna IC Antenna
Dimensions - 13.9mm X 13mm X 3.1mm
Operating Temperature - -40°C to +85°C
Bluetooth Technology Dual Mode, Bluetooth Low Energy (LE)
Compliance Technology Bluetooth®
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Description
Bluetooth® 5.1 Audio Module - LM971
The LM971 is a programmable Bluetooth® 5.1 audio module based on an extremely low power architecture which has been designed for use in Bluetooth® stereo headsets and speakers, and supports Qualcomm aptX™. This module is engineered for low power performance even in demanding use cases, supporting longer battery life in virtually all operating modes. The LM971 offers powerful multi-core processing, designed to enable complex use cases, and helps to support premium audio technologies. The onboard antenna makes this module ready to be added as a complete wireless audio solution to any project. With options for analog and digital audio inputs and outputs, as well as aptX™ codecs, third-party DAC support and Truewireless™ functionality, the LM971 offers a wide range of top quality audio features.Typical Applications
- Wireless headphones and speakers
- Hand-free headsets
- Automotive infotainment systems
- Home entertainment devices
- Portable DAC and headphone amplifiers
- Audio adapters
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Features
- Qualcomm TrueWireless™ Stereo support
- aptX™ HD and cVc noise cancellation options are supported
- Ultra-low power consumption with A2DP streaming as low as 4.8 mA
- Configurable DSP Interfaces
- Integrated battery charging
- Thermistor supported options
- Programmable audio master clock (MCLK)
- 1 x bidirectional 24-bit I²S interface
- Digital microphone inputs with the capability to interface with up to 6 digital microphones
- Stereo analogue outputs configurable as differential Class-AB headphone outputs or differential high effciency Class-D outputs
- Over-The-Air (OTA) firmware upgrade support
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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Bluetooth® 5.1 Audio Module – LM971
The LM971 is a programmable Bluetooth® 5.1 audio module based on an extremely low power architecture which has been designed for use in Bluetooth® stereo headsets and speakers, and supports Qualcomm aptX™. This module is engineered for low power performance even in demanding use cases, supporting longer battery life in virtually all operating modes.
The LM971 offers powerful multi-core processing, designed to enable complex use cases, and helps to support premium audio technologies. The onboard antenna makes this module ready to be added as a complete wireless audio solution to any project.
With options for analog and digital audio inputs and outputs, as well as aptX™ codecs, third-party DAC support and Truewireless™ functionality, the LM971 offers a wide range of top quality audio features.
Typical Applications
- Wireless headphones and speakers
- Hand-free headsets
- Automotive infotainment systems
- Home entertainment devices
- Portable DAC and headphone amplifiers
- Audio adapters
Additional information
| Wireless Standard | |
|---|---|
| Backward Compatibility | |
| Frequency | 2.4 GHz |
| Module Type |
|
| Interfaces |
|
| Antenna | IC Antenna |
| Dimensions |
|
| Operating Temperature |
|
| Bluetooth Technology | Dual Mode, Bluetooth Low Energy (LE) |
| Compliance | |
| Technology | Bluetooth® |
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