Ryan Cheung
Junior Member
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Posts: 22
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If the measured VCO is biased from a regulator or something except a pin from the out-chip supply, it may encountered the problem you have mentioned. Based on my experience, there are 2 methods you can try: 1. tuning the IF gain of E5052 to a lower value; 2. using the 'supply voltage' of the E5052 to bias the VCO and adding a huge capacitor at the supply node if necessary.
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