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。
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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