Skip to main content
F
fxdif
Visitor II
March 23, 2004
Question

Maximum sample rate question

  • March 23, 2004
  • 2 replies
  • 786 views
Posted on March 23, 2004 at 11:26

Maximum sample rate question

    This topic has been closed for replies.

    2 replies

    F
    fxdifAuthor
    Visitor II
    March 22, 2004
    Posted on March 22, 2004 at 10:00

    I'm using an ST7FLITE09 and was wondering what is the maximum frequency I can sample.

    From the datasheet I see

    tCONV = tSAMPLE + tHOLD

    where tHOLD is 8 cycles. But how many cycles is tSAMPLE and how is the number of cycles related to processor clock speed? Is it 1/Fosc.

    I am clocking at 8Mhz so what is the maximum frequency I can sample (assuming 2 x Fsampling rate = Fsample)

    TIA
    A
    anshul
    Visitor II
    March 23, 2004
    Posted on March 23, 2004 at 11:26

    tSAMPLE is 4 1/fADC cycles and tHOLD is 8 cycles 1/fADC. For these details you can refer page 103 of Lite0 datasheet rev.2.5 which you can download from the net.

    Terms & ConditionsAccessibility statement