AW(Magnus): [sdiy] analogue phase modulation

[Magnus Danielson]

From: "JH." <jhaible at debitel.net>
Subject: Re: AW(Magnus): [sdiy] analogue phase modulation
Date: Thu, 11 Jan 2007 21:23:43 +0100
Message-ID: <000901c735be$6d8b42d0$0200a8c0 at jhsilent>

> I think there's a similar circuit in Electronotes, used as a waveform 
> animator - I'll check the resistor values there.

I haven't looked in the Electronotes (at all) so I doubt it will do any good
to check for a similar circuit either. This one came from my imagination.
Just do the math and it should be obvious to you. The +/- 15V output of the
op-amp needs to be dampend by the 300 k resistor to match the +/- 5V signal
through a 49.9 k resistor. The hidden feature is the assumed +/- 15V power and
assumed rail-to-rail signal.

Cheers,
Magnus