ATS2835K
ATS2835K是一款高度集成的单芯片蓝牙音频解决方案。蓝牙定位 便携式立体声扬声器、耳机和免提电话以及本地 MMC/SD 卡音频播放市场， ATS2835K以高性能、低成本、低功耗满足市场需求消耗。
ATS2835K采用CPU+DSP双核架构。内嵌大容量RAM，满足不同需求 蓝牙应用，支持蓝牙后台工作，同时播放高品质音乐 传统的插卡和U盘。 ATS2835K支持解码蓝牙A2DP音频和 同时加载音效，支持蓝牙免提通话，双MIC AEC和噪音减少。
ATS2835K集成蓝牙控制器支持V5.3并兼容V5.2/5.0/4.2/2.1蓝牙 规范，并支持双模式（BR/EDR + 低能耗控制器）。 BR/EDR 和 LE 中的链接可以同时活跃。
乐侠可根据客户需求基于炬芯ATS2835K提供IC，模组和完整解决方案等多种支持。
ATS2835K采用CPU+DSP双核架构。内嵌大容量RAM，满足不同需求 蓝牙应用，支持蓝牙后台工作，同时播放高品质音乐 传统的插卡和U盘。 ATS2835K支持解码蓝牙A2DP音频和 同时加载音效，支持蓝牙免提通话，双MIC AEC和噪音减少。
ATS2835K集成蓝牙控制器支持V5.3并兼容V5.2/5.0/4.2/2.1蓝牙 规范，并支持双模式（BR/EDR + 低能耗控制器）。 BR/EDR 和 LE 中的链接可以同时活跃。
乐侠可根据客户需求基于炬芯ATS2835K提供IC，模组和完整解决方案等多种支持。
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详 细 参 数 |
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System |
264MHz RISC-32 CPU processor Core
342MHz CEVA DSP core
Internal 498.5KB RAM for data and program
Internal 32KB CPU ICache for external SPI NorFlash
Internal 32KB Cache for SPI pSRAM
Internal 16M bits 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 SHA256 With RSA Encryption, the public key is 2048bit
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Bluetooth |
Supports Dual-mode Bluetooth V5.3 with LE audio
Max transmitting output power: 11dBm
Bluetooth receiving sensitivity:
-94dBm@GFSK, -94dBm@π/4 DQPSK,
-87dBm@8DPSK modulation
Compatible with Bluetooth V5.2/V5.0/V4.2/V4.2 LE/V4.0/V3.0/V2.1 + EDR systems
Compatible with AVRCP Profile V1.6.2
Compatible with A2DP Profile V1.3.2
Compatible with HFP Profile V1.8
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
Integrated Class1 PA
Supports connecting external PA
Supports Power / Enhanced Power Control
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Audio |
Built-in stereo 24 bit input sigma-delta DAC
DAC supports sample rate 8k/12k/11.025k/ 16k/22.05k/24k/32k/44.1/48kHz
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/48kHz
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, sampling rate up to 192KHz
Audio Interfaces: SPDIF TX and RX, sampling rate up to 96KHz
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Power Management |
Supports Li-Ion battery and 5V power supply
Integrated DC-DC buck converters
Linear regulators output VCC, SVCC, RTCVDD
Standby Leakage Current (Include RTC module):<70uA(Whole System)
Low Power Consumption:
Typical Sniff Current: 450uA@Vbat=3.8V
A2DP: 13.5mA@Vbat=3.8V, SBC;
HFP: 16.5mA@Vbat=3.8V, mSBC;
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Physical Interfaces |
Supports SD/MMC/eMMC card interface
Supports SDIO interface
USB 2.0(FS) device and host controllers
Serial Interface: SPI, UART*2, TWI
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 |
QFN-68 (8mm*8mm, Pitch 0.4mm)
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Applications |
Portable stereo speakers and speakerphones
Bluetooth car audio unit
Stereo headsets and headphones
Other Bluetooth audio applications
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