参数资料
型号: XRT82D20IW-F
厂商: Exar Corporation
文件页数: 6/27页
文件大小: 0K
描述: IC LIU E1 SGL 28SOJ
标准包装: 27
类型: 线路接口装置(LIU)
驱动器/接收器数: 1/1
规程: E1
电源电压: 3.135 V ~ 3.465 V
安装类型: 表面贴装
封装/外壳: 28-BSOJ
供应商设备封装: 28-SOJ
包装: 管件
其它名称: 1016-1359-5
XRT82D20
13
SINGLE CHANNEL E1 LINE INTERFACE UNIT
REV. 1.0.8
In general, if the XRT82D20 samples a “1” on the TPOS input pin, then the Transmit Section will ultimately
generate a positive polarity pulse via the TTIP and TRing output pins (across a 1:2 transformer). Conversely, if
the XRT82D20 samples a “1” on the TNEG input pin, then the Transmit Section of the device will ultimately
generate a negative polarity pulse via the TTIP and TRing output pins (across a 1:2 transformer).
1.3
The Pulse Shaping Circuit
The purpose of the Transmit Pulse Shaping circuit is to generate Transmit Output pulses that comply with the
ITU-T G.703 Pulse Template Requirements for E1 Applications.
An illustration of the ITU-T G.703 Pulse Template Requirements is presented below in Figure 9.
With input signal as described above, the XRT82D20 will take each mark (which is provided to it via the
Transmit Input Interface block, and will generate a pulse that complies with the pulse template, presented in
Figure 9 (when measured on the secondary side of the Transmit Output Transformer).
FIGURE 8. ILLUSTRATION ON HOW THE XRT82D20 SAMPLES THE DATA ON THE TPOS AND TNEG INPUT PINS
TClk
TPOS
TNEG
tSU
tHO
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XRT82D20IW-F 制造商:Exar Corporation 功能描述:T1/E1 LIU IC
XRT82D20IWTR 功能描述:外围驱动器与原件 - PCI Single Ch E1 LIU RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray
XRT82D20IWTR-F 功能描述:外围驱动器与原件 - PCI Single Ch E1 LIU RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray
XRT82L24 制造商:EXAR 制造商全称:EXAR 功能描述:QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT82L24A 制造商:EXAR 制造商全称:EXAR 功能描述:QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR