XRT83L30IV

Packaging :
Operating Supply Voltage : 3.3 V
Maximum Operating Temperature : + 85 C
Mounting Style : SMD/SMT
Package / Case : TQFP-64


Features:

•Fully integrated single-channel long-haul and short-haul transceiver for E1,T1 or J1 applications.
•Adaptive Receive Equalizer for cable attenuation of up to 45dB for T1 and 43dB for E1.
•Programmable Transmit Pulse Shaper for E1,T1 or J1 short-haul interfaces.
•Five fixed transmit pulse settings for T1 short-haul applications plus a fully programmable waveform generator for transmit output pulse shaping.
•Programmable Transmit Line Build-Outs (LBO) for T1 long-haul application from 0dB to -22.5dB in three 7.5dB steps.
•Tri-State transmit output and receive input capability for redundancy applications
•Selectable receiver sensitivity from 0 to 36dB or 0 to 45dB cable loss for T1 @772kHz and 0 to 43dB for E1 @1024kHz.
•High receiver interference immunity
•Receive monitor mode handles 0 to 29dB resistive attenuation along with 0 to 6dB of cable attenuation for both T1 and E1 modes.
•Supports 75 and 120 (E1), 100 (T1) and 110 (J1) applications.
•Internal and external impedance matching for 75,100, 110 and 120.
•Transmit return loss meets or exceeds ETSI 300 166 standard
•On-chip digital clock recovery circuit for high input jitter tolerance
•Crystal-less digital jitter attenuator with 32-bit or 64-bit FIFO Selectable either in transmit or receive path
•On-chip frequency multiplier generates T1 or E1 Master clocks from variety of external clock sources
•On-chip transmit short-circuit protection and limiting, and driver fail monitor output (DMO)
•Receive loss of signal (RLOS) output
•On-chip HDB3/B8ZS/AMI encoder/decoder
•QRSS pattern generation and detection for testing and monitoring
•Error and Bipolar Violation Insertion and Detection
•Receiver Line Attenuation Indication Output in 1dB steps
•Network Loop-Code Detection for automatic Loop-Back Activation/Deactivation
•Transmit All Ones (TAOS) and In-Band Network Loop Up and Down code generators
•Supports Analog, Remote, Digital and Dual Loop-Back Modes
•Meets or exceeds T1 and E1 short-haul and long-haul network access specifications in ITU G.703, G.775, G.736 and G.823; TR-TSY-000499; ANSI T1.403 and T1.408; ETSI 300-166 and AT&T Pub 62411
•Supports both Hardware and serial Microprocessor interface for programming
•Programmable Interrupt
•Low power dissipation
•Logic inputs accept either 3.3V or 5V levels
•Single +3.3V Supply Operation
•64 pin TQFP package
•-40°C to +85°C Temperature Range

The above info is from (www.seekic.com)


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


Pinout




Specifications

Storage Temperature...............-65 to +150
Operating Temperature............. -40 to +85
Supply Voltage............................-0.5V to +3.8V
Vin................................................-0.5 to +5.5V

Edited by (www.seekic.com) ,the biggest IC PDF and datasheet download site.


Description

The XRT83L30 is a fully integrated single-channel long-haul and short-haul line interface unit for T1(1.544Mbps) 100, E1(2.048Mbps) 75 or 120and J1 110 applications.

In long-haul applications the XRT83L30 accepts signals that have passed through cables from 0 feet to over 6000 feet in length and have been attenuated by 0 to 45dB at 772kHz in T1 mode or 0 to 43dB at 1024kHz in E1 mode. In T1 applications, the XRT83L30 can generate five transmit pulse shapes to meet the short-haul Digital Cross-Connect (DSX-1) template requirements as well as for Channel Service Units (CSU) Line Build Out (LBO) filters of 0dB, -7.5dB, -15dB and -22.5dB as required by FCC rules. It also provides programmable transmit pulse generator that can be used for arbitrary output pulse shaping allowing performance improvement over a wide variety of conditions.

The XRT83L30 provides both Serial Host microprocessor interface and Hardware Mode for programming and control. Both B8ZS and HDB3 encoding and decoding functions are included and can be disabled as required. On-chip crystal-less jitter attenuator with a 32 or 64 bit FIFO can be placed either in the receive or the transmit path with loop bandwidths of less than 3Hz. The XRT83L30 provides a variety of loop-back and diagnostic features as well as transmit driver short circuit detection and receive loss of signal monitoring. XRT83L30 supports internal impedance matching for 75, 100, 110 and 120 for both transmitter and receiver. For the receiver this is accomplished by internal resistors or through the combination of one single fixed value external resistor and programmable internal resistors. In the absence of the power supply, the transmit output and receive input are tri-stated allowing for redundancy applications. The XRT83L30 chip includes an integrated programmable clock multiplier that can synthesize T1 or E1 master clocks from a variety of external clock sources

The above info is from (www.seekic.com)