PHASE LOCKED LOOP WITH DIGITAL COMPENSATION FOR ANALOG INTEGRATION

PHASE LOCKED LOOP WITH DIGITAL COMPENSATION FOR ANALOG INTEGRATION

A phase locked loop (PLL) device includes a digital differentiator configured to differentiate a digital loop signal to at least partially compensate for the integration of an analog current signal by an analog integrator. A digital to analog converter (DAC) includes a current source output stage th...

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Bibliographische Detailangaben
Hauptverfasser: BALLANTYNE, Gary J, ASURI, Bhushan S, DUNWORTH, Jeremy D, SAHOTA, Gurkanwal S, GENG, Jifeng
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Zusammenfassung:A phase locked loop (PLL) device includes a digital differentiator configured to differentiate a digital loop signal to at least partially compensate for the integration of an analog current signal by an analog integrator. A digital to analog converter (DAC) includes a current source output stage that generates the analog current signal based on an digital input signal. The analog integrator integrates the analog current signal to generate a voltage control signal for controlling a voltage controlled oscillator (VCO).