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

  Four 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 requiremen.

  Support GFSK and  π/4 DQPSK all paket 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/gatt/rfcomm/sdp/l2cap profile.

• Peripherals

  One full speed USB 2.0 OTG controller.

  Two PCM/IIS for external digital Audio code,supports host and device mode.

  Four multi-function 16-bit timers, supportcapture and PWM mode.

  Three 16-bit PWM generator for motordriving.

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

  Three SPI interface supports host and devicemode.

  Two SD Card Host controller.

  One hardware IIC interface supports host anddevice mode.

  Four SPDIF receiving interface withoutanalog amplify.

  Supports HDMI ARC (Audio Return Channel)receiving.

  Segment LCD panels.

  Digital matrix LED panels.

  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 andanalog circuit supply.

  3uA current consumption in the soft-off mode.

  Built-in LDO for the core, I/O, Bluetooth andflash.

  VBAT is 2.2V to 5.5V.

  VDDIO is 2.2V to 3.6V.

  RTCVDD is 2.2V to 3.6V.

• Packages

  QFN52(6mm*6mm).

• Temperature

  Operating temperature: -20℃ to +70℃.

  Storage temperature: -65℃ to +150℃.

• Applications

  Bluetooth Stereo speaker.

  Bluetooth soundbar.

  Bluetooth car speaker.

  Bluetooth alarm clock speaker.

  Bluetooth Rod speaker.