High speed phase locked loop

Details High speed phase locked loop High speed phase locked loop

H - Electricity

03

L

328/0.3

H03L 7/00 (2006.01) H03L 7/113 (2006.01)

Patent

CA 1227836

ABSTRACT OF THE DISCLOSURE A loop filter having a substantially infinite bandwidth for use in a phase locked loop circuit for high frequency digital electronic signals, there being a reference signal generating means and frequency and phase comparison means for producing input signals for the loop filter which includes an operational amplifier with integrating feedback means for non-invertingly integrating such input signals, a voltage divider having one input from the output of the operational amplifier and an input from the input signals, whereby attenuating and summing the output of the operational amplifier and the input signals for providing an output signal of the loop filter.

521179

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