MC145554 filter equivalent, pcm codec filter.
of the MC145554/57 Plus:
* Mu
–Law Companding MC145564
* A
–Law Companding MC145567
* Push
–Pull Power Drivers wi.
and contain an on
–chip precision voltage reference. The MC145554 (Mu
–Law) and MC145557 (.
A codec
–filter is used for digitizing and reconstructing the human voice. These devices were developed primarily for the telephone network to facilitate voice switching and transmission. Once the voice is digitized, it may be switched.
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