ELLXT971ABE.A4 Intel, ELLXT971ABE.A4 Datasheet - Page 63

• Manufacturer Part Number: ELLXT971ABE.A4
• Description: IC TRANS 3.3V ETHERNET 64-BGA
• Manufacturer: Intel
• Type: PHY Transceiverr

Specifications of ELLXT971ABE.A4

• Number Of Drivers/receivers: 1/1
• Protocol: IEEE 802
• Voltage - Supply: 3.14 V ~ 3.45 V
• Mounting Type: Surface Mount
• Package / Case: 64-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 870479

Datasheet
Document Number: 249414-003
Revision Date: June 18, 2004
Figure 22. Intel
Figure 22
connections crossed over for a Switch configuration.
Figure 23
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 transceiver.
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. For a standard NIC RJ-45 setup,
LXT971A Transceiver Typical Twisted-Pair Interface - Switch
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.
see
Intel® LXT971A
shows the LXT971A Transceiver in a typical twisted-pair interface, with the RJ-45
shows the LXT971A Transceiver in a typical twisted-pair interface, with the RJ-45
Transceiver
Figure 23 on page
SD/TP_L
TPFON
TPFOP
TPFIN
TPFIP
VCCA
GND
64.
Intel
0.1μF
270 pF 5%
270 pF 5%
0.1μF
2
®
50Ω 1%
50Ω 1%
0.01 μF
LXT971A Single-Port 10/100 Mbps PHY Transceiver
.01μF
1
1:1
1:1
3
*
*
50 Ω
50 Ω
* = 0.001 μF / 2.0 kV
B3396-01
50 Ω
50 Ω
50 Ω
50 Ω
RJ-45
4
1
2
3
4
5
6
7
8
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