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
文件頁數(shù): 21/32頁
文件大?。?/td> 377K
代理商: XRT59L921
XRT59L921
19
REV. 1.2.1
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
N
OTES
:
1.
Figure 7
and
Figure 8
, indicate that for both 75
and 120
applications, the user should connect a 9.1
resistor, in series, between the TTIP/TRing outputs and the transformers.
Figure 5 and 6, indicate that the user should use a 1:2 STEP-UP Transformer.
2.
F
IGURE
7. I
LLUSTRATION
OF
HOW
TO
INTERFACE
THE
T
RANSMIT
S
ECTIONS
OF
THE
XRT59L921
TO
THE
L
INE
(
FOR
75
A
PPLICATIONS
)
F
IGURE
8. I
LLUSTRATION
OF
HOW
TO
INTERFACE
THE
T
RANSMIT
S
ECTIONS
THE
XRT59L921
TO
THE
L
INE
(
FOR
120
A
PPLICATIONS
)
T
RANSMIT
T
RANSFORMER
R
ECOMMENDATIONS
P
ARAMETER
V
ALUE
Turns Ratio
1:2
Primary Inductance
Isolation Voltage
Leakage Inductance
9.1
9.1
TxPOS_n
TxNEG_n
TxClk_n
XRT59L921
TxClk_n
TxPOS_n
TxNEG_n
TTIP_n
TRING_n
1:2
Coaxial cable
9.1
9.1
TxPOS_n
TxNEG_n
TxClk_n
XRT59L921
TxClk_n
TxPOS_n
TxNEG_n
TTIP_n
TRING_n
TRING_Channel_n
TTIP_Channel_n
1:2
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