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ISO-
CMOS ST-BUS™ FAMILY MT8979 CEPT PCM 30/CRC-4 Framer & Interface
Features
• • • • • • • • • • Single chip primary rate 2048 kbit/s CEPT transceiver with CRC-4 option Meets CCITT Recommendation G.
704 Selectable HDB3 or AMI line code Tx and Rx frame and multiframe synchronization signals Two frame elastic buffer with 32 µ sec jitter buffer Frame alignment and CRC error counters Insertion and detection of A, B, C, D signalling bits with optional debounce On-chip attenuation ROM with option for ADI codecs Per channel, overall and remote loop around ST-BUS compatible
ISSUE 7
May 1995
Ordering Information MT8979AC 28 Pin Ceramic DIP MT8979AE 28 Pin Plastic DIP MT8979AP 44 Pin PLCC -40° t...