AN10041 Designing with the SiT39xx Family of DCXOs (Digitally Controlled Oscillators)

The paper is intended to help developers understand and better use available options for controlled oscillators – the commonalities and differences between digitally controlled oscillators (DCXOs) and traditional voltage-controlled crystal oscillators (VCXOs) are described. Characteristics of SiTime’s SiT39xx DCXOs, which enable high resolution frequency adjustment via a 1-wire serial interface, are explained and the features, specifications and control methodology for the SiT3907, a representative DCXO device are described.

 

 
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