Specifications

1 Product overview
HMBT01 contains v5.1+br+edr+ble Bluetooth chip ac6956c with 32-bit DSP supporting
hardware floating-point units, with a maximum dominant frequency of 240mhz. The chip has
built-in audio processing, audio codec, SRAM, flash and rich peripheral resources. The hmbt01
module contains a flash chip that stores audio.
HMBT01 is a dual Bluetooth module that integrates Bluetooth control and Bluetooth
playback.
1.1 characteristic
• 32-bit DSP supports hardware Float Point Unit(FPU)
• Up to 240MHz programmable processor
• peripheral
：
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One full speed USB 2.0 OTG controller
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Four multi-function 16-bit timers, support capture and PWM mode
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Three 16-bit PWM generator for motor driving
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Three full-duplex basic UART, UART0 and UART1 supports DMA mode
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Two SPI interface supports host and device mode
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One hardware IIC interface supports host and device mode
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Built-in Cap Sense Key controller
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10-bit ADC for analog sampling
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External wake up/interrupt on all GPIOs
• DSP Audio Processing
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SBC, AAC Audio decodes supported for BT audio
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mSBC voice codecs supported for BT phone
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Supports MP2, MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC audio
decoding
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Packet Loss Concealment (PLC) for voice processing
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Acoustic echo cancellation/suppression (AEC,AES)
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Single/Dual MIC Environmental Noise Cancellation (ENC)
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Multi-band DRC limiter
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30-band EQ configuration for voice Effects
•Audio Codec
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Two channels 16-bit DAC, SNR >= 95dB
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Three channels 16-bit ADC , SNR >= 90dB
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Sampling rates of 8KHz/11.025KHz/16KHz/22.05KHz/24KHz/
32KHz/44.1KHz/48KHz are supported
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One analog MIC amplifier, build-in MIC bias generator
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Supports two PDM digital MIC inputs
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three channels Stereo analog MUX