Product Summary

The LXP730LE is a multi-purpose Digital Subscriber Line (DSL) framer which complements the Level One SK70725/21 Enhanced MDSL Data Pump (EMDP) to provide seamless transport of data and voice signals over one or more DSL datapaths. The applications of the LXP730LE include Digital Pair Gain Systems, Ethernet Modems T1/E1 Fractional Transport Systems, Videoconferencing Systems, Simultaneous Data - Voice Transport Systems, Wireless Base Station Access Systems.

Parametrics

LXP730LE absolute maximum ratings: (1)Supply voltage VCC: -0.3 to 6V; (2)Storage temperature TST: -65 to +150℃; (3)Recommended supply voltage VCC 4.5 to 5.5 V; (4)Recommended operating temperature TOP -40 to +85℃; (5)Power dissipation PD - 0.3 to 0.6W.

Features

LXP730LE features: (1)Synchronization of external data streams to the DSL line; (2)Multiplexing and demultiplexing of independent data streams for voice and data; (3)Loopback of payload data at the DSL interface; (4)Creation, insertion, and recovery of the MDSL Overhead (MOH) structure, performance monitoring, and message transport required in a DSL system with a capacity of up to 32 kbps; (5)Supports two input/output data streams simultaneously; (6)Single part architecture allows one chip to be used economically in both central and remote locations; (7)Supports systems with point-to-point architectures; (8)Alternate Hardware Control mode (HWC) for operation without an external microprocessor.

Diagrams

LXP730LE block diagram