PSpice; Simple ADC/DAC model for DSP modelling

Feb 09, 2006 0 Replies

Hi



I would like to simulate a FIR filter in Orcad PSpice and the method I have found is to:


1 Add a sample/hold circuit
2 Add a ADC
3 Feed ADC directly to DAC
4 Use some transmission lines to get the delayed filter variables
5 Apply the filter to these variable

But, is there a simpler way to do this. Perhaps some fancy ABM block to do the zero order hold and quantization of the converter?



Thanks



Klaus



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