參數(shù)資料
型號： XRT83L314IB-L
廠商： Exar Corporation
文件頁數(shù)： 14/84頁
文件大?。?/td> 0K
描述： IC LIU T1/E1/J1 14CH 304TBGA
標(biāo)準(zhǔn)包裝： 27
類型： 線路接口裝置（LIU）
驅(qū)動器/接收器數(shù)： 14/14
規(guī)程： T1，E1，J1
電源電壓： 3.135 V ~ 3.465 V
安裝類型： 表面貼裝
封裝/外殼： 304-LBGA
供應(yīng)商設(shè)備封裝： 304-TBGA（31x31）
包裝： 托盤
XRT83L314
14-CHANNEL T1/E1/J1 LONG-HAUL/SHORT-HAUL LINE INTERFACE UNIT
REV. 1.0.0
17
2.2
Equalizer Control
The main objective of the equalizer is to amplify an input attenuated signal to a pre-determined amplitude that
is acceptable to the peak detector circuit. Using feedback from the peak detector, the equalizer will gain the
input up to the maximum value specified by the equalizer control bits, in the appropriate channel register,
normalizing the signal.
Once the signal has reached the pre-determined amplitude, the signal is then
processed within the peak detector and slicer circuit. A simplified block diagram of the equalizer and peak
detector is shown in Figure 6.
FIGURE 6. SIMPLIFIED BLOCK DIAGRAM OF THE EQUALIZER AND PEAK DETECTOR
2.3
Cable Loss Indicator
The ability to monitor the cable loss attenuation of the receiver inputs is a valuable feature. The XRT83L314
contains a per channel, read only register for cable loss indication. CLOS[5:0] is a 6-Bit binary word that
reports the value of cable loss in 1dB steps. An example of -25dB cable loss attenuation is shown in Figure 7.
FIGURE 7. SIMPLIFIED BLOCK DIAGRAM OF THE CABLE LOSS INDICATOR
Peak
Detector &
Slicer
Rx Equalizer
Control
RTIP
RRING
-25dB of Cable
Loss
Equalizer and
Peak Detector
CLOS[5:0] = 0x19h
(25dec = 19hex)
-25dB Attenuated
Signal
Read Only
XRT83L314
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT83L34 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
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XRT83L34IV 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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