- on Education & Information
- Published in issue 1/2009 on page 74
Low-power crystal oscillator
Using one inverter, for example from a 74HC04 or a 4069, it is easy to construct a crystal oscillator. Unfortunately the current consumption of the device rises considerably. Not, we hasten to add, to rainforest-threatening levels: just to a few milliamps. This could be a significant draw if the circuit is to be powered from a (rechargeable) battery.