Application• T1 Digital Cross Connects (DSX-1)• ISDN Primary Rate Interface• CSU/DSU E1/T1/J1 Interface• T1/E1/J1 LAN/WAN Routers• Public Switching Systems and PBX Interfaces• T1/E1/J1 Multiplexer and Channel Banks• Integrated Multi-Service Access Platform...
XRT83SH314: Application• T1 Digital Cross Connects (DSX-1)• ISDN Primary Rate Interface• CSU/DSU E1/T1/J1 Interface• T1/E1/J1 LAN/WAN Routers• Public Switching Systems and PBX Inte...
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Specifications | |
No. ofCH | 14 |
DataRate(s) | T1/E1/J1 |
Clk Rec | Yes |
SH/LH | S |
Temp.Range | Ind. |
OpPwr Sup/Max Cur | 3.3V ±5%, TBD |
Pkgs | TBGA-304 |
Storage Temperature | -65 to +150 |
Operating Temperature | -40 to +85 |
Supply Voltage | -0.5V to +3.8V |
Vin | -0.5V to +5.5V |
The XRT83SH314 is a fully integrated 14-channel short-haul line interface unit (LIU) that operates from a single 3.3V power supply. Using internal termination, the LIU provides one bill of materials to operate in T1, E1, or J1 mode independently on a per channel basis with minimum external components.
The XRT83SH314 LIU features are programmed through a standard 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 design features within the LIU optimize 1:1 or 1+1 redundancy and non-intrusive monitoring applications to ensure reliability without using relays.
The XRT83SH314 on-chip clock synthesizer generates T1/E1/J1 clock rates from a selectable external clock frequency and has five output clock references that can be used for external timing (8kHz, 1.544Mhz, 2.048Mhz, nxT1/J1, nxE1).
Additional features of XRT83SH314 include RLOS, a 16-bit LCV counter for each channel, AIS, QRSS/PRBS generation/detection, TAOS, DMO, and diagnostic loopback modes.