XRT81L27 7-Channel E1 Line Interface Unit with Clock Recovery

Long established in the E1 arena, Exar proves again, it has the right combination of design expertise, and market knowledge to bring innovative products to market. The XRT82D20 (single-channel), and the XRT81L27 (seven-channel) join several other E1 AFEs and LIUs to give designers a multitude of architecture combinations to meet, or exceed their OEM market requirements. These new E1 devices, coupled with an already extensive product line including two seven-channel AFEs (XRT5897 and XRT5997), several four-channel devices (XRT5894, XRT5793, XRT5794 and XRT82L24), plus two single-channel parts (XRT59L91 and XRT7288) give EXAR a distinct marketplace advantage. These new products, along with Exar's other E1 LIUs and AFEs give customers a clear, and rich product family spanning DS1/E1 to SONET/SDH. Applications for these new devices include multiplexers (PDH and SDH), digital cross connects, DECT (Digital European Cordless Telephone) base stations, and CSU/DSU equipment.

技术特性

Seven (or one) independent E1 (CEPT) line interface units (transmitter and receiver) one chip
Generates transmit output pulses that are compliant with the ITU-T G.703 pulse template for 2.048Mbps (E1) rates
On-chip pulse shaping
Compliant with ITU-T G. 838 jitter tolerance requirements
Declares and clears Loss of Signal (LOS) meeting ITU-G.775 standards
Ultra low power dissipation
Low power 3.3V operation
Functions over industrial temperature range
Pb-Free, RoHS Compliant Versions Offered

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
XRT81L27IV-F		-40	85	Active

技术指标

频道数量	7
数据传输速率(s)	E1
Clk Rec	Yes
短途/长途	S
OpPwr Sup/Max Cur	3.3V ±5%, 55mA
封装	TQFP-128

应用领域 APPLICATION

PDH multiplexers
SDH multiplexers
Digital cross-connect systems
DECT (Digital European Cordless Telephone) base stations
CSU/DSU equipment

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
XRT81L27 数据资料DataSheet下载:pdf	Rev.V2	2 页