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Free-running on-chip oscillator

Low power relaxation oscillator is a programmable free-running clock generator for coarse clock generation. The design uses a relaxation oscillator with fully integrated elements so no external components are required. The oscillator is designed to have excellent supply noise rejection so it is ideal for use in noisy SoC environments.

特色

Glitch-free frequency programmability to calibrate out process variations Frequency accuracy as good as 1.5% over voltage, temperature, and process aging after initial calibration
Low sensitivity to supply voltage and temperature changes
Fast initial settling time
Low power operation -- below 100uW and as low as 20uW in some processes
Low period jitter
Low area