Digital phase locked loop frequency estimation

A Digital Phase Locked Loop (DPLL), including a Time-to-Digital Converter (TDC) configured generate quantized phase values of a Voltage Controlled Oscillator (VCO) signal; and a frequency estimation circuit configured to receive the quantized phase values, determine wraparound phase of the quantized...

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Bibliographische Detailangaben
Hauptverfasser: Shimon, Ran, Dinur, Nati, Amel, Roy, Banin, Elan, Ravi, Ashoke
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A Digital Phase Locked Loop (DPLL), including a Time-to-Digital Converter (TDC) configured generate quantized phase values of a Voltage Controlled Oscillator (VCO) signal; and a frequency estimation circuit configured to receive the quantized phase values, determine wraparound phase of the quantized phase values, and least-squares estimate a frequency based on the quantized phase values and the wraparound phase.