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variable HF oscillator
I need to vary the frequency of operation of a transceiver IC from
7MHz to 9MHz. The oscillator needs to feed into the crystal oscillator input and crystal oscillator output pins of the IC (the current design does not have a variable oscillator and is just using a crystal). Ideally I would like to control the frequency of the oscillator using the PWM of a micro controller (unfortunately the current micro does not have a DAC). Any ideas on the best way to do this? |
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