ic_engr
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I am encountering convergence problem for simulating my ADC which is a 2nd order SIgma Delta Modulator. There are two integrators and there is a quantizer involved. The quantizer output feeds back into the first integrator.
The convergence problem is seen in PSS. I am monitoring the internal nodes, namely the output of the 1st and 2nd integrators and there seems to be okay. They are not clipping towards rail.
Can someone suggest me a work around for this.
Thx
ic_engr
|