• ADAU7002 TDM data format for microchip ATSAME53J19A Board

    Dear All,

    We have ATSAME53J19A microchip board with custom schematic. In this board we have 2 ADAU7002 chip and each chip having 2 microphones with PDM output so total we have 4 ,microphones. We have added the 4 microphones in the i2s driver configuration…

  • ADAU7002 with USB-based DSD Native

    Can the ADAU be used directly with a USB-packeted native PDM (DSD) stereo signal? USB-based PDM is a 32-bit input signal

    We also need a solution that converts DSD-over-PCM ("DoP") to pure PCM. This is a 24-bit input signal.

    Based on my reading…

  • Question about ADAU7002 data sheet Figure 3

    Hi,
    There are three questions regarding Figure 3 in the ADAU7002 data sheet.
    ① There is a peak at 1kHz, 2kHz, 3kHz. What is the principle of this?
    ② As for ①, does the peak increase as the input signal increases?
    ③ What kind of signal is being input…
  • Using multiple ADAU7002 in single DAI for Embedded Linux

    Hi all,

    I work on a RnD project that is using 2 adau7002 devices with 4 PDM mics. 

    My first prototype works electronically in perfect condition. I confirmed this with bare metal boards, scope and logic analyzer observations.

    However, I lost outputs of…

  • is the group delay steady for ADAU7002

    my application: a pair of PDM microphone to ADAU7002, which convert PDM to I2S, then to host processor. I saw the group delay is 3.31 LRCLK cycles. Is it steady over time? 

  • ADAU7002 interfacing with SAI on iMX6UL

    Hello,

    I am trying to setup the device tree of my Variscite iMX6UL Dart SOM to interface with multiple ADAU7002 in TDM format using simple sound card. I have made edits in the dtsi file to try and enable SAI3 with no luck. Here are my edits to the simple…

  • ADAU7002 PDM output clock issue

    HI, 

    We are using ADAU7002 to covert from PDM to TDM input. The condition is as below.

    Our configuration is as below, and the TDM LRCK/BCK from host is 48k/12.288MHz TDM mode.

    But we found the PDM_CLK output from ADAU7002 is 1.5MHz only, it should be 3…

  • RE: 关于芯片ADAU7002的使用问题

    只要是标准的PDM MIC,我们的7002都是可以接入并转换的,请确认你的PDM MIC是否工作正常。

  • RE: ADAU7002 overshoot?

    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,
  • ADAU7002 Current

    Hi

     

    I have a question ADAU7002.

    Please tell me the operating current of the ADAU7002.

    Currently IOVDD = 2.2 V is input to the power supply voltage and I thought that the operating current was 0.85 mA from the data sheet.
    Is it that SDATA 4.5 mA and PDM_CLK…