DS2148GN PDF File ( Datasheet )

DS2148, DS21Q48 5V E1, T1, J1 Line Interface www.maxim-ic.com FEATURES § § § § § Complete E1, T1, or J1 line interface unit (LIU) Supports both long- and short-haul trunks Internal software-selectable receive-side termination for 75Ω, 100Ω, 120W 5V power supply 32-bit or 128-bit crystal-less jitter attenuator requires only a 2.048MH- master clock for both E1 and T1 with option to use 1.544MH- for T1 Generates the appropriate line build outs, with and without return loss, for E1 and DSX