VERY LOW POWER GATED CRYSTAL OSCILLATOR

Published:2012/9/4 20:55:00 Author:Ecco | Keyword: VERY LOW , POWER GATED , CRYSTAL OSCILLATOR | From:SeekIC

The circuit gates the output of a continuously operating 32KHz crystal oscillator to the input of a C-MOS buffer when clock pulses are needed. The technique gets around the problem of a slow starting crystal oscillator by keeping the oscillator going and switching on a transistor power stage only as needed. The method keeps the standby power consumption to a very low 1uA when used with a 3v supply. Source: discovercircuits



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