Hello,
I don't know squat about crystal oscillators and I need to build a VERY accurate time base for a clock project of mine. These are the parameters needed:
1. A center-frequency (fundamental) of 1.00000 MHz.
2. Crystal-controlled for stability with an adjusting device; i.e., trimmer cap, coil or other.
3. Square wave output; 50% duty-cycle; +5-volt maximum output for TTL.
4. +9-volt supply (battery)
5. Low parts count, if possible.
Although I need it to have a CF of 1.00000MHz, I actually need it to oscillate slightly above that frequency, hence the adjuster device. The reason for this is because cutting or grinding or whatever crystal companies do to make a crystal in the exact frequency I need would cost me over $150.00 for just ONE crystal!!
Anyway, any and all help is greatly appreciated. Thank you. <ckd>