AnsweredAssumed Answered

AD9257 reset control

Question asked by Tak-8810 on Nov 21, 2014
Latest reply on Dec 1, 2014 by DougI


Please teach me about below questions.


1. Recovery time from Power-down is a 375us(typ), but recovery time from digital reset is more long.

    This reason is initialize the register at digital reset. Is this correct?

    If there is other reason, please let me know.

2. After power on reset, output is how long time is needed to stabilize?

3. If DCS is enabled, a wait time of 1.5us to 5us is required for relocked after frequency changed.

    So, digital reset does not need if clock does not stop when DCS is enabled. Is this correct?

4. Recovery time from digital reset is different by setting of the DCS? (Enable/Disable)