LAN
10/100 BASE-TX DUAL PORT MODULE
7248
• Designed to support two RJ-45 connectors
• Compliant with IEEE 802.3u and ANSI X3.263 standards
MECHANICAL AND SCHEMATIC
(All dimensions in inches)
SUGGESTED PAD LAYOUT
0.690
+TD1 1
SCHEMATIC
24 +TX1
24 X .020
0.550
TDCT1 2
23 TXCT1
-TD1 3
7248
FD/C
1:1
2
-TX1
0.480
0.500
0.650
+RD1 4
21 +RX1
RDCT1 5
20 RXCT1
11 X .050
-RD1 6
1:1
19 -RX1
11 X 0.050
24 X 0.030
+TD2 7
18 +TX2
0.5508
TDCT2 8
17 TXCT2
-TD2 9
1:1
16 -TX2
0.010
0.30 MAX
+RD2 10
15 +RX2
RDCT2 11
14 RXCT2
24 X 0.045
-RD2 12
1:1
13 -RX2
ELECTRICAL SPECIFICATION @ 25˚C
Insertion
Loss
(dB TYP)
0.1-100MHz
23/10/01
Part
Number
Return Loss
(dB MIN)
2-30MHz
-18
40 MHz
-16
50 MHz
-14
60-80MHz
-12
Differential to Common
Mode Rejection
(dB TYP)
1-60MHz
-45
60-200MHz
-35
1MHz
-60
Crosstalk
(dB TYP)
30MHz
-45
60MHz
-40
100MHz
-35
7248
7248
-1.2
ISSUE: A
An ISO 9001 Registered Company
229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3
Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com
FILTRAN [ FILTRAN LTD ]
