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): 32/76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
29
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
XRT83SL30 Line Interface Unit (LIU). The XRT83SL30 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.
T
ABLE
10: T
RANSMIT
T
ERMINATION
C
ONTROL
TRATIO
T
URNS
R
ATIO
0
1:2
1
1:2.45
T
ABLE
11: T
RANSMIT
T
ERMINATIONS
TERSEL1
TERSEL0
TXTSEL
TRATIO
R
int
n
R
ext
C
ext
0=
EXTERNAL
SET
BY
CONTROL
BITS
n, R
ext
,
AND
C
ext
ARE
SUGGESTED
SETTINGS
1=
INTERNAL
T1
100
0
0
0
0
0
2.45
3.1
0
0
0
0
1
0
2
3.1
0
0
0
1
x
100
2
0
0.68
μ
F
J1
110
0
1
0
0
0
2.45
3.1
0
0
1
0
1
0
2
3.1
0
0
1
1
x
110
2
0
0.68
μ
F
E1
75
1
0
0
0
0
2.45
6.2
0
1
0
0
1
0
2
9.1
0
1
0
1
x
75
2
0
0.68
μ
F
E1
120
1
1
0
0
0
2.45
6.2
0
1
1
0
1
0
2
9.1
0
1
1
1
x
120
2
0
0.68
μ
F
相關(guān)PDF資料
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XRT83VSH28 8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
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