[time-nuts] minimalist sine to square

Bob kb8tq kb8tq at n1k.org
Fri Jan 19 18:37:11 EST 2018


Bob

With a 1V p-p sort of output, a simple matching network will get you into the 4 to 6V p-p range.
Drive that into a 5V compatible CMOS gate and move on …. If you have a super hot output, put 
a 3 db pad on it. 

Bob

> On Jan 19, 2018, at 5:40 PM, Tom Van Baak <tvb at LeapSecond.com> wrote:
> 
>> Tom
>> What's the input signal amplitude?
>> What's the desired output signal (eg 5V CMOS, 3.3V CMOS etc)?
>> Bruce
> 
> It's for a typical 5 or 10 MHz OCXO / Rb / Cs with sinewave output; say, 1 Vpp. The output should be 3.3 or 5 V depending on what the MCU needs. It doesn't have to have stunning performance: think breadboard, PIC, Arduino sort of stuff. I was looking for something in a PDIP-8 package; the same as all the picDIV or picPET chips I use. That's why older parts like µA9637 / DS9637 came to mind.
> 
> /tvb
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.




More information about the time-nuts mailing list