[sdiy] SSM2040 filter question

[ASSI]

On Tuesday 11 November 2003 10:57, Czech Martin wrote:
> is it justified to think of a nonlinear system as two sections:
> distortion and linear filter?
> In that case a taylor series expansion and the usual digital filter
> stuff will do the trick.

"Weakly nonlinear filters can be analyzed, in general, using a Volterra 
series [...] a simplified form of a Volterra series representation 
where distortion is generated locally by the nonlinear of the circuit, 
and the individual distortion contributions are assumed to `propagate´ 
to the output with linear transfer functions."

Cited from Y. Palaskas, Y. Tsividis: "Dynamic Range Optimization of 
Weakly Nonlinear, Fully Balanced, Gm-C Filters with Power Dissipation 
Constraints", IEEE Transactions on Circuits and Systems II: Analog and 
Digital Signal Processing, October 2003, Number 10, Volume 50


Achim.

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