Datasheet Summary
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AUGUST 2006
PRELIMINARY
REV. P1.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
GENERAL DESCRIPTION
The XRT83VSH28 is a fully integrated 8-channel short-haul line interface unit (LIU) that operates from a 1.8V and a 3.3V power supply. Using internal termination, the LIU provides one bill of materials to operate in E1 75Ω or 120Ω mode with minimum external ponents. The LIU Features are programmed through a standard parallel or serial microprocessor interface. EXAR’s LIU has patented high impedance circuits that allow the transmitter outputs and receiver inputs to be high impedance when experiencing a power failure or when the LIU is powered off. Key...