參數(shù)資料
型號(hào): XRT59L921
廠商: Exar Corporation
英文描述: TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
中文描述: 二十一條路E1線路接口單元
文件頁(yè)數(shù): 25/32頁(yè)
文件大?。?/td> 377K
代理商: XRT59L921
XRT59L921
23
REV. 1.2.1
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
TRANSFORMER RECOMENDATION
2.2
Interfacing the XRT59L921 Receive Section to the Line (Capacitive Coupling)
Figure 11
and
Figure 12
are recommended methods to Interface the the receive sections of the XRT59L921to
the line.
R
ECEIVE
T
RANSFORMER
R
ECOMMENDATIONS
P
ARAMETER
V
ALUE
Turns Ratio
1:1
Primary Inductance
Isolation Voltage
Leakage Inductance
F
IGURE
11. R
ECOMMENDED
75
C
APACITIVE
C
OUPLING
A
PPLICATION
F
IGURE
12. R
ECOMMENDED
120
T
WISTED
P
AIR
C
APACITIVE
C
OUPLING
A
PPLICATION
150
RxPOS_n
RxNEG_n
LOS_n
XRT59L921
LOS_n
RxPOS_n
RxNEG_n
RTIP_n
RRING_n
0.1
μ
F
0.1
μ
F
150
Coaxial Cable
240
RxPOS_n
RxNEG_n
LOS_n
XRT59L921
LOS_n
RxPOS_n
RxNEG_n
RTIP_n
RRING_n
0.1
μ
F
0.1
μ
F
240
120
Twisted
Pair Cable
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