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參數(shù)資料
| 型號： | XRT83L34IV |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| 中文描述： | DATACOM, PCM TRANSCEIVER, PQFP128 |
| 封裝： | 14 X 20 MM, 1.40 MM HEIGHT, TQFP-128 |
| 文件頁數(shù)： | 37/82頁 |
| 文件大?。?/td> | 447K |
| 代理商： | XRT83L34IV |
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XRT83L34
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.3.4
PRELIMINARY
34
RECEIVE 1:1 & 1+1 REDUNDANCY
For 1:1 and 1+1 redundancy, the receivers on the primary card should be programmed for Internal Impedance
mode. The receivers on the backup card should be programmed for External Impedance mode. Since there is
no external resistor in the circuit, the receivers on the backup card will be high impedance. This key design
feature eliminates the need for relays and provides one bill of materials for all interface modes of operation.
Select the impedance for the desired mode of operation, T1/E1/J1. To swap the primary card, set the backup
card to Internal Impedance mode, then the primary card to External Impedance mode. See
Figure 17
for a
simplified block diagram of the receive section for a 1:1 and 1+1 redundancy scheme.
N
OTE
:
For simplification, the over voltage protection circuitry was omitted.
F
IGURE
16. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
T
RANSMIT
S
ECTION
FOR
1:1 & 1+1 R
EDUNDANCY
F
IGURE
17. S
IMPLIFIED
B
LOCK
D
IAGRAM
- R
ECEIVE
S
ECTION
FOR
1:1
AND
1+1 R
EDUNDANCY
T1/E1 Line
Backplane Interface
Primary Card
Backup Card
XRT83L34
XRT83L34
Tx
Tx
Line Interface Card
0.68
μ
F
0.68
μ
F
TxTSEL=1, Internal
TxTSEL=1, Internal
1:2 or 1:2.45
RxTSEL=0, External
RxTSEL=1, Internal
Backplane Interface
Primary Card
Backup Card
XRT83L34
XRT83L34
Rx
Line Interface Card
T1/E1 Line
Rx
1:1
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT83L34IV-F | 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 |
| XRT83L34IVTR | 功能描述:外圍驅(qū)動器與原件 - PCI 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 |
| XRT83L34IVTR-F | 功能描述:外圍驅(qū)動器與原件 - PCI 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 |
| XRT83L38 | 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
| XRT83L38_07 | 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR |
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