MICROCHIP TECHNOLOGY INC. BM64S2 사용자 설명서
Preliminary
2017 Microchip Technology Inc.
DS60001403C-Page 1
BM62/64
Bluetooth
®
4.2 Stereo Audio Module
Features
• Qualified for Bluetooth v4.2 specification
• Supports A2DP 1.3, AVRCP 1.6, HFP 1.6, HSP
• Supports A2DP 1.3, AVRCP 1.6, HFP 1.6, HSP
1.2 and SPP 1.2
• Supports Bluetooth 4.2 dual-mode (BDR/EDR/
BLE) specifications
• Stand-alone module with on-board PCB antenna
and Bluetooth stack
• Supports high resolution up to 24-bit, 96 kHz
audio data format
• Supports to connect two hosts with HFP/A2DP
profiles simultaneously
• Transparent UART mode for seamless serial data
over UART interface
• Supports virtual UART communication between
host MCU and smartphone applications by Blue-
tooth SPP or BLE link
tooth SPP or BLE link
• Easy to configure with Windows
®
GUI or directly
by external MCU
• Supports firmware field upgrade
• Supports one microphone
• Compact surface mount module:
• Supports one microphone
• Compact surface mount module:
- BM62: 29 x 15 x 2.5 mm
- BM64: 32 x 15 x 2.5 mm
• Castellated surface mount pads for easy and
reliable host PCB mounting
• RoHS compliant
• Ideal for portable battery operated devices
• Internal battery regulator circuitry
• Ideal for portable battery operated devices
• Internal battery regulator circuitry
DSP Audio Processing
• Supports 64 kbps A-Law,
-Law PCM format/
Continuous Variable Slope Delta (CVSD) modula-
tion for SCO channel operation
tion for SCO channel operation
• Supports 8/16 kHz noise suppression
• Supports 8/16 kHz echo cancellation
• Supports Modified Sub-Band Coding (MSBC)
• Supports 8/16 kHz echo cancellation
• Supports Modified Sub-Band Coding (MSBC)
decoder for wide band speech
• Built-in High Definition Clean Audio (HCA) algo-
rithms for both narrow band and wide band
speech processing
speech processing
• Packet loss concealment (PLC)
• Built-in audio effect algorithms to enhance audio
• Built-in audio effect algorithms to enhance audio
streaming
• Supports Serial Copy Management System
(SCMS-T) content protection
FIGURE 1:
BM62 MODULE
FIGURE 2:
BM64 MODULE
Audio Codec
• Sub-band Coding (SBC) and optional Advanced
Audio Coding (AAC) decoding
• 20-bit digital-to-analog converter (DAC) with
98 dB SNR
• 16-bit analog-to-digital converter (ADC) with
92 dB SNR
• Supports up to 24-bit, 96 kHz I
2
S digital audio
(BM64 only)