Product Features

• CPU

  32-bit DSP supports hardware Float Point Unit (FPU)

  Up to 240MHz programmable processor

  64Vectored interrupts

  4 Levels interrupt priority

• DSP Audio Processing

  SBC, AAC Audio decodes supported for BT audio

  mSBC voice codecs supported for BT phone

  Supports MP2, MP3, WMA, APE, FLAC, AAC, MP4, M4A, WAV, AIF, AIFC audio decoding

  Packet Loss Concealment (PLC) for voice processing

  Acoustic echo cancellation/suppression (AEC,AES)

  Single/Dual MIC Environmental Noise Cancellation (ENC)

  Multi-band DRC limiter

  30-band EQ configuration for voice Effects

• Audio Codec

  Two channels 16-bit DAC, SNR >= 95dB

  Three channels 16-bit ADC , SNR >= 90dB

  Sampling rates of 8KHz/11.025KHz/16KHz/22.05KHz/24KHz/ 32KHz/44.1KHz/48KHz are supported

  One analog MIC amplifier, build-in MIC bias generator

  Supports two PDM digital MIC inputs

  Three channels Stereo analog MUX

  Supports cap-less, single-ended, and differential mode at the DAC path

  Supports 16ohm and 32ohm Speaker loading

• Bluetooth

  Compliant with Bluetooth V5.1+BR+EDR+BLE specification

  Meet class1 class2 and class3 transmitting power requirement

  Support GFSK and π/4 DQPSK all packet types

  Provides +6dbm transmitting power

  receiver with -90dBm sensitivity

  Fast AGC for enhanced dynamic range

  Supports a2dp/avctp/avdtp/avrcp/hfp/spp/smp/att/gap/g att/rfcomm/sdp/l2cap profile

• Peripherals

  One full speed USB 2.0 OTG controller

  Four multi-function 16-bit timers, support  capture and PWM mode

  Three 16-bit PWM generator for motor  driving

  Three full-duplex basic UART, UART0 and UART1 supports DMA mode

  Two SPI interface supports host and device  mode

  One hardware IIC interface supports host and device mode

  Built-in Cap Sense Key controller

  10-bit ADC for analog sampling

  External wake up/interrupt on all GPIOs

• PMU

  Low voltage LDO for internal digital and analog circuit supply

  3uA current consumption in the soft-off mode

  Built-in LDO for the core, I/O, Bluetooth and flash

  VBAT is 2.2V to 5.5V

  VDDIO is 2.2V to 3.6V

• Packages

  QFN32(4mm*4mm)

• Temperature

  Operating temperature: -20℃ to +70℃

  Storage temperature: -65℃ to +150℃

• Application

  Bluetooth Stereo Sound Box

  Bluetooth Mono Sound Box

  Bluetooth TWS Sound Box