• AD1933

    1. PLL mode;
        master clock input from MCLKI = 12.288M (256×fs, here fs=48k);
       12.288M --> PLL --> the internal master clock = 24.576M.
       The internal clock for the DACs varies by mode: 512×fs(48kHz
       mode), 256×fs(96kHz mode), or 128×fs(192kHz…

  • RE: What is the full-scale voltage swing of the AD1933/1939 DACs?

    • The full differential voltage swing of the AD1933 DAC, driven with 0 dBFS is 5.6 Vp-p.
    • The single-ended swing is 2.8 V p-p.

    Keep in mind that the AD1934 is the single-ended version of the AD1933.

  • AD1933 & ADAU1372

    Hello Dave,
    Thank you. I have so many questions.
    1. AD1933 datasheet says: AD1933 provides 8 DACs using patented multibit sigmadelta (Σ-Δ) architecture. The DACs include on-board digital reconstruction filters with 70 dB stop-band attenuation, operating…

  • Please reply


    I am waiting for your reply of "AD1933,Dual-Line,TDM Mode".


  • AD1933 default standlone timing operation



    1,relation of MCLK BCLK  LRCLK

         after reset, BCLK s is 64 per frame, so BCLK = MCLK/4 = 3.072Mhz,LRCLK = BCLK / 64 = 48K 。

         Is it correct?

    2,default Word Length is 24bit,but LRCLK = BCLK…

  • question about 21489 connect ad1933

    Hello, I want to use AD1933 as slave, it connect with ADSP21489.  In ADSP21489, I use PCGA generate CLK(3.072M) and frame sync clock(48k) to AD1933. And I send a sinusoidal signal, but the AD1933 output pin have not ideal output, it is discontinuous, look…

  • AD1933 DAC generate undesired signal


    I drive a AD1933 in slave mode. The digital input of DAC is connected directly to FPGA. The AD1933 runs in TDM - Mode.

    The AD1933 becomes MCLK (Master Clock: 12,288MHz), BCLK (Bit Clock: 12,288MHz) and DACLRCLK (DAC LEFT RIGHT Clock: 48 kHz) from…

  • RE: AD1933 SPI Communications

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: AD1933 standalone mode

    Hello neimanAudio,

    No, you cannot use the TDM modes in Standalone mode. Have a look at the application note I wrote a few years ago detailing how to use a small low-cost micro-controller to boot up the codec in TDM mode. It includes the code in the App…

  • RE: Wiring - Multiple DSP boards

    Thanks, Graeme!

    First thing I would suggest is to substitute an ADAU1966 instead of the (2) AD1933. Otherwise, do you have some kind of key to define the letters that are in the circles?