Datasheet4U Logo Datasheet4U.com

XRT59L921 - TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT

Description

The XRT59L921 is an optimized twenty-one channel, E1, line interface unit, fabricated using low power CMOS technology.

The device contains twenty-one independent E1 channels.

It is primarily targeted towards the SDH multiplexers that accommodate TU12 Tributary Unit Frames.

Features

  • Twenty-One (21) Independent E1 (CEPT) Line Interface Units Recovery) (Transmitter, Receiver, and.
  • Transmit Output Pulses that are Compliant with the ITU-T G.703 Pulse Template Requirement for 2.048Mbps (E1) Rates.
  • On-Chip Pulse Shaping for both 75Ω and 120Ω line drivers.
  • Detects and Clears LOS (Loss of Signal) Per ITU-T G.775.
  • Operates over the Industrial Temperature Range.
  • Ultra Low power consumption.
  • 3.3V operation with 5V To.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
XRT5990 Single Chip Pulse / Tone Dialer Exar
XRT71D03 3 CHANNEL E3/DS3/STS-1 JITTER ATTENUATOR Exar
XRT7296 INTEGRATED LINE TRANSMITTER Exar
XRT72L13 M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC ETC
XRT72L52 TWO CHANNEL DS3/E3 FRAMER IC Exar

Other Datasheets by Exar (now MaxLinear)

Part Number Description
XRT59L91 Single-Chip E1 Line Interface Unit
XRT5997 Seven-Channel E1 Line Interface Unit
XRT5683A PCM Line Interface Chip
XRT56L22 Low Power Repeater/Receiver
XRT56L85 Low Power PCM Line Interface

Full PDF Text Transcription

Click to expand full text
www.DataSheet4U.com MARCH 2007 XRT59L921 TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT REV. 1.2.1 GENERAL DESCRIPTION The XRT59L921 is an optimized twenty-one channel, E1, line interface unit, fabricated using low power CMOS technology. The device contains twenty-one independent E1 channels. It is primarily targeted towards the SDH multiplexers that accommodate TU12 Tributary Unit Frames. Line cards in these units multiplex 21 E1 channels into higher SDH rates. Devices with 21 E1 interfaces such as the XRT59L921 provide the most efficient method of implementing 63-channel line cards. Each channel performs the driver and receiver functions necessary to convert bipolar signals to logical levels and vice versa.
Published: |