參數(shù)資料
型號(hào)： XRT83SL30IV
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述： DATACOM, PCM TRANSCEIVER, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, TQFP-64
文件頁(yè)數(shù)： 34/76頁(yè)
文件大?。?/td> 376K
代理商： XRT83SL30IV
XRT83SL30
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.0.4
á
PRELIMINARY
31
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 15
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
14. S
IMPLIFIED
B
LOCK
D
IAGRAM
OF
THE
T
RANSMIT
S
ECTION
FOR
1:1 & 1+1 R
EDUNDANCY
F
IGURE
15. 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
XRT83SL30
XRT83SL30
Tx
Tx
Line Interface Card
0.68
μ
F
0.68
μ
F
TxTSEL=1, Internal
TxTSEL=1, Internal
1:2
RxTSEL=0, External
RxTSEL=1, Internal
Backplane Interface
Primary Card
Backup Card
XRT83SL30
XRT83SL30
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
XRT83SL30IV-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
XRT83SL30IVTR-F 功能描述:外圍驅(qū)動(dòng)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
XRT83SL314 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL314_05 制造商:EXAR 制造商全稱:EXAR 功能描述:14-CHANNEL T1/E1/J1 SHORT-HAUL LINE INTERFACE UNIT
XRT83SL314ES 功能描述:LIN 收發(fā)器 14 CHT1/E1 LIUSH RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8
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