I applied 5v + ground to the proper pins. Pin 1 left open. Results vary from part to part, but within 10kHz of 1MHz.....especially if voltage is dropped to 4.1v. 3.3v output is further off. I don't know if a load on the output makes a difference...(load resistor value ? ). Scope shows a square wave...but not a pretty one. A 10nf cap across the power pins helps freq stability, but does nothing to the scope image.
Is it pointless to attempt to get a good sine wave out of this? ...or best to get a real sine wave part ? These I'm guessing, are TTL/CMOS type. =Randy= ============== > Hi Randy: > > Those appear to be the very common 14 pin dip IC > oscillators. > pin 7 = ground > pin 14 = Vdd > pin 8 = Out > pin 1 may be no connection or may be inhibit. Check > with DMM in Ohm and diode > function. > > It sure looks like: > http://www.valpeyfisher.com/images/productshots/xo/vf150.jpg > > > Have Fun, > > Brooke Clarke +++++++++++++++++++++++++ > > Randy Leifer wrote: > > Novice here. > > I have a small electronics lab at home. > > > > PART 1: > > I have these Valpey Fisher VF154 1 MHz > oscillators. > > I could not find any details at the VF website on > this > > particular model #. (OC, VC, ???) > > Picture/link below.... > > > > PART 2: > > Does anyone have a link to a simple circuit, where > I > > could use these to get a stand-alone signal @ > around 1 > > or 2 volts? > > This is just an educational value/exercise for me, > I > > don't really have an intended use (yet) for these. > > I have some high-speed opamps and buffers....? > > > > Thanks, > > =Randy Leifer= >http://i5.photobucket.com/albums/y177/Midiot/DSCN3333.jpg > > === message truncated === _______________________________________________ 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.
