Audio wireless module LM971

Bluetooth

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 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