Product Summary

The LXT6234QE E-Rate Multiplexer is a single-chip solution for multiplexing four tributary channels into a single high speed data stream and for demultiplexing a high speed data stream back to four tributary channels. The LXT6234QE E-Rate Multiplexer encodes and decodes HDB3 zero suppression line coding used on E1, E2, and E3 signals. It consists of a multiplexer block, a demultiplexer block, five HDB3 decoders, and five HDB3 encoders.

Parametrics

Absolute maximum ratings: (1)DC Supply Voltage, VDD: -0.3 to 7.0 V; (2)Input Voltage, VIN: 0 to VDD+ 0.3 V; (3)Input Current, IIN: 10 μA max; (4)Ambient Operating Temperature, TAM: -40 to +85 ℃; (5)Storage Temperature, TSTG: -55 to +150 ℃.

Features

Features: (1)Performs four-E1 to one-E2, or four-E2 to one-E3 multiplexing. Five ICs will implement a sixteen-E1 to one-E3 multiplexer; (2)Fully compliant with the G.742 and G.751 ITU recommendations. Fully compliant with G.703 wheused with LXT305/332 Line Interface; (3)A robust frame-acquisitioand frameholding algorithm minimizes frame slippage, acquires and holds frame below 10-2 bit error rate; (4)Four auxiliary low speed data or flag channels are available via the Stuffing Bits oeach tributary channel; (5)Access to the Alarm bit and the National bit. These cabe used as recommended by ITU or for proprietary use; (6)Five independent HDB3 CODECs allow multiplexer I/O ieither HDB3 or NRZ formats. The LXT6234 caalso functioas a stand alone five-channel HDB3 transcoder.

Diagrams

LXT6155
LXT6155
Other

Data Sheet
Negotiable 
LXT6234
LXT6234
Other

Data Sheet
Negotiable