Title :
Analysis and verification on side effect of anti-backlash delay in phase-frequency detector
Author_Institution :
MOOSACHER STR, Munich, Germany
Abstract :
The side effect of the anti-backlash delay in a digital phase-frequency detector is analyzed. It is shown that the frequency tracking ability of the detector is decreased by the delay, so that the lock-in transition time will increase. Furthermore, it is shown that the side effect is mainly caused by the delay to the front edge of the reset pulse. Both computer simulation and experimental verification shows the analysis is correct. The work gives an insight of the detector´s working principle and will be useful for its design.
Keywords :
delays; detector circuits; digital circuits; anti-backlash delay; digital phase-frequency detector; frequency tracking ability; lock-in transition time; reset pulse front edge; Charge pumps; Computational modeling; Computer simulation; Delay effects; Modems; Phase detection; Phase frequency detector; Phase locked loops; Space vector pulse width modulation; Voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1211023
