Title :
A frequency-variable ECL phase locked loop circuit
Author :
Zhao, W.W. ; Stager, J.M. ; Leach, D.P.
Author_Institution :
Biomation Corp., Cupertino, CA, USA
Abstract :
A newly designed frequency-variable emitter coupled logic (ECL) phase locked loop (PLL) circuit is presented. This circuit utilizes a minimum number of chips and provides a high degree of accuracy. This PLL circuit offers an ECL-level adjustable output signal frequency range of 50-100 MHz for an input signal frequency range of 5-100 MHz. It can be used in frequency multipliers, frequency synthesizers, and digital transmission systems
Keywords :
emitter-coupled logic; frequency multipliers; frequency synthesizers; phase-locked loops; 5 to 100 MHz; 50 to 100 MHz; accuracy; digital transmission systems; emitter coupled logic; frequency multipliers; frequency synthesizers; frequency-variable ECL phase locked loop; input signal frequency range; output signal frequency range; Counting circuits; Detectors; Frequency; Low pass filters; Phase detection; Phase locked loops; Switches; Switching circuits; Timing; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 1991., Proceedings of the 34th Midwest Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-0620-1
DOI :
10.1109/MWSCAS.1991.252177
