pcm card slot - 5. analog to digital conversion. ( pcm ,dm with short descriptions ) | PPT g2g slot 888

This document discusses two techniques for analog-to-digital conversion: pulse code modulation (PCM) and delta modulation. PCM samples an analog signal at regular intervals, quantizes the signal levels into discrete values, then encodes the samples into a digital bitstream using pulse amplitude modulation. Delta modulation encodes the differences between samples rather than their absolute values, sending a "1" if the value increases and a "0" if it decreases. Both techniques allow analog signals to be represented digitally but PCM works better for signals with small changes while delta modulation is better suited to signals with larger variations between samples. - Download as a PDF or view online for free

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