821004J codec equivalent, quad non-programmable pcm codec.
* 4 channel CODEC with on-chip digital filters
* Selectable A-law or µ-law companding
* Master clock frequency selection: 2.048 MHz, 4.096 MHz or
8.192 MHz − .
such as PBX, Central Office Switch, Digital Telephone and Integrated Voice/ Data Access Unit.
FUNCTIONAL BLOCK DIAGRAM
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The 821004J is a single-chip, four channel PCM CODEC with on-chip filters. The device provides analog-to-digital and digital-to-analog conversions and supports both a-law and µ−law companding. The digital filters in 821004J provides the necessary tra.
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