Re: VCTCXO model and the issue with crystal aging - 2LO off the DAC range


igor-m <mikki@...>
 

Example: With R11 removed and the trimmpot soldered in (will be accessible from the top of the DDS board), for example 22k large, you may get following voltage ranges (the x-axis is the DAC output voltage from 00h to FFh, and the y-axis is the voltage at the CV pin of the TCXO):

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