Ignacio wrote:
I'm not very sure that the DAC is working, I suppose that the unit doesn't measure the DAC output, it reports the DAC commands. My voltage figures is what LH reports (so the NTGS50AA reports, probably what it is trying to do), but the frequency control pin of the oscillator is stuck at 5.02 V regardless of the supposed (intended) DAC output, it does not move at all.
I'm not sure I understand what you've measured. I take it you have measured the EFC pin on the OCXO, and it reads 5.02v? Have you also determined what the voltage is on the DAC output pin? (Are they connected directly together, or is there a resistor or other circuitry between them?) If they are both at 5.02v, you need to disconnect them and see which one is pulling the node to that voltage (it could be an internal failure in the OCXO).
Best regards, Charles _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
