A gain compensator compensates for the gain variation of a varactor-tuned voltage tuned oscillator (VCO) in a phase lock loop (PLL). The VCO includes a parallel LC circuit having multiple fixed capacitors that can be switched-in or switched-out of the LC circuit according to a capacitor control signal...http://www.google.fr/patents/US20090058536?utm_source=gb-gplus-shareBrevet US20090058536 - APPARATUS AND METHOD FOR PHASE LOCK LOOP GAIN CONTROL USING UNIT CURRENT SOURCES
APPARATUS AND METHOD FOR PHASE LOCK LOOP GAIN CONTROL USING UNIT CURRENT SOURCES
Numéro de demande: 12/259,770 Numéro de publication: US 2009/0058536 A1 Date de dépôt: 28 oct. 2008 Brevet délivré: US7948325 ( Date de délivrance 24 mai 2011)