SDO timing spec is not clear. Looking at Figure 5. SPI Read Timing in datasheet Rev.A, set up/hold time associated with SCLK rising or falling edge is not clear. Actually the diagram does not pointed any timing line on SDO. Please clarify timing spec of SDO.
The SDO is clocked out after the rising edge of the edge clock. We have a minor error on Figure 5 on the data sheet wherein t22 should have been extended down to the SDO lines. t22 is the minimum time from the "rising edge of SCLK to SDO valid".
It looks that the extencded S22 line in your diagram is not clear enough. Please look at the t22 in the attached diagram that shows my understanding. Is this correct?
One more question. Is hold time of SDO not defined for AD5362? t24 in the attached diagram shows what it should be in my understanding.
Your understanding of t22 is correct.
We haven't defined the "hold time" for the SDO but it should hold its value until it sees a rising edge again on SCLK.
Understood.It's been clear now.
Thanks a lot.