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參數(shù)資料
| 型號： | LXT971A |
| 廠商： | Intel Corp. |
| 英文描述： | 3.3V Dual-Speed Fast Ethernet PHY Transceiver |
| 中文描述： | 3.3雙速快速以太網(wǎng)物理層收發(fā)器 |
| 文件頁數(shù)： | 48/90頁 |
| 文件大?。?/td> | 568K |
| 代理商： | LXT971A |
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LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
48
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
4.0
Application Information
4.1
Magnetics Information
The LXT971A 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. Refer to
Table 15
for transformer requirements.
A cross-reference list of magnetic manufacturers and part numbers is available in Magnetic
Manufacturers for Networking Product Applications (document number 248991) and is found on
the Intel web site (www.Intel.com). Before committing to a specific component, contact the
manufacturer for current product specifications and validate the magnetics for the specific
application.
4.2
Typical Twisted-Pair Interface
Table 16
provides a comparison of the RJ-45 connections for NIC and Switch applications in a
typical twisted-pair interface setting.
Figure 22 on page 49
shows a typical twisted-pair interface with the RJ-45 connections crossed
over for a Switch configuration.
Figure 23 on page 50
provides a typical twisted-pair interface with
the RJ-45 connections configured for a NIC application.
Table 15. 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
.1 to 60 MHz
35
–
–
dB
60 to 100 MHz
Return Loss
-16
–
–
dB
30 MHz
-10
–
–
dB
80 MHz
Table 16. 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(guān)PDF資料 |
PDF描述 |
|---|---|
| LXT972A | 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet |
| LXT972ALC | 3.3V Dual-Speed Fast Ethernet Transceiver Datasheet |
| LXT972M | Single-Port 10/100 Mbps PHY Transceiver |
| LXT9763 | Fast Ethernet 10/100 Hex Transceiver with Full MII |
| LXT9763HC | LAN TRANSCEIVER|HEX|QFP|208PIN|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LXT971ABC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN TRANSCEIVER|SINGLE|CMOS|BGA|64PIN|PLASTIC |
| LXT971ABE | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3.3V Dual-Speed Fast Ethernet PHY Transceiver |
| LXT971ALC | 制造商:Intel 功能描述:LAN Transceiver, Single, 64 Pin, Plastic, QFP 制造商:Intellon Corporation 功能描述:LAN Transceiver, Single, 64 Pin, Plastic, QFP 制造商:Level One 功能描述:LAN Transceiver, Single, 64 Pin, Plastic, QFP |
| LXT971ALE | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:3.3V Dual-Speed Fast Ethernet PHY Transceiver |
| LXT971LC | 制造商:Intel 功能描述: |
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