參數(shù)資料
型號: XRT83VL38IB-F
廠商: Exar Corporation
文件頁數(shù): 37/95頁
文件大?。?/td> 0K
描述: IC LIU SH T1/E1/J1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝: 84
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 8/8
規(guī)程: E1
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 225-BGA
供應(yīng)商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
其它名稱: 1016-1481
XRT83VL38IB-F-ND
XRT83VL38
38
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.0.1
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
simplified block diagram of the receive section for a 1:1 and 1+1 redundancy scheme.
NOTE: For simplification, the over voltage protection circuitry was omitted.
FIGURE 16. SIMPLIFIED BLOCK DIAGRAM OF THE TRANSMIT SECTION FOR 1:1 & 1+1 REDUNDANCY
FIGURE 17. SIMPLIFIED BLOCK DIAGRAM - RECEIVE SECTION FOR 1:1 AND 1+1 REDUNDANCY
T1/E1 Line
Backplane Interface
Primary Card
Backup Card
XRT83VL38
Tx
Line Interface Card
0.68
F
0.68
F
TxTSEL=1, Internal
1:2
RxTSEL=0, External
RxTSEL=1, Internal
Backplane Interface
Primary Card
Backup Card
XRT83VL38
Rx
Line Interface Card
T1/E1 Line
Rx
1:1
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