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參數(shù)資料
| 型號(hào)： | XRT82D20IW |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | SINGLE CHANNEL E1 LINE INTERFACE UNIT |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PDSO28 |
| 封裝： | 0.300 INCH, SOJ-28 |
| 文件頁數(shù)： | 16/49頁 |
| 文件大?。?/td> | 735K |
| 代理商： | XRT82D20IW |
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XRT82L34
QUAD T1/E1/J1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.1.0
á
14
this mode the data/signals applied to the TxClk,
TPOS/TDAT and TNEG input pins are ignored, while
RxClk and received data will continue to be available
at their respective output pins. Simultaneously setting
RLOOP and ALOOP active is not allowed (see Loop-
Back Mode in Figure 4 & Figure 5). Remote loop-
back has priority over TAOS.
DIGITAL LOCAL LOOP-BACK (DLOOP) MODE
The Digital Local Loop-Back mode allows the trans-
mit clock and data to be looped back to the corre-
sponding receiver output pins through the encoder/
decoder and the jitter attenuator. In this mode, the re-
ceive line signal is ignored, but the transmit data will
be sent to the line uninterrupted. This loop back fea-
ture allows users to configure the line interface as a
pure jitter attenuator. (see Loop-Back Mode in
Figure 6 & Figure 7).
N
OTE
:
Digital Local Loop-Back is not supported in Hard-
ware Mode.
ANALOG LOCAL LOOP-BACK (ALOOP) MODE
With Analog Local Loop-Back activated, the transmit
data at TTIP and TRING are looped-back to the ana-
log input of the receiver. External inputs at RTIP/
RRING in this mode are ignored while valid transmit
data continues to be sent to the line. Analog Loop-
Back exercises most of the functional blocks of the
line interface (see Loop-Back Mode in Figure 8 &
Figure 9).
F
IGURE
4. R
EMOTE
L
OOP
-B
ACK
WITH
JITTER
ATTENUATOR
SELECTED
IN
RECEIVE
PATH
Tx
Decoder
Timing
Control
Rx
Clock &
Data
Recovery
JA
TxPOS
TxNEG
TxClk
RxClk
RxPOS
RxNEG
Encoder
TTIP
TRing
RTIP
RRing
F
IGURE
5. R
EMOTE
L
OOP
-B
ACK
WITH
JITTER
ATTENUATOR
SELECTED
IN
TRANSMIT
PATH
Tx
Decoder
Timing
Control
Rx
Clock &
Data
Recovery
JA
TxPOS
TxNEG
TxClk
RxClk
RxPOS
RxNEG
Encoder
TTIP
TRing
RTIP
RRing
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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(dòng)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(dòng)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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