H - Electricity – 03 – L
Patent
H - Electricity
03
L
331/35
H03L 7/093 (2006.01) H03L 7/089 (2006.01) H03L 7/183 (2006.01)
Patent
CA 1328301
CONTINUOUSLY ADAPTIVE PHASE LOCKED LOOP SYNTHESIZER Abstract Of the Invention A continuously adaptive phase locked loop synthesizer is disclosed in which error correction pulses from a phase detector are separated into narrow pulse width and wide pulse width pulses. The wide pulse width pulses are coupled to the loop filter to enable a rapid charge of the loop filter. The narrow pulse width pulses are filtered by a narrow bandwidth filter to provide a VCO control Voltage on a control line connected to the output of the loop filter before being applied to the loop filter thus enabling a slow charge of the loop filter. The narrow bandwidth filter is decoupled from the control line but referenced to the control line voltage.
611015
Gillig Steven F.
Hietala Alexander W.
Gowling Lafleur Henderson Llp
Motorola Inc.
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