• AD1940: RMS and readout via SPI

    Im a student at the Beuth university in Berlin and im working on my final paper for the Bachelor right now.

    I have a problem with the AD1940 Sigma DSP, i want to generate an RMS of an audio stream (I2S) with a time interval of 100ms (could be changed…

  • TDM between AD1401 and AD1940 eval boards


         I've been able to send I2S stereo audio from a AD1401 eval board to a AD1940d board by connecting them as described in


         Now I'd like to try sending  TDM audio across the same interface, but cannot make…

  • I2S between AD1401 and AD1940 eval boards


    To experiment with I2S audio transfer, I wish to run I2S from a EVAL-ADAU1401AEBZ (master) to a EVAL-AD1940AZ (slave)

    • Does this chart show the correct I2S wiring?

  • Maximum audio frequency with AD1940 and Sigma Studio?


    I am going to make some audio signal processing on ultrasonic audio signals, mainly in the frequency range from 20 kHz to 40 kHz.

    I would like to do some preliminary filtering expirements, and i was planing to use the AD1940 SigmaDSP Using the…

  • RE: microphone choice for EVAL AD1940-MINIBZ ADC input

    A stand-alone plug-in PC microphone needs a bias voltage to be provided from the preamp circuit; this bias is not available on the AD1940 mini board. In order to use a mic like this, a bias voltage should be provided through a 2k resistor on the microphone…

  • TDM between AD1401 and AD1940 eval boards revisited


         Sorry I had marked my previous post http://ez.analog.com/message/117014#117014

    as assumed answered by mistake, but I would appreciate help with this.

         I've been able to send I2S stereo audio from a AD1401 eval board to a AD1940d board by connecting…

  • Ad1940 can use c language to compile in sigmastudio


          I am running sigmastudio between AD1940 evaluation board.I want to ask about that, sigmastudio you can compile our own written by c language, as well as how to compile, can you send me a copy of the instructions, thank you!

  • Frequency above 20 kHz with Sigma Studio and AD1940?

    Hello, i want to expirement with sound in the ultrasonic frequency range, deom about 15 kHz to 40 kHz.

    Can Sigma Studio operate in this frequency range, and can i do filtering, ect in this frequency range.
    I want to use the AD1940 on the evaluation board…

  • Using hardware data capture (trap) registers with the DSP Readback cell (AD1940, ADAU1701)

    When using a 2nd generation SigmaDSP with hardware trap registers like the AD1940 or ADAU1701, a specific write-write-read sequence must be followed in order to read back data from the signal flow (using a DSP Readback cell in the project schematic…

  • AD1940 、ADAU1442 量产等问题、ADSP-21396 音频算法支持

    1AD1940、ADAU1442 是否有量产工具, ADI 是否支持提供?

    2、ADSP-21396 是否有用在音响设备应用上的音频的软件例程提供?