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FDC1004: Question about output rate

Chase Jeong
Mastermind 7820 points
Part Number: FDC1004


Tool/software:

Dear TI experts,

I found that FDC1004 can set measurement rate by contolling 0x0C register.

But I am little confused. Is "Measurement Rate" same as "Output Rate"?

(Page 1 says about "Output rate", Page 17 says about "Measurement Rate".)

Because I have a question that if there are any calculation or conversion in FDC1004, then "Output Rate" is little lower than "Measurement Rate" if calculation or conversion takes long time.

So finally I want to know that I can receive 400S/s data if I set RATE field of 0x0C as b11. (or little slower?)

Please check this issue. Thanks.

Best regards,

Chase

  • 0
    TI__Mastermind 40295 points

    Chase,

    Thank you for your feedback. You are right, the wording is not as consistent as it should be.

    The Output Rate and Measurement Rate are the same thing: it specifies the rate at which the FDC1004 polls through the input channels.

    You can set the Measurement Rate to 400S/s if you set the RATE field of the FDC Register (Address: 0x0C) to b11.

    regards,
    John