Title :
On charge-pump phase-locked loops modelling
Author_Institution :
Inst. of Electron. Fund., Warsaw Univ. of Technol., Poland
Abstract :
A novel solution to the modelling of charge-pump phase-locked loops (CP-PLLs) is reported. Discrete-time analysis was used to obtain linearized difference equations. A classification has been introduced to facilitate analysis of the CP-PLLs. The Z-transform has been applied. Numerical results indicate that the proposed discrete approach is necessary in the case of broadband CP-PLL systems
Keywords :
Z transforms; phase-locked loops; PLL; Z-transform; analysis; charge-pump phase-locked loops; classification; discrete time analysis; linearized difference equations; modelling; numerical analysis; Charge pumps; Frequency; Graphics; Independent component analysis; Laplace equations; Nonlinear equations; Phase locked loops; Pulse modulation; Space vector pulse width modulation; Voltage-controlled oscillators;
Conference_Titel :
Circuits and Systems, 1988., IEEE International Symposium on
Conference_Location :
Espoo
DOI :
10.1109/ISCAS.1988.15008
