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LF8279 Datasheet Preview

LF8279 Datasheet

FAST ETHERNET 10BASE-T/100BASE-TX TRANSFORMER

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FAST ETHERNET 10BASE-T/100BASE-TX
TRANSFORMER MODULES
Networking Components
LF8271
ELECTRICAL CHARACTERISTICS @25oC
Rise Time & Fall Time @5.0ns (Max), Hi-Pot Test @60Sec, 1500Vrms, OCL @8mA DC Bias 350uH (Min)
Model
Insertion
Loss
(dB Max)
1~100
MHz
Return Loss
(dB Min)
2~30 40 50 60~80
MHz
Cross Talk
(dB Min)
1 30 60 100
MHz
Com. To Com.
Rejection Ratio
(dB Min)
1~60 60~100
MHz
Diff. To Com.
Mode Rejection
(dB Min)
1~60 60~100
MHz
Turns Ratio
TX/RX
( 5%)
1
MHz
LF8271
LF8279
-1.0 -18 -17 -14.5 -12 -65 -55 -45 -35 -40 -30 -40 -30
-1.0 -18 -17 -14.5 -12 -65 -55 -45 -35 -40 -30 -40 -30
1:1 / 1:1
1:1 / 1:1
MECHANICAL CONSTRUCTION
A
LF8271
B
DATE CODE
D
FG
H
C
UNIT : mm / inch
A = 20.30 0.254 / 0.799 0.010
B = 10.00 0.254 / 0.394 0.010
C = 5.50 0.254 / 0.217 0.010
D = 3.20 0.30 / 0.126 0.012
E = 1.50 / 0.059 (REF)
F = 2.54 / 0.100 (TYP)
G = 0.50 0.127 / 0.020 0.005
H = 17.78 / 0.700 (TYP)
I = 7.62 / 0.300 (TYP)
I
SCHEMATICS
LF8271
1
RX
2
3
15
TX 14
16
LF8279
1
RX
2
3
15
TX 14
16
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG) 252, SAN YING ROAD, KUEI SAN INDUSTRIAL ZONE, TAOYUAN SHIEN, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
Http://www.deltaww.com/products/networking
A-17
7
5
6
11
12
10
7
5
6
11
10
12
Free Datasheet http://www.datasheet4u.com/


Part Number LF8279
Description FAST ETHERNET 10BASE-T/100BASE-TX TRANSFORMER
Maker Delta
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LF8279 Datasheet PDF






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