Product Features

• CPU

  32-bit DSP supports hardware Float PointUnit (FPU).

  Up to 160MHz programmable processor.

  64Vectored interrupts.

  4 Levels interrupt priority.

• DSP Audio Processing

  SBC, AAC Audio decodes supported for BTaudio.

  mSBC voice codecs supported for BT phone.

  Supports MP2, MP3, WMA, APE, FLAC,AAC, MP4, M4A, WAV, AIF, AIFC audiodecoding.

  Packet Loss Concealment (PLC) for voiceprocessing.

  Acoustic echo cancellation/suppression(AEC,AES).

  Single/Dual MIC Environmental NoiseCancellation (ENC).

  Multi-band DRC limiter.

  10-band EQ configuration for voice Effects.

• Audio Codec

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

  One 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 MICbias generator.

  Two channels Mono analog MUX.

  Supports cap-less, single-ended, anddifferential mode at the DAC path.

  Supports 16ohm and 32ohm Speakerloading.

• 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 pakettypes.

  Provides +6dbm transmitting power.

  receiver with -90dBm sensitivity.

  Fast AGC for enhanced dynamic range.

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

• Peripherals

  One full speed USB 2.0 OTG controller.

  Six multi-function 32-bit timers, supportcapture and PWM mode.

  Three full-duplex basic UART, UART0 andUART1 supports DMA mode.

  One hardware IIC interface supports hostand device mode.

  10-bit ADC for analog sampling.

  External wake up/interrupt on all GPIOs.

• PMU

  Low voltage LDO for internal digital andanalog circuit supply.

  3uA current consumption in the soft-offmode.

  Built-in LDO for the core, I/O, Bluetoothand flash.

  VBAT is 2.2V to 5.5V.

  VDDIO is 2.2V to 3.6V.

• Packages

  QFN20(3mm*3mm).

• Temperature

  Operating temperature: -40℃ to +70℃.

  Storage temperature: -65℃ to +150℃.

• Applications

  Bluetooth Stereo speaker.

  Bluetooth TWS speaker.