EE 445S Real-Time Digital Signal Processing Laboratory - Lecture 10
Lecture by Prof. Brian L. Evans
- Example tradeoffs in sampling rate and amplitude resolution for
analog-to-digital converters a.k.a. digitizers:
two channels, 8 bits/sample, 12.5 GS/s sampling rate, 5 GHz bandwidth (Mar. 2011)
NI PXI-5154: two channels, 8 bits/sample, 2 GS/s sampling rate, 1 GHz bandwidth
NI PXIe-5122: 14 bits/sample, 100 MS/s sampling rate
NI PXI-5192: 16 bits/sample, 15 MS/s sampling rate
NI PXI-5192: 24 bits/sample, 500 kS/s sampling rate
- Understanding PDM Digital Audio, Dr. Thomas D. Kite, Audio Precision.
"PDM stands for pulse density modulation.
However, it is really better summarized as 'oversampled 1-bit audio',
as it is nothing more than a high sampling rate, single-bit digital system."
This application note describes the signal processing involved in creating
the output signal for a digital microphone.
Last updated 06/04/2014.
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