Patent ID: 6163287
Filing Date: 2000-12-19
Classification: H03H,H03M

Abstract:
A hybrid loop filter comprising:an integrator having an input and an output, said output forming an output of said hybrid loop filter;a plurality of transconductance amplifiers, each of said plurality of transconductance amplifiers having an input and an output, each output of said plurality of transconductance amplifiers coupled to said input of said integrator;a switched capacitor low pass chain having an input and a plurality of branches, each of said plurality of branches coupled to said input of a separate one of said plurality of transconductance amplifiers; anda feedthrough branch having an input and an output, said input coupled to said input of said switched capacitor low pass chain to from an input of said hybrid loop filter, and said output coupled to said input of a separate one of said plurality of transconductance amplifiers.