• AD1835A: DC offset voltage

    I am using the Analog Devices EZ-kit lite 21369 development board which has an
    AD1835A codec. The problem is that there seems to be an unwanted DC offset on
    the output values from the ADC's in the codec. I therefore wanted to use the …
  • ADSP21369 / AD1835A L/R Audio Channel Help please?

    Hello,

    I'm new to the Analog DSPs and this forum.

    I' have had a read of the forum however this still will come across as a newbie question i'm sure...

    I'm trying to get a Platform running in which i can get single left sample and single…

  • RE: Replacement for AD1835AASZ-REEL

    Hello,

    Unfortunately, there are no drop-in replacements available for the AD1835A. I recommend that you evaluate the AD1938, AD1939, or ADAU1328 -- they all can perform the functions of the AD1835A and are recommended for new designs.

    Regards,

    Tyl…

  • RE: ADSP 21364 EZ-kit

    Hi Jeyanthi,

    Many Thanks for your reply. Just one query, on page 11 of CODEC'S DATA SHEET , under AD1835A CLOCKING SCHEME  it says, MCLK clock scalar needs to changed during internal reset of phase of AD1835A by programming the bits in the first 3072…

  • RE: "talkthru analog in-out" example program do not work

    Thank you for answer David,

    My revisions are:

    Board rev 1.0 - same as your

    BOM rev 1.2 - your is 1.1

    Silicon rev 0.0 - same as your

    Visual DSP++ v 5.0 Update 6 - same as your

    So we differ only in BOM revision.

    SW 3, 6 and 14 I have according to…

  • 关于ADSP21369采集信号出现问题

    Hi,ALL

        在调试 ADSP21369 Ezkit的Demo中的例程(Block-based Talkthrough)程序时,只是在main.c增加如下语句:

    开发板上ADC(LEFT)端接信号发生器(激励40Hz正弦波),得到如下图(图1)的结果:

    图2是当激励信号为400Hz正弦信号时采样。

                                                                                (图1)

                                                                            (图2)

    采集过程中在VisualDSP++(5.1版本)中的plot查看就有这种突然中断的点,而且我利用逻辑分析仪仪器查了AD1835A这种的ADC_DATA引脚也是同样的结果…

  • RE: EZKIT-21369

    Hi Kabita,

    As mentioned in the AD1835 data sheet at page 11  (http://www.analog.com/static/imported-files/data_sheets/AD1835A.pdf):

    "The AD1835A ADC engine has a programmable decimator, which allows the user to select the sample rate based on the MCLK…

  • RE: Pro audio device DSP IC advice

    Dear Miguel,

    thank you very much for your answer.

    Thanks for the advice on starting with SigmaStudioso so we can then choose the right DSP.

    We will need to use AD and DA converters yes.

    We`re a bit lost because of the large offer that is on this type…

  • RE: who can help me for 21369?

    Hi,

    Thanks for further details.

    I understand that you have two boards with your own design. One board (say B1) is equipped with the same codec i.e. AD1835A as in the EZ-Kit and is connected to the DSP with similar connections as in the EZ-Kit. Another…

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