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Sun Dec 26 00:41:52 EST 2010

CD4049UBE current mirror

Is it useful to use a CD4049UBE as a matched differential pair or
current mirror? 

Not as differential pair as the correct leads are not available, but a
current mirror maybe?

In [2] some interesting things are mentioned:

  - The well-known distortion effects.

  - Some Fairchild application notes.

  - "Datong Clipper"[3], which modulates up the sound, clips, then
    modulates down.  This makes sure all the harmonics are up.

[1] http://www.electronicskb.com/Uwe/Forum.aspx/design/6079/Analog-use-of-CMOS-logic-chips
[2] entry://20101217-001132
[3] http://myweb.tiscali.co.uk/david.brewerton/DatongRFC.pdf




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