Specifications

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1 product overview
HMBT01 includes V5.1+BR+EDR+BLE bluetooth chip AC6956C with 32-bit DSP supporting
hardware floating-point unit, with the highest frequency of 240MHz. The chip has built-
in audio processing, audio codec, SRAM, flash and abundant peripheral resources. The
HMBT01 module contains a flash chip for storing audio.
HMBT01 is a dual Bluetooth module which integrates Bluetooth control and Bluetooth
playback.
1.1 characteristics
Built-in 32-bit CPU with low power consumption can double as application processor.
Main frequency 240MHz
Peripheral:
–A full-speed USB 2.0 OTG controller
–4 multifunction 16-bit timers, supporting capture and PWM modes
–Three 16-bit PWM motor drives
–Three full-duplex serial ports, UART, UART0 and UART1, all support DMA mode.
–Two SPI interfaces support master and slave modes.
–A hardware IIC interface supports master and slave modes.
–Built-in touch-sensitive key controller
–10-bit ADC
–External wake-up/interrupt of all gpio
• DSP audio processing
–SBC, AAC audio decoding
–mSBC voice codec supporting Bluetooth phone
–Support MP2, MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF and AIFC audio decoding
–Packet Loss Hiding (PLC) for voice processing
–Acoustic echo cancellation/suppression (AEC, AES)
–Single/double microphone ambient noise cancellation (ENC)
–Multi-band DRC limiter
–30-band EQ configuration for sound effects
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–Dual-channel 16-bit DAC with SNR>=95dB
–Three-channel 16-bit ADC with SNR>=90dB
–Support the sampling rate of 8khz/11.025khz/16khz/22.05khz/24khz/32khz/44.1khz/48khz.
–An analog microphone amplifier with built-in microphone bias generator
–Support two PDM digital microphone inputs
–Three-channel stereo analog multiplexer
–Capacitance-free, single-ended and differential modes are supported on DAC paths.
–Supports 16 ohm and 32 ohm speaker loads.
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• BLE