I am using the setup shown in the snapshot below. The Phase adjust is not responding at all. It appears as if the phase adjust was disabled, even though it is enabled on the GUI. Could you give me a guidance on this issue please? icollins responded in the past to similar question as '' ...if phase adjust is to be used in an integer channel, it is possible to turn on a test mode to allow this..'', does this apply for this issue? If that is the case, what is the test mode and how can I apply it?
Phase adjust is not working because the SD modulator is automatically turned off when Nfrac=0. On the top tab select "Other functions" and set SD Testmodes="0110 - SD EN with FRAC=0". Now phase adjust should work when Nfrac=0.
I am using 4355-2, and my questions are :
1. Does the MUXOUT need to be set to test modes, as it was the case with 4351? if so, does the setting with 4351 apply to 4355-2?
2. In 4355-2, Sigma-Delta is enabled with the change to which register? In the case of 4351, register 5 was changed to enable the SD.