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ADS1291: ads1291 maximum SPI clock

HECTOR
Intellectual 536 points

Part Number: ADS1291

Hello Everyone 

What is the maximum SPI Clock of ads1291 when using internal clock  512Khz ? 

thank you 

Regards 

  • 0
    TI__Mastermind 19815 points

    HI,

    Do you have a ADS1291 Evaluation kit/board(EVM)?

    According to data sheet,

    If f_clk is 512 kHz, i.e. 1953.125 ns period, you will need to set CLK_DIV bit of LOFF_STAT register = 0.

    and SCLK can only be twice the speed of f_clk during register reads and writes,

    so, if f_clk is 512 kHz or 2.048MHz, f_sclk can not be higher than 1024 kHz or 4.096MHz, respectively - 

    Thanks

  • +1 in reply to ChienChun Yang
    TI__Mastermind 19815 points

    Hi,

    This ticket/thread has been pending for more than 1 week.

    For house cleaning, I am closing this ticket/thread. If you may have other question, feel free to open another ticket/thread.

    Thanks