XRT5997ES [EXAR]

The XRT5997 is a seven-channel E1 line interface unit with independent transmitter and receiver functions for each channel. It accepts TTL or CMOS level signals from terminal equipment and outputs bipolar pulses compliant with ITU-T G.703 for E1 rates. The receiver can be transformer or capacitive-coupled to the line, and it detects and clears Loss of Signal (LOS) per ITU-T G.775. It operates over the industrial temperature range with ultra-low power dissipation and +3.3V supply operation.