DocumentCode
1917791
Title
PLL center-frequency tuning using floating-gates
Author
Wisland, Dag T. ; Saether, Trond ; Lande, Tor Sverre ; Hovin, Mats
Author_Institution
Dept. of Inf., Oslo Univ., Norway
fYear
1998
fDate
13-16 Sep 1998
Firstpage
43
Lastpage
46
Abstract
This paper presents a novel technique for center-frequency tuning of phase-locked loops (PLL) by exposing the circuit to UV-light. No external biasing is required, and the tuning procedure is automatic due to the feedback in the PLL. The main purpose with the technique is to compensate for process variations in loops with low VCO-gain. A 433 MHz charge-pump PLL has been designed, and measured results are presented
Keywords
circuit feedback; circuit tuning; phase locked loops; voltage-controlled oscillators; 433 MHz; PLL center-frequency tuning; UV-light exposure; VCO-gain; charge-pump PLL; feedback; floating-gates; process variations; Analog memory; Circuit optimization; Feedback; Frequency conversion; Nonvolatile memory; Phase locked loops; Semiconductor process modeling; Switches; Tuning; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
ASIC Conference 1998. Proceedings. Eleventh Annual IEEE International
Conference_Location
Rochester, NY
ISSN
1063-0988
Print_ISBN
0-7803-4980-6
Type
conf
DOI
10.1109/ASIC.1998.722800
Filename
722800
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