XRT59L91ES Exar, XRT59L91ES Datasheet - Page 11

• Manufacturer Part Number: XRT59L91ES
• Description: Peripheral Drivers & Components - PCIs 1 CH E1 AFE
• Manufacturer: Exar

Specifications of XRT59L91ES

• Product Category: Peripheral Drivers & Components - PCIs
• Rohs: yes

With input signal as described above, the XRT59L91
device will take each mark (which is provided to it via the
“Transmit Input Interface” block, and will generate a
pulse that complies with the pulse template, presented
in Figure 4 (when measured on the secondary-side of
the Transmit Output Transformer).
TxLineClk
TxPOS
TxNEG
Rev. 1.0.0
Figure 5. Illustration of how to interface the Transmit Section of the
2
3
1
XRT59L91
TxPOS
TxNEG
TxClk
U1
XRT59L91 device to the Line (for “75 ” Applications)
TRing
TTIP
13
15
11
1.2
ITU-T G.703 specifies that the E1 line signal can be
transmitted over coaxial cable and terminated with 75
or transmitted over twisted-pair and terminated with
120 .
In both applications (e.g., 75
advised to interface the Transmitter to the Line, in the
manner as depicted in Figures 5 and 6, respectively.
1
1
Interfacing the Transmit Section of the
XRT59L91 device to the Line
R2
9.1
9.1
R1
2
2
1
4
XRT59L91
1:2
PE-65835
or 120 ), the user is
5
8
1
J1
BNC