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Dear all,
If I use an one-bit quantizer in sigma delta system, we all know there is an effective gain of quantizer should be considered in NTF.
But I cannot figure out why we need this effective gain?
I think the basic definition of quantization noise is quantizer's output subtract it's input...
Dear all,
I want to ask a simple question:
Why high order active filter can violate Barkhausen's criteria?
For instance, if want to design a third-order low pass active filter, there will
be three integrators in the loop. In other words, the phase margin is easily less
than 0 degree.
When we...
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