Forum Post: RE: ADS1218 - ssi clock

Hi Shubham,

All the timing specifications are given in the table on page 9 of the ADS1218 datasheet.  If you are using 4MHz clock for fosc, tosc is the clock period which is just the inverse of fosc.  The minimum SCLK period is 4 tosc periods, or 1/4 fosc is the fastest SCLK that can be used.  In your case, 1/4 of 4MHz is 1MHz which is the fastest allowable SCLK.

Best regards,

Bob B