IC-compatible crystal oscillator


Posted on Jan 26, 2013

Resistors Rl and R2 temperature-stabilize the NAND gates; they also ensure that the gates are in a linear region for starting. Capacitor CI is a dc block; it must have less than Vw ohm impedance at the operating frequency. The crystal runs in a series-resonant mode. Its series resistance must be low; AT-cut crystals for the 1- to 10-MHz range work well. The output waveshape has nearly a 50% duty cycle, with chip-limited rise times.


IC-compatible crystal oscillator
Click here to download the full size of the above Circuit.

The circuit starts well from 0° to 70°C.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Remote Thermometer circuit
Electronic Buzzer with IC timer NE555 circuit diagram
Cheapest High power LED driver circuit diagram
relay found in switch mode power supply
lezers bijdrage
NE568 NE568A;SA568A 150MHz Phase-locked Loop
Amateur Radio circuits



Top