SigmaDSP™音频处理器

SigmaDSP™音频处理器SigmaDSP™数字音频处理器使每个人都可以使用SigmaStudio™图形开发工具进行简单配置的完全可编程音频DSP。包括AD1953在内的第一代SigmaDSP产品集成了三个高性能音频DAC与功能强大的DSP内核。第二代全数字器件AD1940与AD1941具有更多的I/O通道,可提供更强的处理能力。

最新的SigmaDSP产品ADAU1701与ADAU1702结合了完整的模拟I/O、数字I/O以及独立执行(stand-alone)功能,可在单芯片上提供完整的音频处理系统。ADAU1401的功能与ADAU1701相似,但它专为汽车市场设计,可在更宽的温度范围内工作。

SigmaStudio是一种完全图形化的可编程工具,允许用户使用熟悉的音频处理模块(如双二阶滤波器、延迟以及动态处理器)产生信号流。这个设计工具可以直接与SigmaDSP硬件进行连接,SigmaStudio工具还可以用作设计参数的实时控制界面,可以轻松的实现系统调整。面向SigmaDSP的第三方算法,如Dolby® ProLogic®II、Audistry™、Waves MaxxBass®以及SRS® TruSurround XT™,已经无缝集成入SigmaStudio环境中。

Part# Results: 11 Instructions/Cycles Data RAM (k Words) Digital I/O Channels Analog I/O Channels GPIOs Features Product Description Price* (1000 pcs.)
AD1940 1,536 6 16/16 0/0 - - Multichannel 28-/56-bit audio processor with 4-wire SPI control interface $8.45
AD1941 1,536 6 16/16 0/0 - - Multichannel 28-/56-bit audio processor with 2-wire I2C control interface $8.45
ADAU1401A 1,024 2 8/8 - 12 Selfboot from EEPROM, Auxiliary ADCs 28-/56-bit automotive audio processor with 2 ADCs and 4 DACs $5.68
ADAU1442 3,584 8 24/24 0/0 12 8x2-ch ASRC, Selfboot from EEPROM, S/PDIF Rx, Aux A/Ds Digital audio processor with flexible audio routing matrix, 2 × 8-channel ASRC $9.96
ADAU1445 3,584 8 24/24 0/0 12 2x8-ch ASRC, Selfboot from EEPROM, S/PDIF Rx, Aux A/Ds Digital audio processor with flexible audio routing matrix, 8 × 2-channel ASRC $9.31
ADAU1446 3,584 8 24/24 0/0 12 Selfboot from EEPROM, Auxiliary ADCs Digital audio processor with flexible audio routing matrix $8.28
ADAU1461 1,024 4 8/8 2/2 4 Digital Microphone inputs, headphone amp, Frac PLL Stereo, low power, 96 kHz, 24-bit automotive SigmaDSP audio codec with integrated PLL $4.89
ADAU1701 1,024 2 8/8 2/4 12 Selfboot from EEPROM, Auxiliary ADCs 28-/56-bit audio processor with 2 ADCs and 4 DACs $4.52
ADAU1702 512 0.5 8/8 2/4 12 Selfboot from EEPROM, Auxiliary ADCs 28-/56-bit audio processor with 2 ADCs and 4 DACs $3.57
ADAU1761 1,024 4 8/8 2/2 4 Digital Microphone inputs, headphone amp, Frac PLL Stereo, low power, 96 kHz, 24-bit SigmaDSP audio codec with integrated PLL $3.91
ADAU1781 512 0.5 8/8 2/2 5 Digital microphone inputs, mono speaker amp, Frac PLL SigmaDSP low-noise stereo audio codec for portable applications $3.20
Part# Results: 3 Instructions/Cycles # ADC Input Channels # DAC Outputs DAC DNR (dB) DAC THD+N @ 1 kHz (-3dB) ADC THD+N (dB) Digital I/O Channels Digital Output PWM Chs Product Description Price* (1000 pcs.)
ADAV4322 2,560 4 11 95 85 -90 8/2 - Audio Processor for Advanced TV w/ Sound IF Demod & Stereo Decoder **
ADAV4601 - 2 6 94 86 -90 - 8 Audio Processor for Advanced TV $6.21
ADAV4622 2,560 4 8 94 86 -90 - 8 Audio Processor for Advanced TV with Sound IF Demodulator and Stereo Decoder $9.58
SigmaDSP™数字音频处理器应用技术支持与电子电路设计开发资源下载