ATS2837数据手册Actions中文资料规格书

描述 Description

ATS2837提供一个高集成度的蓝牙音频单芯片解决方案，主要定位在便携式蓝牙音箱、耳机和本地插卡播放器市场。同时它也可以作为蓝牙智能语音助手。

ATS2837支持在通过蓝牙A2DP播放音乐的同时，对语音进行双麦克风降噪和回声消除，以此来实现语音唤醒。

ATS2837采用CPU和DSP的双核架构，内置大容量RAM，可满足不同应用场景需求。

ATS2837支持几乎所有ATS2835支持的其它功能。

特性 Features

System
• 240MHz RISC-32CPU processor Core
• 400MHz CEVA DSP core
• Internal 304KB RAM for data and program
• Internal 32KB CPU ICache for SPI NorFlash
• Internal 32KB Cache for SPI pSRAM
• Internal 16M bits pSRAM to support rich and flexible software feature
• SPI supporting randomizer
• Supports 24MHz OSC with on-chip PLL
• Operating voltage: I/O 3.1V, Core 1.2V
• Fully configurable PEQ
• Supports for echo cancellation， noise reductionand wind noise reduction
• Supports for packet loss concealment
• Supports for sound effect, such as MDRC, bass enhancement, virtual surroundeffects
• Symmetric and asymmetric cryptography
• 128bit efuse is used for symmetric key when using symmetric cryptography
• Asymmetric cryptography signature algorithm is SHA256WithRSA Encryption,the public key is 2048bit

Bluetooth
• SupportsBluetooth V5.0
• Compatible with Bluetooth V4.2/V4.2 LE/V4.0/V3.0/V2.1 + EDR systems
• Compatible with AVRCP Profile V1.6
• Compatible with A2DP Profile V1.3
• Compatible with HFP Profile V1.7
• 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 transmissionquality
• Integrated Class2 PA
• Supports Power / Enhanced Power Control

Audio
• Built-instereo 24 bit input sigma-delta DAC
• DAC supports sample rate 8k/12k/11.025k/ 16k/22.05k/24k/32k/44.1k/48/96kHz
• Built-in stereo 20mW PA for headphone. PA output supports traditional modeand direct drive mode (for earphone)
• Supports differential audio output
• Built-in stereo 24 bit input sigma-delta ADC
• ADC supports sample rate 8k/12k/11.025k/ 16k/22.05k/24k/32k/44.1k/48/96kHz
• Supports 3 stereo single-ended analog input or 1 stereo fully differentialanalog input plus 1 stereo single-ended analog input
• Supports Digital microphones
• Supports single-ended Analog microphones and fully differential microphone
• Audio Interfaces: I2S TX and I2S RX*2, SPDIF TX and RX, sampling rate up to192KHz

Power Management
• SupportsLi-Ion battery and 5V power supply
• Integrated DC-DC buck converters, switchable to LDO mode
• Linear regulators output VCC, SVCC, RTCVDD
• Standby Leakage Current (Include RTC module):<50uA(Whole System)
• Low Power Consumption:
• Typical Sniff Current:600uA@Vbat=3.8V
• A2DP: 15.5mA@Vbat=3.8V
• HFP: 16.5mA@Vbat=3.8V

PhysicalInterfaces
• SupportsSD/MMC/eMMC card interface
• Supports SDIO interface
• USB 2.0 device and host controllers
• Serial Interface: SPI*2, UART*2, I2C
• Supports Remote Control with internal IRC
• Supports LCM with 8bit CPU Interface, 4COM/5COM/6COM Segment LCD, 7pin LED
• 9 PWM drivers independent of MCU

Package
• QFN-68(8mm*8mm, Pitch 0.4mm)

Application
• BluetoothSmart Voice assistant
• Portable stereo speakers and speakerphones
• Bluetooth car audio unit
• Stereo headsets and headphones
• Other Bluetooth audio applications