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Intel
LXT972M Single-Port 10/100 Mbps PHY Transceiver
Datasheet
Document Number: 302875-005
Revision Date: 27-Oct-2005
57
6.0
Application Information
6.1
Magnetics Information
The LXT972M Transceiver requires a 1:1 ratio for both the receive and transmit transformers. The
transformer isolation voltage should be rated at 2 kV to protect the circuitry from static voltages
across the connectors and cables. For transformer/magnetics requirements, see
Table 19
.
Note:
Before committing to a specific component, contact the manufacturer for current product
specifications and validate the magnetics for the specific application.
6.2
Typical Twisted-Pair Interface
Table 20
provides a comparison of the RJ-45 connections for NIC and Switch applications in a
typical twisted-pair interface setting.
Table 19. Magnetics Requirements
Parameter
Min
Nom
Max
Units
Test Condition
Rx turns ratio
–
1 : 1
–
–
–
Tx turns ratio
–
1 : 1
–
–
–
Insertion loss
0.0
0.6
1.1
dB
–
Primary inductance
350
–
–
μ
H
–
Transformer isolation
–
1.5
–
kV
–
Differential to common mode rejection
40
–
–
dB
0.1 to 60 MHz
35
–
–
dB
60 to 100 MHz
Return Loss
-16
–
–
dB
30 MHz
-10
–
–
dB
80 MHz
Table 20. I/O Pin Comparison of NIC and Switch RJ-45 Setups
Symbol
RJ-45
Switch
NIC
TPIP
1
3
TPIN
2
6
TPOP
3
1
TPON
6
2
相關PDF資料 |
PDF描述 |
|---|---|
| DJLXT972MLEA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNAA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNCA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNEA4 | Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MPAA4 | Single-Port 10/100 Mbps PHY Transceiver |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| DJLXT972MLEA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNAA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNCA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MNEA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
| DJLXT972MPAA4 | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Single-Port 10/100 Mbps PHY Transceiver |
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