oscillator

Thread Starter

Imphy

Joined Feb 15, 2008
2
Hi there,

Need to built a low frequency cystal oscillator 100KHz. Must be very low part count.

Any schematic anyone?
Thank you.
 

jpanhalt

Joined Jan 18, 2008
9,681
See: Fairchild CMOS Oscillarors, AN-118. A Schmitt trigger inverter, capacitor, and resistor (3 parts). Three sections from a 74C04 inverter (any CMOS inverter), two resistors, and capacitor give a very good RC oscillator (4 parts). The oscillator-out pin on a PIC chip is also a very low parts count.

How stable and accurate do you need it to be? John
 
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