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ADAU1781:  SigmaDSP低噪声立体声音频编解码器,适合便携式应用

产品详情

产品状态:推荐用于新设计

ADAU1781是一款低功耗、24位立体声音频编解码器。低噪声DAC和ADC支持8 kHz至96 kHz的采样速率。ADAU1781的低电流消耗和省电模式使其成为电池供电音频应用的理想之选。        

可编程SigmaDSP®内核提供增强的录音和回放处理功能,可提高总体音频质量。

录音路径包括两个数字立体声麦克风输入和一个模拟立体声输入路径。模拟输入可配置为伪差分或单端立体声源。专用模拟传呼输入信号可混入任何输出路径。ADAU1781内置立体声线路输出和扬声器驱动器,使该器件能够支持动态扬声器。

串行控制总线支持I2C® 或SPI协议,串行音频总线可编程为I2S、左对齐、右对齐或TDM模式。通过可编程PLL可灵活产生所有标准时钟频率以及从11 MHz到20 MHz的主时钟频率。

应用

  • 数码相机
  • 数码摄像机

特点和优势

  • 可编程SigmaDSP内核,用于音频处理
  • 24位立体声音频ADC和DAC
  • 400 mW扬声器放大器(8 Ω负载)
  • 可选立体声数字麦克风输入脉冲密度调制(PDM)
  • PLL支持一定输入时钟频率范围
  • 立体声伪差分麦克风输入
  • 立体声线路输出
  • 欲了解更多特性,请参考数据手册。

功能框图 ADAU1781

文档

快讯名称 内容类型 文件类型
ADAU1781:采用SigmaDSP处理内核的低噪声立体声编解码器 (Rev B, 01/2011) (pdf, 937 kB) 产品数据手册 PDF
ADAU1781: Low Noise Stereo Codec with SigmaDSP Processing Core (Rev B, 01/2011) (pdf, 937 kB) 产品数据手册 PDF
AN-1006: Using the EVAL-ADUSB2EBZ  (pdf, 349 kB) 应用笔记 PDF
AN-951: 使用SigmaDSP内置 GPIO引脚进行硬件控制  (pdf, 439 kB) 应用笔记 PDF
AN-951: Using Hardware Controls with SigmaDSP GPIO Pins  (pdf, 439 kB) 应用笔记 PDF
Sigma Studio Overview
Familiar audio processing blocks can be wired together as in a schematic, and the compiler generates DSP-ready code and a control surface for setting and tuning parameters.
Videos HTML
VisualDSP++ 5.0 Linker and Utilities Manual (Revision 3.5, January 2011)  (pdf, 2290 kB) | Request a CD 软件使用手册 PDF
UG-177: Evaluating the ADAU1781 SigmaDSP using the EVAL-ADAU1781Z  (pdf, 1220 kB) 用户指导 PDF
Which SigmaDSP is right for my application? 常见问题解答 HTML
Which SigmaDSP parts are qualified for automotive applications? 常见问题解答 HTML
What evaluation boards are available for the SigmaDSP processors? 常见问题解答 HTML
What advanced algorithms are available for SigmaDSP? 常见问题解答 HTML
What is needed to boot a SigmaDSP processor? 常见问题解答 HTML
What is the processing power and RAM sizes of the different SigmaDSPs? 常见问题解答 HTML
How can I program and tune my target application using SigmaStudio? 常见问题解答 HTML
When should I use double precision and when should I use single precision filters? 常见问题解答 HTML
How do I protect my SigmaDSP design against power supply overvoltage and ESD? 常见问题解答 HTML
How can I get a copy of SigmaStudio? 常见问题解答 HTML
I already have a copy of SigmaStudio. How can I get the latest version? 常见问题解答 HTML
Where can I find a description of the changes made in the latest version of SigmaStudio? 常见问题解答 HTML
What are the PC requirements for SigmaStudio? 常见问题解答 HTML
What documentation is available for SigmaStudio? 常见问题解答 HTML
Can I use SigmaStudio without hardware connected? 常见问题解答 HTML
After I link-compile-download my project, the bar at the bottom of SigmaStudio turns green. Does this mean my program downloaded to the DSP successfully? 常见问题解答 HTML
How can I check that I have proper communication between SigmaStudio and the SigmaDSP hardware? 常见问题解答 HTML
How can I see exactly what SigmaStudio is writing to the target hardware? 常见问题解答 HTML
How do I change the sampling rate of my design in SigmaStudio? 常见问题解答 HTML
Where can I see how much of the SigmaDSP resources my project consumes? 常见问题解答 HTML
My signal flow is running out of instructions. What can I do to save resources? 常见问题解答 HTML
I can't use the maximum delay memory in my project. What's happening? 常见问题解答 HTML
When the signal input to my compressor is above 6 dB, the compression stops and my signal starts increasing. What's happening? 常见问题解答 HTML
How can I eliminate pops when changing the delay parameter at run-time? 常见问题解答 HTML
My application requires that I use multiple blocks that generate many addresses that I then have to map to my microcontroller code. Can I fix specific memory addresses for specific blocks to avoid all this mapping overhead? 常见问题解答 HTML
How can I tune my own hardware design using SigmaStudio? 常见问题解答 HTML
Where can I get further support for the SigmaDSP? 常见问题解答 HTML
术语表 专业词汇表 HTML

设计工具,模型,驱动及软件

快讯名称 内容类型 文件类型
ADAU1781 Sound CODEC Linux Driver 设备驱动 HTML
Firmware Loader for SigmaDSPs 设备驱动 HTML

评估套件,原理图符号和PCB封装

评估板和开发套件查看评估板和套件页面以了解文档和采购信息

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Sample样片申请及购买

价格,封装及供货状态

ADAU1781 型号选项
帮助

这里所列出的美国报价单仅供预算参考,指美元报价(规定订量的每片美元,美国离岸价),如有修改不再另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。对于特殊批量报价,请与您当地的ADI公司办事处或代理商联络。对于评估板和套件的报价是指一个单位价格。

ADUSB2EBZ评估板
产品型号 描述 报价 RoHS 查看PCN/PDN 查看库存/
购买/样片
EVAL-ADUSB2EBZ 产品状态: 量产 USB Interface $ 80.00 -
ADAU1781 Evaluation Board
产品型号 描述 报价 RoHS 查看PCN/PDN 查看库存/
购买/样片
EVAL-ADAU1781Z 产品状态: 量产 Evaluation Board $ 249.00 -

所示报价为单片价格。所列的美国报价单仅供预算参考,指美元报价(每片美国离岸价),如有修改,恕不另行通知。由于地区关税、商业税、汇率及手续费原因,国际报价可能不同。

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