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Overview
The BM20/23 stereo audio module is a Bluetooth v5.0 (BDR/EDR) audio module for designers to add wireless audioThe BM20/23 stereo audio module is a Bluetooth v5.0 (BDR/EDR) audio module for designers to add wireless audioand voice applications to their products. This Bluetooth SIG-certified module provides a complete wireless solutionwith Bluetooth stack, integrated antenna, and worldwide radio certifications in a compact surface mount package.This stereo module contains a built-in Li-Ion charger and a digital audio interface (BM23). It supports HSP, HFP, SPP,A2DP, and AVRCP profiles. Both AAC and SBC Codecs are supported for A2DP.
Note: The customers must connect their own external analog Codec/DSP/amplifier and MCU for audio output.
Audio processor:
• Support 64 Kbps A-Law, μ-Law PCM format/Continuous Variable Slope Delta Modulation (CVSD) for SCO
• Support 64 Kbps A-Law, μ-Law PCM format/Continuous Variable Slope Delta Modulation (CVSD) for SCOChannel Operation
• Noise Reduction (NR) and Acoustic Echo Cancellation (ACE)
• Sub-Band Coding (SBC) and Optional Advanced Audio Coding (AAC) Decoding
• Packet Loss Concealment (PLC)
• Four Languages (Chinese/ English/ Spanish/ French) Voice Prompts Support (20 events for each language)using the IS20XXS_UI tool
• Serial Copy Management System (SCMS-T) Content Protection
Mic in:
BM20:2个
BM23:1个
Analog Audio Out
BM20:没有
BM23:有
Digital Audio Out
BM20:有
BM23:没有
Features
Bluetooth Classic (BDR/EDR)
Embedded Bluetooth stack
SBC, ACC Codecs
Stereo analog output, one stereo analog microphone, aux input
UART, two LEDs, GPIOs
Built-in voice prompts
Transparent UART mode for seamless serial data over UART interface
Easy to configure with Windows GUI or directly via an MCU
Compact surface mount module: 29 x 15 x 2.5 mm
Castellated surface mount pads for easy and reliable host PCB mounting
RoHS compliant
Worldwide RF regulatory certifications
PCB Antenna
Embedded Bluetooth stack
SBC, ACC Codecs
Stereo analog output, one stereo analog microphone, aux input
UART, two LEDs, GPIOs
Built-in voice prompts
Transparent UART mode for seamless serial data over UART interface
Easy to configure with Windows GUI or directly via an MCU
Compact surface mount module: 29 x 15 x 2.5 mm
Castellated surface mount pads for easy and reliable host PCB mounting
RoHS compliant
Worldwide RF regulatory certifications
PCB Antenna
Features
__Block Diagram
__Application Note
• Bluetooth Sound Bar • Bluetooth Stereo •Speaker Phone
Development Board
__
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