Coded data generation or conversion – Analog to or from digital conversion – Differential encoder and/or decoder
Patent
1999-04-05
2000-12-19
Williams, Howard L.
Coded data generation or conversion
Analog to or from digital conversion
Differential encoder and/or decoder
327558, 333173, H03M 300
Patent
active
061632872
ABSTRACT:
A hybrid loop filter includes an integrator having an input and an output wherein the output forms an output of the hybrid loop filter, a plurality of transconductance amplifiers having an input and an output wherein each output of the plurality of transconductance amplifiers is coupled to the input of the integrator, a switched capacitor low pass chain having an input and a plurality of branches wherein each of the plurality of branches is coupled to the input of a separate one of said plurality of transconductance amplifiers, and a feedthrough branch having an input and an output wherein the input is coupled to the input of the switched capacitor low pass chain to form an input of said hybrid loop filter, and the output is coupled to the input of a separate one of the plurality of transconductance amplifiers.
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Sonic Innovations, Inc.
Williams Howard L.
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