文档介绍：A MULTI-BAND PHASE-LOCKED LOOP FREQUENCY SYNTHESIZER
A Thesis
by
SAMUEL MICHAEL PALERMO
Submitted to the Office of Graduate Studies of
Texas A&M University
in partial fulfillment of the requirements for the degree of
MASTER OF SCIENCE
August 1999
Major Subject: Electrical Engineering
A MULTI-BAND PHASE-LOCKED LOOP FREQUENCY SYNTHESIZER
A Thesis
by
SAMUEL MICHAEL PALERMO
Submitted to Texas A&M University
in partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE
Approved as to style and content by:
_____________________________ _____________________________
José Pineda de Gyvez Edgar Sánchez-Sinencio
(Chair mittee) (Member)
_____________________________ _____________________________
Sherif H. K. Embabi Duncan M. H. Walker
(Member) (Member)
_________________________
Chanan Singh
(Head of Department)
August 1999
Major Subject: Electrical Engineering
iii
ABSTRACT
A Multi-Band Phase-Locked Loop Frequency Synthesizer. (August 1999)
Samuel Michael Palermo, ., Texas A&M University
Chair of mittee: Dr. José Pineda de Gyvez
A phase-locked loop (PLL) frequency synthesizer suitable for multi-band transceivers is
proposed. The multi-band PLL frequency synthesizer uses a switched tuning voltage-
controlled oscillator (VCO) that covers a frequency range of 111 to 297MHz with a low
average conversion gain of . A key design feature of the multi-band PLL
frequency synthesizer is that the VCO tuning switches are controlled only by the normal
loop dynamics. No external control is needed for the synthesizer to switch to different
bands of operation. The multi-band PLL frequency synthesizer is implemented in a
standard µm CMOS technology using a supply. The frequency synthesizer has
a measured frequency range of 111 to 290MHz with phase noise up to –96dBc/Hz at a
50kHz carrier offset. parisons of the multi-band PLL frequency
synthesizer with a similar classic digital PLL f