Title :
Response of an All Digital Phase-Locked Loop
Author :
Garodnick, Joseph ; Greco, John ; Schilling, Donald L.
Author_Institution :
Goldmark Communications, Stamford, Conn.
fDate :
6/1/1974 12:00:00 AM
Abstract :
An all digital phase-locked loop (DPLL) is designed, analyzed, and tested. Three specific configurations are considered, generating first, second, and third order DPLL´s; and it is found, using a computer simulation of a noise spike, and verified experimentally, that of these configurations the second-order system is optimum from the standpoint of threshold extension. This substantiates results obtained for analog PLL´s.
Keywords :
Digital phase locked loops; FM demodulation; Band pass filters; Computer simulation; Digital filters; Frequency modulation; Large scale integration; Phase locked loops; Physics; Sampling methods; Testing; Voltage-controlled oscillators;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1974.1092273
