Bc. Sarkar et al., EFFECT OF USING 2 PARALLEL LOW-PASS FILTERS IN A PHASE-LOCKED LOOP, Indian Journal of Pure & Applied Physics, 35(2), 1997, pp. 109-114
The effect of using more than one loop filters in a phase looked loop
(PLL) system is reported. The modified system becomes conditionally st
able, has larger signal acquisition range, better transient response a
nd reduced deleterious effect caused by the additional loop time delay
. Experimental studies support the analytical findings.