Single IC oscillator +/- 5 V supply

How about just AC couple the output of a 0 - 5V Oscillator?

If you can locate a suitable TTL level (0 to 5V) output, you can drive that into a MAXIM MAX232 chip and get +/- output swing for your device.

I believe you can get about +/- * volts out of the MAX232 and if this is to high, use a pot to voltage divide it down.

Cheers!

pdrunen

Can anyone point me to a single IC oscillator circuit that uses a crystal timebase. and runs off a split supply?

I need 1KHz and was looking at a CD4060. However, a +/- 2.5V input swing is required for an Analog Devices MLT04 multipler.

Kind regards,

Robert Wilson

WOW !

Words fail me.

Graham

Run the CD4060 off your +/-5V supply and use an attenuator on the output.

Graham

"Robert Wilson" schreef in bericht news: snipped-for-privacy@4ax.com...

Well,

I see two possibilities. One: Use a capacitor. Two: Power the CD4060 with plus and minus 5V. A voltage divider between the output and 0V will give the +/- 2.5V you need.

petrus bitbyter

You can run any 5V type logic with its positive supply pin tied to a +2.5V supply and its negative supply pin tied to -2.5V. It only sees the 5V difference, as long as you don't let it see the real ground.

Chris

Others have suggested the obvious.

How about floating the MLT04 up at +2.5V?

Also why are you using a multiplier in the first place. An op-amp and analog switch may be a better way to go.

Better yet use a voltage output DAC and wire the 1KHz square wave to the data input.