Hi folks, I'm looking for some suggestions for a simple circuit to compare the resonant frequency of a crystal (10 - 20 Mhz) with that of a LC circuit.
The LC is tuned by laser trimming a capacitor bank on an ASIC, and the whole process is currently based on a rather complex DDS system.
I'm thinking of using some variation of a Wheatstone bridge to compare reactance, any other ideas? Thanks - Claude
The LC is tuned by laser trimming a capacitor bank on an ASIC, and the whole process is currently based on a rather complex DDS system.
I'm thinking of using some variation of a Wheatstone bridge to compare reactance, any other ideas? Thanks - Claude