Digital cancelation of clock jitter induced noise

A system for processing signals from a gyroscope, comprising:

• at least one drive channel configured to receive an output of a drive axis of the gyroscope, the at least one drive channel including:
• a drive channel analog-to-digital converter (ADC) that receives a drive signal from the drive channel and outputs a digitized drive signal;
• a drive channel in-phase demodulator that receives the digitized drive signal and generates an in-phase demodulated drive signal;
• at least one drive channel filter that receives the in-phase demodulated drive signal and outputs a filtered in-phase demodulated drive signal;
• and
• a phase-locked loop (PLL);
• a sense channel configured to receive an output of a sensing axis of the gyroscope, the sense channel including:
• a sense channel ADC that receives an analog rate signal from the sense channel and outputs a digitized rate signal;
• and
• a digital signal processor including:
• a sense channel in-phase demodulator that receives the digitized rate signal and generates an in-phase demodulated rate signal;
• a sense channel quadrature-phase demodulator that receives the digitized rate signal and generates a quadrature-phase demodulated rate signal;
• a first sense channel filter that receives the in-phase demodulated rate signal and outputs a filtered in-phase demodulated rate signal;
• and
• a second sense channel filter that receives the quadrature-phase demodulated rate signal and outputs a filtered quadrature-phase demodulated rate signal;
• and
• a digital subtraction circuit that subtracts the filtered in-phase demodulated drive signal from the filtered in-phase demodulated rate signal to generate a sense axis output signal.