Title :
A multiphase phase/frequency detector-based frequency synthesizer
Author :
Lagareste, Vincent ; Badets, Franck ; Deval, Yann ; Begueret, Jean-Baptiste ; Belot, Didier
Author_Institution :
DAIS, STMicroelectron., Crolles, France
Abstract :
The paper presents a multiphase phase/frequency detector for a PLL-based frequency synthesizer that shares the phase correction information N times in the period of an RF step. The multiphase PFD provides a better rejection of reference spurious tone and reduces the charge pump current without bandwidth and loop filter modification. The 800 MHz MPFD PLL has been implemented in a STMicroelectronics BiCMOS 2.5 V 0.25 μm technology.
Keywords :
BiCMOS integrated circuits; UHF integrated circuits; frequency synthesizers; integrated circuit design; logic circuits; mixed analogue-digital integrated circuits; phase detectors; phase locked loops; 800 MHz; PLL-based frequency synthesizer; bandwidth; charge pump current; logic circuits; loop filter; multiphase phase/frequency detector; phase correction information; reference spurious tone; Bandwidth; Delay; Frequency synthesizers; Logic; Phase detection; Phase frequency detector; Phase locked loops; RF signals; Radio frequency; Voltage-controlled oscillators;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489895
