WJLXT972MLC.A4 S L7U9 Intel, WJLXT972MLC.A4 S L7U9 Datasheet - Page 59
WJLXT972MLC.A4 S L7U9
Manufacturer Part Number
WJLXT972MLC.A4 S L7U9
Description
Manufacturer
Intel
Datasheet
1.WJLXT972MLC.A4_S_L7U9.pdf
(92 pages)
Specifications of WJLXT972MLC.A4 S L7U9
Lead Free Status / RoHS Status
Compliant
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Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
Figure 20. Intel
Figure 20
connections configured for a NIC application.
1. Center tap current may be supplied from 3.3 V VCCA as shown. Additional power savings may be
2. The 100 Ω transmit load termination resistor typically required is integrated in the LXT972M
3. Magnetics without a receive pair center tap do not require a 2 kV termination.
4. RJ-45 connections shown for standard NIC. TX/RX crossover may be required for repeater and
®
Transceiver
realized by supplying the center tap from a 2.5 V current source. A separate ferrite bead (rated at 50
mA) should be used to supply center-tap current.
Transceiver.
switch applications.
LXT972M
LXT972M Transceiver Typical Twisted-Pair Interface - NIC
shows the LXT972M Transceiver in a typical twisted-pair interface, with the RJ-45
Intel®
SD/TP_L
VCCA
TPON
TPOP
TPIP
TPIN
GND
0.1μF
Intel
270 pF 5%
270 pF 5%
0.1μF
2
50Ω 1%
50Ω 1%
0.01 μF
®
LXT972M Single-Port 10/100 Mbps PHY Transceiver
.01μF
1
1:1
1:1
3
*
*
50 Ω
50 Ω
* = 0.001 μF / 2.0 kV
B3513-01
50 Ω
50 Ω
50 Ω
50 Ω
RJ-45
4
8
7
6
5
4
3
2
1
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