• AD1937 with BF533

    Hi, I´m using AD1937 codec with BF533 on my own board. The problem is that DAC is not working. Digital signals are ok but the analog out is always 1.5V. Could anybody suggest me what test could I do?


  • AD1937 - does it support 8kHz


    I am using AD1937, I need to 8kHz sampling frequency application with AD1937 but first page in the manual  said that it supports 8kHz to 192kHz.

    But I can't find how to set register to use for 8kHz.

    How can I set AD1937 to support 8kHz?

  • AD1937 - asking 4channel TDM configuration

    Hello, AD Engineers.

    I have a question about 4 channel, 16bits, TDM single line configuration.

    I set 4 channel, 48kHz, 16bits, TDM single line, master mode with direct MCLK mode(48kHz*512) in AD1937.

    I checked frequency from BCLK(6.144MHz), FS…

  • RE: AD1937 evaluation board

    Hi Tom,

    Thank you for your interest in the AD1937 codec.

    The USBi control interface and Register Window Builder program are only able to control the registers in the AD1937; the routing of clock and data on the eval board are not affected by this control…

  • AD1937: Failure due to  I2C interface

    We have an audio device built around the ADAU1445-DSP and the AD1937 CODEC. 
    The ADAU1445-DSP is the clock master.
    Both of them are controlled on the same I2C bus by a processor, with a
    software, (‘bit bang’), I2C.
    7 bit address of the…
  • AD1937 - To use Single Daisy chain

    I am trying to use single daisy chain in AD1937.
    I want to check my idea for single daisy chain connection between DSP and AD1937s before making test module.
    Please review this idea.
  • AD1937 input into ADAU1442?

    Hi Guys,

    I have my board up and running but I'm having issues with getting an input into the 144x. If i generate a sine wave in the DSP i can see the wave form on my DAC outputs so i know the 1442 is talking to the 1937 but if i replace the sine wave…

  • How to remove noise in AD1937

    Hello, AD.

    My team designed evaluation board with AD1937 and several board are having some noise when we play sone at 48kHz 256fs TDM format and AD1937 is master mode (LRCLK and BCLK is coming from AD1937 and DATA is from DSP side).

    One strange thing…

  • AD1937 Linux drivers for ARM

    The customer want use ARM platform to implement the AD1937's control (under Linux ) and they want to get the Linux driver for ARM platform guide file. Does this solution is ok or any other advice?

  • Two AD1937 in TDM configuration



    I have an application where I need a codec with 8 ADC's and 8 DAC's. The digital signal is transmitted/received to/from the processor via two (one Tx, one Rx) TDM streams with 256 bits per frame. ADC and DAC resolution should be 16 bit with a sampling…