[sdiy] 5 Band EQ in-a-Chip

[Jaroslav Lukes]

> From: owner-synth-diy at dropmix.xs4all.nl [mailto:owner-synth-
> I found a nifty little IC that has a 2 channel, 5 band
> EQ all inclusive; just slap on a few passives, add
> power, and you're ready to rock to roll.
> 
> S1A0234B01
> 5 BAND DUAL GRAPHIC EQ AMP
> http://www.samsung.com/Products/Semiconductor/SystemLSI/Analog/RadioTuner/
> S1A0234B01/S1A0234B01.htm
> 
> Alas, it appears to be out of production;
> Anyone know of a replacement/equivalent chip?

Replacement is easy - just few transistors (or opamp) as synthetic inductor
and quad opamp as dual pre-and-post-amp.

JL.