Hi all I ordered a 8.192MHZ TCXO 1.0PPM Now it was supposed to have a clipped sine wave output? however it looks more like a saw tooth, I assumed a clipped sine would be a sine wave with the peaks clipped, I am running this through a 150pF cap and then using a inverter amplifier i.e. 74HC04 with a 1M resistor from input to output.
am I over loading or loading down the the oscillator, or should I be changing the buffer capacitor? I mean the circuit is working but its not 45/55 duty cycle the out put looks like the first 0 -90 degrees of a sine wave then drops to zero stays there for about 20% of the duty cycle then ramps back up? I have it set to 4.9 volts in its rated at 5.0 volts do I need to increase this to a little over 5.0 volts http://www.myfrequencyxtal.com/bbs/data/tcxo/M4_S_tcxo.pdf link to data sheet however i just realised the mistake I could have made i have grounded the V.C pin I didn't think that would matter as its not a VCTCXO??? any hep would be appreciated -- #include <sig.h> /* ================ */ Michael /*How crazy does it get on the moon, when theres a full Earth?*/ _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
