• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 31 subscribers
  • Views 215 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

PGA970: Demodulator output and LVDT position output

Ran Litver
Prodigy 30 points
Part Number: PGA970

Can you please alaborate about the function of the Demodulator. Does it produces DC signal related to the channel input?

At the EVM, whre to I see each channel output amplitude?

At the EVM, where can I see the output function of (S1-S2)/S1+S2) ?

Thanks

  • +1
    TI__Guru** 113765 points

    Hi Ran Litver,

    Ran Litver said:
    Can you please alaborate about the function of the Demodulator. Does it produces DC signal related to the channel input?

    The LVDT is excited with an AC signal and the corresponding secondary outputs will connect to the PGA970.  The output produces both an DC magnitude and phase related relative to the primary.

    Ran Litver said:
    At the EVM, whre to I see each channel output amplitude?

    Can you not use the ADC Capture tab and under the Register dropdown select Both ADC?

    Ran Litver said:
    At the EVM, where can I see the output function of (S1-S2)/S1+S2) ?

    When using the GUI it appears that the computation would need to be done manually.  I will investigate further.

    Best regards,

    Bob B