A micropower battery-operated one-pin crystal oscillator

Author

Zadeh, Ali E.

Author_Institution

Siemens Pacesetter Inc., Sylmar, CA, USA

fYear

1993

fDate

16-18 Aug 1993

Firstpage

1382

Abstract

This paper describes the theory and analysis of a CMOS one-pin crystal oscillator suited for battery operated devices. The oscillator uses only one package pin. No other external components other than the crystal itself are needed. The oscillator is intended to operate at 32 kHz with current consumption in the range of 200-250 nA and a single supply voltage of -1.5 V. Both theoretical analysis and computer simulation are used to investigate small signal behavior, large signal operation, and the start-up condition for the oscillator. Effects of various chip parasitic elements on the performance of the oscillator are also examined using MATLAB and SPICE programs

Keywords

CMOS analogue integrated circuits; SPICE; circuit analysis computing; crystal oscillators; equivalent circuits; -1.5 V; 200 to 250 nA; 32 kHz; CMOS oscillator; MATLAB; SPICE; chip parasitic elements; computer simulation; large signal operation; micropower battery-operated oscillator; one-pin crystal oscillator; small signal behavior; start-up condition; Batteries; Capacitors; Circuits; Diodes; Resistors; SPICE; Signal analysis; Very large scale integration; Voltage; Voltage-controlled oscillators;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1993., Proceedings of the 36th Midwest Symposium on

Conference_Location

Detroit, MI

Print_ISBN

0-7803-1760-2

Type

conf

DOI

10.1109/MWSCAS.1993.343363

Filename

343363