A sigma−delta modulator

john019

【文件名】:06525@52RD_Sigma-Delta Modulator.pdf
【格　式】:pdf
【大　小】:1079K
【简　介】:
【目　录】:A sigma−delta modulator is one method for providing the front end to an analog to
digital converter. When an analog signal is digitized, quantization error is introduced
into the frequency spectrum. The sigma−delta’s function is to push the quantization
error that is near the signal into a higher frequency band near the sampling frequency.
After this is done the signal can be low pass filtered and the original signal can be
restored in a digitized form.

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