10/100/1000BASE-T
VOICE IP MAGNETICS MODULES
Networking Components
1
LF941
ELECTRICAL CHARACTERISTICS @25oC
Rise Time & Fall Time @5.0ns (Max), Hi-Pot Test @60Sec, 1500Vrms, OCL @8mA DC Bias 350uH (Min)
Insertion
Loss
(dB Max)
1-100
Return Loss
(dB Min)
Cross Talk
(dB Min)
Diff. To Com.
Mode Rejection
(dB Min)
Turns Ratio
TX/RX
(
5%)
1
Model
60
100
100
1-30
40
50
60-80
100
30
30
60
MHz
MHz
MHz
MHz
MHz
LF9411
-1.0
-18 -14.4 -13.1 -12
-10
-40
-35 -30
-40
-35
-30
1:1 / 1:1
MECHANICAL CONSTRUCTION
SCHEMATICS
A
1CT:1CT
75
1CT:1CT
1CT:1CT
1
72
19
54
75
75
75
75
2
3
71
70
20
21
53
52
1CT:1CT
75
B
LF9411
4
5
22
23
69
68
51
50
1CT:1CT
75
1CT:1CT
1CT:1CT
DATE CODE
6
7
67
66
24
25
49
48
1CT:1CT
75
65
64
26
27
47
46
8
9
C
D
1000pF
2KV
1000pF
2KV
1CT:1CT
75
1CT:1CT
1CT:1CT
E
F
10
63
28
45
75
75
75
75
H
G
I
J
29
30
44
43
K
11
12
62
61
1CT:1CT
75
1.78
72*0.60
13
14
60
59
31
32
42
41
UNIT : mm / inch
1CT:1CT
75
1CT:1CT
1CT:1CT
37
A = 34.50 0.254 / 1.358 0.010
B = 19.00 0.254 / 0.748 0.010
C = 13.00 0.254 / 0.512 0.010
D = 3.00 0.254 / 0.118 0.010
E = 0.89 0.05 / 0.035 0.002
F = 0.50 0.05 / 0.020 0.002
G = 15.62 0.254 / 0.615 0.010
H = 10.54 0.254 / 0.415 0.010
I = 0.35 0.05 / 0.014 0.002
J = 1.78 / 0.070 (TYP)
72
15
16
58
57
33
34
40
39
1CT:1CT
75
10.5415.62
2
1
56
55
38
37
17
18
35
36
0.89
1000pF
2KV
1000pF
2KV
31.15
SUGGESTED PCB LAYOUT
K = 31.15 / 1.226 (TYP)
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.delta.com/products/networking