Actions ATS2835是一款高集成度蓝牙音频的单芯片解决方案，ATS2835面向便捷式蓝牙音箱，蓝牙耳机和本地播放音频市场，具有高性能、低功耗、低成本等特点。
· Actions ATS2835是一款高集成度蓝牙音频的单芯片解决方案，ATS2835面向便捷式蓝牙音箱，蓝牙耳机和本地播放音频市场，具有高性能、低功耗、低成本等特点。
· ATS2835采用CPU+DSP双核结构，内置大容量存储空间以满足不同的蓝牙应用，支持后台蓝牙及USB高品质音频播放。
· ATS2835支持蓝牙音频播放，同时加载音效，支持蓝牙免提通话，回声消除和降噪算法。
· ATS2835集成蓝牙控制器支持 V5.0蓝牙规范，支持双模式( 经典蓝牙模式和低功耗蓝牙模式)，支持经典和LE模式共存。
· ATS2835支持CSB协议、支持蓝牙Audio Broadcast，多音箱组播功能。
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System
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· 240MHz RISC-32 CPU processor Core
· 400MHz CEVA DSP core
· Internal 336KB RAM for data and program
· Internal 32KB CPU ICache for SPI NorFlash
· Internal 32KB Cache for SPI pSRAM
· Internal 32M bits SPI serial Flash for custom defined software
· Up to 16MB extensional pSRAM to support rich and flexible software feature
· Supports 24MHz OSC with on-chip PLL
· Operating voltage: I/O 3.1V, Core 1.2V
· Fully configurable PEQ
· Supports for echo cancellation， noise reduction and wind noise reduction
· Supports for packet loss concealment
· Supports for sound effect, such as MDRC, bass enhancement, virtual surround effects
· 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
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Bluetooth
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· Supports Bluetooth 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 transmission quality
· Integrated Class2 PA
· Supports Power / Enhanced Power Control
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Audio
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· Built-in stereo 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 mode and 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 differential analog 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 to 192KHz
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Power Management
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· Supports Li-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
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Physical Interfaces
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· Supports SD/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
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Package
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· QFN-68 (8mm*8mm, Pitch 0.4mm)
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Application
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· Portable stereo speakers and speakerphones
· Bluetooth car audio unit
· Stereo headsets and headphones
· Other Bluetooth audio applications
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