ATS2851

System

  ·    32bit RISC processor Core, up to 234MHz.
  ·    Internal 203KB RAM for data and program storage
  ·    Internal 2MByte Nor flash
  ·    Support 24MHz OSC with on-chip PLL
  ·    Internal 32KHz RC oscillator
  ·    8-channel ordinary DMA, support for transmission in burst 8 mode
  ·    Fully configurable PEQ, up to 20 segments
  ·    Support for echo cancellation and noise reduction
  ·    Support for packet loss concealment
  ·    Support USB/SDCard/Uart firmware upgrade
  ·    Support AES-128/192/256 Encrypt and Decrypt in ECB/CTR/CBC/CBC-CTS mode
  ·    Support hardware TRNG used to produce random bits
  ·    Support CRC-16/32
  

Bluetooth

  ·   Support Bluetooth V5.3，compatible with Bluetooth V5.0/4.2/4.2 LE/4.0/2.1 + EDR system
  ·    Max transmitting output power: 8±2dBm
  ·    Bluetooth receiving sensitivity:
-    93dBm@GFSK, -92dBm@π/4 DQPSK,
-    87dBm@8DPSK modulation
  ·    Support Bluetooth transceiver
  ·    Support dual pairs of handsets connection simultaneous
  ·    Compatible with AVRCP Profile V1.6, support both TG and CT roles
  ·    Compatible with A2DP Profile V1.3, support both SRC and SNK roles
  ·    Compatible with HFP Profile V1.7, support both AG and HF roles
  ·    Support for SBC & AAC Bluetooth audio transmission format
  ·    Support for mSBC broadband speech coding
  ·    Supports all packet types in basic rate and enhanced data rate
  ·    Supports SCO/eSCO link
  ·    Supports Secure Simple Pairing
  ·    Supports Low Power Mode ( Sniff / Sniff Sub-rating / Hold / Park )
  ·    Bluetooth Dual Mode support: Simultaneous LE and BR / EDR
  ·    Supports multiple Low Energy states
  ·    Fast AGC control to improve receiving dynamic range
  ·    Supports AFH to dynamically detect channel quality to improve transmission quality
  ·    Supports Power/Enhanced Power Control
  ·    LE Data Packet Length Extension
  ·    Extended Scanner Filter Policies
  ·    LE 2M PHY
  ·    LE Extended Advertising
  ·    LE Periodic Advertising
  ·    Channel Selection Algorithm #2

Audio

  ·    Built-in stereo 24-bit input sigma-delta DACs, SNR (A-Weighting)>=100dB, THD+N <=
-    85dB@0dBFS output amplitude
  ·    DAC supports sample rate of 8k/11.025k
/12k/16k/22.05k/24k/32k/44.1k/48k/88.2/96kH z
  ·    Build in stereo 20mW PA (Power Amplifie
r)    for headphone. PA output supports tradi tional mode & direct-drive mode (for earph one)
  ·    Support differential audio output for sp eaker PA
  ·    Built-in stereo 24-bit input sigma-delta ADC, SNR(A-Weighting)>=98dB, THD+N <= -89dB
  ·    ADC supports sample rate of 8k/11.025k
/12k/16k/22.05k/24k/32k/44.1k/48k/88.2/96kH z
  ·    All input Support Single-Ended or differential input.
  ·    Support 2 pairs input 0/1; each pair can be formed as mix or differential input.
  ·    Support 2 DMIC input;
  ·    I2S TX&RX support master and slave mode separately, and support sample rate of 192k/96k/48k/44.1k/32k/24k/22.05k/16k/12k/ 11.025k/8k
  ·    Support full format audio decoding and local playback
  ·    Support Voice Active Trigger

Power Management

  ·    Support Li-Ion battery power supply with battery insert wake up.
  ·    Support power on button & reset button.
  ·    Standby power SVCC.
  ·    Integrated DC-DC buck converters output VD15 from BAT.
  ·    Linear regulators outputs VCC, SVCC, VD15, AVCC.
  ·    One 10-bit A/D converter for system monitor and wire-control, 9 channels can be externally used by user.        The ADC sample rate can support 2/4/8KHz per channel.
  ·    1*WIO which can used for ADC key or waking up IC to running mode when it’s in deep sleep mode.
  ·    Standby current 20uA (typical).
  ·    Low Power Consumption:
       Typical Sniff Current: 300uA@Vbat=3.8V A2DP: 15mA@Vbat=3.8V with PEQ
       HFP: 19mA@Vbat=3.8V

Physical   Interfaces

  ·    1*SD/MMC/eMMC card interface
  ·    USB2.0 FS host or device, support 3 IN endpoint and 2 OUT endpoint except endpoint0
  ·    Maximum 2*UART support master or slave mode with RTS/CTS hardware flow control
  ·    Maximum 2*TWI supports master or slave mode
  ·    1*SPI interface controller for external use.
  ·    Support 11 Programmable GPIO interfaces, and 8 analog IOs can also be config as GPIOs.
  ·    All 11 Programmable GPIOs can be SIRQs
  ·    Maximum 7*PWM output integrated
  ·    1* infrared remote control RX

Package

  ·    QFN-32, 4mm*4mm*0.75mm

Application

  ·    Bluetooth transceiver
  ·    Bluetooth dongles
  ·    Smart Watches
  ·    Bluetooth car audio unit
  ·    Portable stereo speakers