Features
• Qualified for Bluetooth v5.0 Specification:
– HFP 1.7, HSP 1.2, A2DP 1.3, SPP 1.2, AVRCP 1.6, and PBAP 1.2
– Bluetooth classic (BR/EDR) and Bluetooth Low Energy
– General Attribute Profile (GATT) and General Access Profile (GAP)
– Bluetooth Low Energy Data Length Extension (DLE) and secure connection
• SDK:
– 8051 MCU debugging
– 24-bit program counter and data pointer modes
• Multi-Link:
– A2DP (maximum 3 devices)
– HFP (maximum 3 devices)
• Multi-Speaker (MSPK) Solution:
– Microchip's proprietary solution to connect a master speaker to one or more slave speakers
– With MSPK firmware, the BM83 can provide Concert mode and Stereo mode
• Audio Transceiver (AT) Solution:
– With AT firmware, the BM83 can work as either an A2DP source (where BM83 is the transmitter) or A2DP/HFP sink (where BM83 is a receiver)
• Audio Interfaces:
– Stereo line input
– Two analog microphones
– One stereo digital microphone
– Stereo audio Digital-to-Analog converter (DAC)
– Inter-IC (I2S) Sound input/output
– I2S Master Clock (MCLK)/reference clock
• USB, UART, and Over-the-Air (OTA) Firmware Upgrade
• Built-In Lithium-Ion and Lithium Polymer Battery Charger (Up To 350 mA Charging Current)
• Compact Surface Mount Module:
– 32 mm x 15 mm x 2.5 mm
– Castellated surface mount pads
– Module shield
• Integrated 3V and 1.8V Configurable Switching Regulator and Low-Dropout (LDO) RF/Analog
• Frequency Spectrum: 2.402 GHz to 2.480 GHz
• Receive Sensitivity: –90 dBm (2 Mbps EDR, at 0.01% BER)
• Programmable Transmit Output Power:
– Up to +10.4 dBm (typical) for Basic Data Rate (BDR)
– Up to +9.2 dBm (typical) for Enhanced Data Rate (EDR)
DSP Voice and Audio Processing
• 16/32-bit DSP Core with Enhanced 32-Bit Precision, Single Cycle Multiplier
• 64 Kbps A-Law, μ-Law Pulse Code Modulation (PCM), or Continuous Variable Slope Delta (CVSD) Modulation for Synchronous Connection-Oriented (SCO) Channel Operation
• 8/16 kHz Noise Reduction (NR)
• 8/16 kHz Acoustic Echo Cancellation (AEC)
• Modified Sub-Band Coding (mSBC) Decoder for Wideband Speech
• Packet Loss Concealment (PLC) for SBC and AAC Codecs Only
Audio Codec
• SBC and AAC
• 20-bit Audio Stereo DAC with Signal-to-Noise Ratio (SNR) 95 dB
• 16-bit Audio Stereo Analog-to-Digital Converter (ADC) with SNR 90 dB
• 16-bit/24-bit I2S Digital Audio:
– 8 kHz, 16 kHz, 44.1 kHz, and 48 kHz sampling frequency for SBC and AAC
Peripherals
• Successive Approximation Register Analog-to-Digital Converter (SAR ADC) with Dedicated Channels:
– Battery voltage detection and adapter voltage detection
– Charger thermal protection and ambient temperature detection
• UART (With Hardware Flow Control)
• USB (Full-Speed USB 1.1 Interface)
• Inter-Integrated Circuit (I2C™) Master
• One Pulse Width Modulation (PWM) Channel
• Two LED Drivers
• Up to 18 General Purpose Inputs/Outputs (GPIOs)
• 2-wire 8051 MCU Joint Test Action Group (JTAG) Debug
Operating Conditions
• Operating Voltage: 3.2V to 4.2V
• Operating Temperature: –40°C to +85°C
Compliance
• Bluetooth Special Interest Group (SIG) QDID: 134083 (Class1) and 134099 (Class2)
• Certified to the United States (FCC), Canada (ISED), Europe (CE), Korea (KCC), Taiwan (NCC), and Japan
(MIC) Radio Regulations
• RoHS Compliant
Applications
• Portable Speaker
• Multiple Speakers
• Headphones