(China (Mainland))
Product Summary
The MT8976AE is an ISO-CMOS ST-Bus family T1/ESF framer circuit. The MT8976AE is Mitels second generation T1 interface solution. The MTMT8976AE meets the extended super frame format (ESF), the current D3/D4 format and is compatible with SLC-96 systems. The MT8976AE interfaces to DS1 1.544 Mbit/sec digital trunk.
Parametrics
MT8976AE absolute maximum ratings: (1)Power Supplies with respect to VSS VDD: -0.3 7 V; (2)Voltage on any pin other than supplies: VSS-0.3 VDD+0.3 V; (3)Current at any pin other than supplies: 40 mA; (4)Storage Temperature TST: -55 125 ℃; (5)Package Power Dissipation P: 800 mW.
Features
MT8976AE features: (1)D3/D4 or ESF framing and SLC-96 compatible; (2)2 frame elastic buffer with 32 msec jitter buffer; (3)Insertion and detection of A, B,C,D bits. Signalling freeze, optional debounce; (4)Selectable B8ZS, jammed bit (ZCS) or no zero code suppression; (5)Yellow alarm and blue alarm signal capabilities; (6)Bipolar violation count, FT error count, CRC error count; (7)Selectable robbed bit signalling; (8)Frame and superframe sync. signals, Tx and Rx; (9)AMI encoding and decoding; (10)Per channel, overall, and remote loop around.
Diagrams
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