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Internal Clock on TLC0820A

Juan Olvera
Prodigy 70 points

Other Parts Discussed in Thread: TLC0820A

Hello,

 

I would like to know what kind of internal clock the TLC0820A ADC operates on. Thank you.

  • 0
    TI__Guru**** 182881 points

    Hi Juan,

    Thanks for your question on the TLC0820!  By 'kind of clock' are you looking for for the internal clock oscillator speed?  If so, the clock is nominal 800K and max 1.25MHz.  The internal conversion clock is not accessible outside of the TLC0820, so essentially all you need to do is 'write' to the part to initiate a conversion and then read the results using the INT pin as an interrupt to your processor.  If your running with the MODE pin pulled low, you still write to the device to initiate the conversion, wait the MAX 2.5us conversion time and then pulse the READ strobe.

  • 0 in reply to Tom Hendrick
    Prodigy 70 points

    Hi Tom,

    Thanks for the info. I wasn't sure if it was using an RC Oscillator as a clock, I was reading that there are other types.

    I appreciate your answer.

     

    Juan