XRT59L91 Single Chip E1 Line Interface Unit

The XRT59L91 and XRT5997 are primarily targeted toward manufacturers of E1 equipment. Some of the primary target applications include telecommunications manufacturers utilizing multi-channel line cards, as well as, network multiplexers, central office switches and digital cross connects. Typical of SDH applications, E1 line cards have 21 channels. By virtue of Exar's innovative seven-channel design (XRT5997), only three devices, instead of the customary seven, are needed for a standard Analog Front End (AFE). This device count reduction improves both board real estate, and system costs allowing OEMs to offer the latest, most competitive systems to their customers. For each device, there is an independent driver and receiver circuitry for each channel, allowing seamless Pulse Code Modulation (PCM) interfacing. Each of the drivers can be independently disabled giving designers' greater flexibility in developing optimal power management and back-up redundancy solutions. Because both devices are based upon standard CMOS process, conversion of AMI line coded signals to TTL/CMOS logic levels is virtually automatic. In addition, designers have the flexibility to interface to either 75 or 120-Ohm lines for transformer coupled configurations. The XRT59L91ID is available in a 16-lead JEDEC SOIC package.

技术特性
  • Complete Single- or Seven-Channel E1 Transceiver
  • Low Power 3.3V Operations
  • TCLK Duty Cycle Adjust Circuitry
  • Pb-Free, RoHS Compliant Versions Offered
应用领域 APPLICATION
  • Network Mulitplexers
  • Central Office Switch
  • Digital Cross Connext
  • Telecommunications
技术指标
频道数量 1
数据传输速率(s) E1
Clk Rec No
短途/长途 S
OpPwr Sup/Max Cur 3.3V ±5%, 56mA
封装 SOIC-16
Recommended
订购信息 Ordering Information
器件型号 有害物质限制 最低温度 最高温度 状态 立刻购买 申请样片
XRT59L91IV-F -40 85 Active

 

应用技术支持与电子电路设计开发资源下载 版本信息 大小
XRT59L91 数据资料DataSheet下载:pdf Rev.V2 2 页