Product Features

• CPU

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

  Up to 160MHz 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 MIC (Analog/Digital) Environmental  Noise Cancellation (ENC)

  Multi-band DRC limiter

  20-band EQ configuration for voice Effects

• Audio Codec

  Two channels 24-bit DAC, SNR >= 101dB

  One channel 24-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

  One channel analog MUX

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

  Supports 16ohm and 32ohm Speaker loading

• Bluetooth

  Compliant with Bluetooth  V5.3+BR+EDR+BLE specification

  Meet class2 and class3 transmitting power  requirement

  Support GFSK and π/4 DQPSK all packet  types

  Provides maximum +8dbm@BDR,  +6dbm@EDR transmitting power

  receiver with minimum -92dBm@EDR  sensitivity

  Fast AGC for enhanced dynamic range

  Supports  a2dp/avctp/avdtp/avrcp/hfp/spp/smp/att/gapga tt/rfcomm/sdp/l2cap profile

  a2dp 1.3.2/avctp 1.4/avdtp 1.3/ avrcp 1.6.2/  hfp 1.8 /spp 1.2/rfcomm 1.1/pnp 1.3/  hid 1.1.1/sdp core5.3/l2cap core 5.3

• Peripherals

  One full speed USB 2.0 OTG controller

  Six multi-function 32-bit timers, support  capture and PWM mode

  Three full-duplex basic UART, support DMA  mode

  One hardware IIC interface supports host and  device mode

  Two Built-in low power Cap Sense Keys

  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

  2uA current consumption in the soft-off mode

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

  VBAT is 2.2V to 4.5V

  VDDIO is 2.2V to 3.4V

• Packages

  QFN20(3mm*3mm)

• Temperature

  Operating temperature: -40℃ to +85℃

  Storage temperature: -65℃ to +150℃

• Application

  Bluetooth TWS headsets