Title :
A 50 MHz phase- and frequency-locked loop
Author :
Cordell, Robert R. ; Forney, J.B. ; Dunn, Charles N. ; Garrett, William G.
Abstract :
A monolithic phase/frequency-locked loop has been developed for operation at up to 50 MHz. The loop combines wide capture range and narrow bandwidth, making it ideal for timing recovery in digital transmission systems. The 24-pin device features an electronically-tuned voltage-controlled LC oscillator and includes the input differentiation and full-wave rectification circuitry required for clock recovery from unipolar nonreturn-to-zero (NRZ) data.
Keywords :
Digital communication systems; Monolithic integrated circuits; Phase-locked loops; digital communication systems; monolithic integrated circuits; phase-locked loops; Band pass filters; Circuit noise; Clocks; Frequency locked loops; Narrowband; Optical signal processing; Phase locked loops; Pulse amplifiers; Timing; Voltage-controlled oscillators;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1979.1051309
