XRT59L921IB Exar Corporation, XRT59L921IB Datasheet - Page 29

• Manufacturer Part Number: XRT59L921IB
• Description: 21 CHANNEL E1 LIU
• Manufacturer: Exar Corporation

Specifications of XRT59L921IB

• Lead Free Status / RoHS Status: Contains lead / RoHS Compliant

REV. 1.2.1
APPLICATION INFORMATION
Figure 17
line, under the following conditions.
•
•
F
T
RANSFORMER
IGURE
Receiver is Transformer-coupled to a 75Ω unbalanced line.
Receiver is Transformer-coupled to a 120Ω balanced line.
17. I
and
Loss Of Signal_x
LLUSTRATION ON HOW TO INTERFACE
-
Figure
COUPLED TO A
TxLineClk_x
RxNEG_x
TxPOS_x
TxNEG_x
RxPOS_x
18, provide example schematics on how to interface Channel 1 of the XRT59L921 to the
75Ω
UNBALANCED LINE
TxPOS_x
TxNEG_x
TxLineClk_x
RxPOS_x
RxNEG_x
RxLOS_x
XRT59L921
C
RRING_x
TRING_x
HANNEL
RTIP_x
TTIP_x
)
TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT
27
1 (
OF THE
9.1 Ω
9.1 Ω
XRT59L921)
75 Ω
TO THE
1:2
1:1
L
INE
XRT59L921
(R
ECEIVER IS