DocumentCode
516507
Title
Digital Controlled Oscillator
Author
Giebel, Burkhard ; Lutz, Jürgen ; O´Leary, Paul
Author_Institution
Intermetall, Halbleiterwerk der Deutsche ITT Industries GmbH, Hans-Bunte-StraÃ\x9fe 19, 7800 Freiburg, West Germany. Tel. (49)-761-517738
fYear
1988
fDate
21-23 Sept. 1988
Firstpage
300
Lastpage
304
Abstract
A monolithically integrated, digitally controlled oscillator is presented. It has an output frequency range from 18.9 Hz to ≫ 20 MHz, the long term stability of a quartz oscillator and a short term clock edge uncertainty with a standard deviation of 0.4 ns. The digital frequency control is fully linear with a resolution of 18.9 Hz. The only required external component is a reference quartz. The circuit operates from a single 5 V power supply and is fabricated in a 1.5 ¿m, double metal, single poly, CMOS process. The chip area is 4.1 mm2.
Keywords
CMOS logic circuits; CMOS process; Circuit stability; Clocks; Digital circuits; Digital control; Digital-controlled oscillators; Frequency; Phase locked loops; Voltage-controlled oscillators;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 1988. ESSCIRC '88. Fourteenth European
Conference_Location
Manchester, UK
Type
conf
Filename
5468292
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