XRT83VSH316IB集成電路（IC）的電信規(guī)格書PDF中文資料

GENERAL DESCRIPTION

The XRT83VSH316 is a fully integrated 16-channel short-haul line interface unit (LIU) that operates from a 1.8V Inner Core and 3.3V I/O power supplies. 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 LIU features are programmed through a standard parallel microprocessor interface or SPI (Serial Mode).

FEATURES

? Fully integrated 16-Channel short haul transceivers for T1/J1 (1.544MHz) and E1 (2.048MHz) applications

? Parallel or SPI Microprocessor Interface

? T1/E1/J1 short haul and clock rate are per port selectable through software without changing components

? Internal Impedance matching on both receive and transmit for 75? (E1), 100? (T1), 110? (J1), and 120? (E1) applications are per port selectable through software without changing components

? Power down on a per channel basis with independent receive and transmit selection

? Five pre-programmed transmit pulse settings for T1 short haul applications per channel

? User programable Arbitrary Pulse mode for T1 and E1

? On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel basis

? Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit path per channel

? Driver failure monitor output (DMO) alerts of possible system or external component problems

? Transmit outputs and receive inputs may be High impedance for protection or redundancy applications on a per channel basis

? Support for automatic protection switching

? 1:1 and 1+1 protection without relays

? Receive monitor mode handles 0 to 6dB resistive attenuation (flat loss) along with 0 to 6dB cable loss for both T1 and E1

? Loss of signal (LOS) according to ITU-T G.775/ETS300233 (E1) and ANSI T1.403 (T1/J1) for system (SLOS) and line (RLOS) side diagnostics

? Programmable data stream muting upon RLOS detection

? On-Chip HDB3/B8ZS encoder/decoder with an internal 16-bit LCV counter for each channel

? On-Chip digital clock recovery circuit for high input jitter tolerance

? QRSS/PRBS pattern generator and detection for testing and monitoring for system (SPRBS) and line (PRBS) side diagnostics

? Error and bipolar violation insertion and detection

APPLICATIONS

? 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 Platforms (IMAPs)

? Integrated Access Devices (IADs)

? Inverse Multiplexing for ATM (IMA)

? Wireless Base Stations