[sdiy] Can you call the low pass filter in a frequency shifter an antialiasing filter?

Donald Tillman don at till.com
Tue Oct 5 20:08:12 CEST 2010

On Oct 4, 2010, at 11:02 PM, cheater cheater wrote:

> So is there an easy explanation of what a quadrature mixer is? I'm
> happy for heavy maths, but heavy electronics scare me a bit ...
> I'm afraid the only things I can find arr involved radio-world descriptions.

Check out the writeup of the Bode Frequency Shifter on my Moog Patent Reviews page:


(It's intentionally very concise and abbreviated, but it should give you everything you need.)

  -- Don

Don Tillman
Palo Alto, California
don at till.com

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