10/100/1000BASE-T
TRANSFORMER MODULES
Networking Components
LF9231
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)
Turns Ratio
TX/RX
Model
(
5%)
100
1-30
40
50
MHz
60-80
100
30
60
100
MHz
MHz
MHz
KHz
LF9231
-1.0
-30
-21.5
-20
-16
-14
-45
-40
-35
1:1 / 1:1
MECHANICAL CONSTRUCTION
SCHEMATICS
7
9
8
1
3
2
A
12
10
11
6
4
5
B
LF9231
19
21
20
13
15
14
DATE CODE
24
22
23
18
16
17
D
C
E
APPLICATION CIRCUITS
LF9231
1
3
7
TXIP_A
J1
47.5 OHM
PIN 1
TXVP_A
0.1uF
75 OHM
9
6.35
1.27
UNIT : mm / inch
TXVN_A
TXIN_A
A = 10.00 / 0.394 TYP
B = 10.00 / 0.394 TYP
47.5 OHM
47.5 OHM
2
6
8
J2
J3
1
6
12
TXIP_B
C = 4.10 0.100 / 0.161 0.004
D = 3.90 0.100 / 0.154 0.004
E = 0.20 / 0.008 TYP
IC
TXVP_B
0.1uF
12
75 OHM
10
7
4
5
CIS8201
CIS8204
CIS8211
CIS8221
CIS8224
CIS8234
CIS8244
TXVN_B
TXIN_B
47.5 OHM
47.5 OHM
11
19
13
19
18
24
J6
J4
13
TXIP_C
24- 0.60
TXVP_C
0.1uF
75 OHM
21
15
14
18
TXVN_C
TXIN_C
47.5 OHM
47.5 OHM
20
24
J5
J7
TXIP_D
TXVP_D
0.1uF
75 OHM
22
16
17
TXVN_D
TXIN_D
47.5 OHM
23
J8
1000pF
2KV
RJ-45
Resistors required only
with CIS8201 / CIS8204
CONNECTOR
SHIELD
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