音频信号处理器

Analog Device,Inc.(简称ADI)拥有适合音频应用的各种音频专用DSP和通用DSP。其中SigmaDSP™ 允许用户对音频DSP使用SigmaStudio graphical tool 编程方法,而不必使用汇编语言或C语言。许多SigmaDSP处理器集成了高性能的音频ADC和DAC,可构建完整的音频片上系统(Soc)。ADI公司的SHARC® 处理器 是音频处理领域的佼佼者,而Blackfin® 处理器适合于移动多媒体应用。如有问题,请查看SigmaDSP常见问题解答。如需更进一步帮助,请Email至sigmadsp@analog.com.sigmadsp@analog.com.

产品选型表

SigmaDSP Audio Processors

Part#Core FrequencyInstructions/SampleProgram RAM (kWord)Data RAM (k Words)Digital I/O ChannelsAnalog I/O ChannelsGPIOsAutomotive RecommendedSelf BootUS Price 1000-4999
ADAU1451 294.912 MHz 6144 8 kWords 16 16/16 0/0 14 - - $9.96
ADAU1450 147.456 MHz 6144 8 kWords 8 16/16 0/0 14 - - $6.60
ADAU1452 295 MHz - - - - - - - I2C $11.99
ADAU1461 50 MHz 1024 1 kWords 4 8/8 2/2 4 Yes - $4.89
ADAU1442 172 MHz 3584 3.5 kWords 8 24/24 0/0 12 Yes I2C $9.96
ADAU1401A 50 MHz 1024 1 kWords 2 8/8 2/4 12 Yes I2C $5.68
ADAU1781 50 MHz 1024 0.5 kWords 0.5 8/8 2/2 5 - - $3.20
ADAU1446Reference Circuit Available 172 MHz 3584 3.5 kWords 8 24/24 0/0 12 Yes I2C $8.28
ADAU1761Reference Circuit Available 50 MHz 1024 1 kWords 4 8/8 2/2 4 - - $3.91
ADAU1445 172 MHz 3584 3.5 kWords 8 24/24 0/0 12 Yes I2C $9.31
ADAU1702 25 MHz 512 0.5 kWords 0.5 8/8 2/4 12 - I2C $3.57
ADAU1701Reference Circuit Available 50 MHz 1024 1 kWords 2 8/8 2/4 12 - I2C $4.52
AD1941 75 MHz 1536 1.5 kWords 6 16/16 0/0 - Yes - $8.45
AD1940 75 MHz 1536 1.5 kWords 6 16/16 0/0 - Yes - $8.45
AD1953 - 512 - - 4/6 0/3 - - - $7.14
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SigmaDSP Processors for TV

Part#Instructions/Cycles# ADC Input Channels# DAC OutputsDAC THD+N SNR (dB)DAC DNR (dB)ADC DNR (dB)ADC THD+N (dB)Digital I/O ChannelsDigital Output PWM Chs
ADAV4622 2560 4 8 86 - 94 95 90 - 8
ADAV4601 - 2 6 86 - 94 95 90 - 8
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