WJLXT972ALC.A4 S E001 Intel, WJLXT972ALC.A4 S E001 Datasheet - Page 60

• Manufacturer Part Number: WJLXT972ALC.A4 S E001
• Manufacturer: Intel

Specifications of WJLXT972ALC.A4 S E001

• Lead Free Status / Rohs Status: Compliant

Intel
60
Figure 20. Intel
®
LXT972A Single-Port 10/100 Mbps PHY Transceiver
Figure 20
connections crossed over for a Switch configuration.
Transceiver
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 LXT972A
3. Magnetics without a receive pair center-tap do not require a 2 kV termination.
4. RJ-45 connections shown are for a standard switch application.
®
LXT972A
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.
LXT972A Transceiver Typical Twisted-Pair Interface - Switch
Intel®
shows the LXT972A Transceiver in a typical twisted-pair interface, with the RJ-45
TPON
VCCA
TPOP
TPIN
TPIP
GND
0.1μF
270 pF 5%
270 pF 5%
0.1μF
2
50Ω 1%
50Ω 1%
0.01 μF
.01μF
1
1:1
1:1
3
*
*
50 Ω
50 Ω
* = 0.001 μF / 2.0 kV
50 Ω
50 Ω
50 Ω
50 Ω
Document Number: 249186-004
Revision Date: 25-Oct-2005
B3397-02
RJ-45
1
2
3
4
5
6
7
8
4
Datasheet