Hello,
I now have a project with the following specifications:
I need to send 2 input-signals parallel over USRP, then find out the
zero-crossings (time) of each signal so I can calculate the phase
difference
of them.
The 1st signal S1 is up to 1MHz
The 2st signal S2 is about 50 Hz
- Sending 2 input signals parallel to USRP:
My idea is:- Sending these 2 Signals in 2 separate daughter-boards LFRX
- (Or) Put them two on only one LFRX through the 2 SMA connectors.
- How about using digital I/O pins ?
- What is the maximum voltage can I feed the daughter-board through
SMA ? - Will the inputs be synchronously sent and sampled ?
Zero-crossings detection:
- How can I find out the zero-crossing time, esp. of the signal S2 ?
Thanks in advance for your reply.
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