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gillyne

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Posts posted by gillyne

  1. Thanks for your help.  ;)

    Somehow, I face another problem dealing with my TC9400 :-\. It is a frequency to voltage IC from MICROCHIP. I had inputed the frequency supply at pin 11, and the result get at pin12 is very low.
    The frequency input is 4k, 10k, 20k, 40k; I get more or less around 1.23v.
    Is the diagram wrong?

    Thanks.

    post-23680-14279143117392_thumb.jpg

  2. Hi.

    I am currently working on FTV projects. I am using TC9400 to convert frequency to voltage and TL071 to get rid of ripple and ADC output.

    I am using single supply for both case.
    May I know how should I modify the TL071 to be 10v-GND?
    Is there any additional circuit? ???

    Attach on left is the circuits that I am working on, on right is the inverting single supply opamp taken from audioguru.

    Thanks in advance. :)

    post-23680-14279143110736_thumb.jpg

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