Title:
A PRECISION RELAXATION OSCILLATOR WITH TEMPERATURE COMPENSATION AND VARIOUS OPERATING MODES
Document Type and Number:
WIPO Patent Application WO2000036745
Kind Code:
A9
Abstract:
A precision relaxation oscillator with temperature compensation produces a stable clock frequency over wide variations of ambient temperature. The invention has an oscillation generator (100), two independent current generators (200, 300), a transition detector (400) and a clock inhibiter (500). The outputs of the two programmable, independent current generators are combined to provide a capacitor charging current which is independent of temperature. The precision relaxation oscillator is capable of three modes of operation: fast mode, slow/low power mode and sleep mode. The precision relaxation oscillator with temperature compensation and various operating modes is implemented on a single, monolithic integrated circuit.
Inventors:
NOLAN JAMES B
ELLISON RYAN SCOTT
PYSKA MICHAEL S
ELLISON RYAN SCOTT
PYSKA MICHAEL S
Application Number:
PCT/US1999/028910
Publication Date:
November 23, 2000
Filing Date:
December 06, 1999
Export Citation:
Assignee:
MICROCHIP TECH INC (US)
International Classes:
H03B5/04; H03B5/20; H03K3/011; H03K3/0231; H03L1/02; (IPC1-7): H03K3/011; H03K3/0231; H03K3/66
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