參數(shù)資料
型號(hào): XRT59L921IB
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
中文描述: DATACOM, PCM TRANSCEIVER, PBGA316
封裝: 21 X 21 MM, STBGA-316
文件頁(yè)數(shù): 24/32頁(yè)
文件大小: 377K
代理商: XRT59L921IB
XRT59L921
22
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
REV. 1.2.1
N
OTE
:
Figure 9
and
Figure 10
indicate that the user should use a 1:1 transformer, when interfacing the receiver to the
line.
F
IGURE
10. R
ECOMMENDED
S
CHEMATIC
FOR
I
NTERFACING
THE
R
ECEIVE
S
ECTIONS
OF
THE
XRT59L921
TO
THE
L
INE
FOR
120
A
PPLICATIONS
(T
RANSFORMER
-C
OUPLING
)
120
RxPOS_n
RxNEG_n
LOS_n
XRT59L921
LOS_n
RxPOS_n
RxNEG_n
RTIP_n
RRING_n
1:1
RTIP_n
RRing_n
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