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參數(shù)資料
| 型號： | XRT82D20IW |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 18/27頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC LIU EI SGL 28SOJ |
| 標準包裝： | 27 |
| 類型： | 線路接口裝置（LIU） |
| 驅(qū)動器/接收器數(shù)： | 1/1 |
| 規(guī)程： | E1 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-BSOJ |
| 供應(yīng)商設(shè)備封裝： | 28-SOJ |
| 包裝： | 管件 |
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XRT82D20
24
REV. 1.0.8
SINGLE CHANNEL E1 LINE INTERFACE UNIT
2.2
The Remote Loop Back Mode
When the XRT82D20 is configured to operate in the Remote Loop-Back Mode, the XRT82D20 will ignore any
signals that are input to the TPOS and TNEG input pins. The XRT82D20 will receive the incoming line signals,
via the RTIP and RRing input pins. This data will be processed through the entire Receive Section (within the
XRT82D20) and will output to the Receive Terminal Equipment via the RPOS and RNEG output pins.
Additionally, this data will also be internally looped back to the Transmit Input Interface block within the
Transmit Section.
At this point, this data will be routed through the remainder of the Transmit Section of the
XRT82D20 and will be transmitted out onto the line via the TTIP and TRing output pins.
Figure 19, illustrates the path that the data takes (within the XRT82D20) when the chip is configured to
operate in the Remote Loop-Back Mode.
NOTE: During Remote Loop-Back operation, any data which is input via the RTIP and RRING input pins, will also be output
to the Terminal Equipment, via the RPOS and RNEG output pins.
FIGURE 19. ILLUSTRATION OF THE REMOTE LOOP-BACK PATH, WITHIN THE XRT82D20
HDB3
Encoder
Peak
Detector
LOS
Detect
Data
Slicer
Data &
Timing
Recovery
Remote
Loopback
HDB3
Decoder
Tx Pulse
Shaper
MUX
Line
Driver
TClk
TPOS
TNEG
RClk
RPOS
RNEG
TTIP
TRing
RLOS
RTIP
RRing
MClk
Timing
Generator
Jitter Attenuator
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT82D20IW-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Single Ch; 3.3V-5V temp -45 to 85C 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 |
| XRT82D20IW-F | 制造商:Exar Corporation 功能描述:T1/E1 LIU IC |
| XRT82D20IWTR | 功能描述:外圍驅(qū)動器與原件 - PCI Single Ch E1 LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT82D20IWTR-F | 功能描述:外圍驅(qū)動器與原件 - PCI Single Ch E1 LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT82L24 | 制造商:EXAR 制造商全稱:EXAR 功能描述:QUAD E1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
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