參數資料
型號: XRT83L30IV-F
廠商: Exar Corporation
文件頁數: 27/78頁
文件大?。?/td> 0K
描述: IC LIU LH/SH T1/E1 SGL 64TQFP
標準包裝: 160
類型: 線路接口裝置(LIU)
驅動器/接收器數: 1/1
規(guī)程: T1,E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應商設備封裝: 64-TQFP(10x10)
包裝: 托盤
其它名稱: 1016-1633
XRT83L30IV-F-ND
XRT83L30
30
REV. 1.0.1
SINGLE-CHANNEL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
Table 11 summarizes the transmit terminations.
REDUNDANCY APPLICATIONS
Telecommunication system design requires signal integrity and reliability. When a T1/E1 primary line card has
a failure, it must be swapped with a backup line card while maintaining connectivity to a backplane without
losing data. System designers can achieve this by implementing common redundancy schemes with the
XRT83L30 Line Interface Unit (LIU). The XRT83L30 offers features that are tailored to redundancy applications
while reducing the number of components and providing system designers with solid reference designs. These
features allow system designers to implement redundancy applications that ensure reliability. The Internal
Impedance mode eliminates the need for external relays when using the 1:1 and 1+1 redundancy schemes.
TABLE 10: TRANSMIT TERMINATION CONTROL
TRATIO
TURNS RATIO
0
1:2
1
1:2.45
TABLE 11: TRANSMIT TERMINATIONS
TERSEL1
TERSEL0
TXTSEL
TRATIO
Rint
n
Rext
Cext
0=EXTERNAL
SET BY
CONTROL
BITS
n, Rext, AND Cext ARE SUGGESTED
SETTINGS
1=INTERNAL
T1
100
0
2.45
3.1
0
1
0
2
3.1
0
1
x
25
2
0
0.68
F
J1
110
0
1
0
2.45
3.1
0
1
0
1
0
2
3.1
0
1
x
27.5
2
0
0.68
F
E1
75
1
0
2.45
6.2
0
1
0
1
0
2
9.1
0
1
0
1
x
18.75
2
0
0.68
F
E1
120
1
0
2.45
6.2
0
1
0
1
0
2
9.1
0
1
x
30
2
0
0.68
F
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