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LPF
ANALOG INTERFACE MODULE
RJ-45
CONNECTOR
UTP
TD-
TD+
RD+
RD-
16
LPF
LPF
LPF
RXI+
RXI-
15 14
13 12
11 10
9
12
3
4
5
6
7
8
2
1
3
6
R1
R2
R3
R4
R7
R6
R5
TWISTED
PAIR
TRANSMIT
OUTPUTS
Typical Application Circuit
E2001, E2003, E2004, E2007
Schematics
E2001, E2003, E2004, E2007
9
100
Ω
16
14
R6
R7
15
12
UTP SIDE
CHIP SIDE
RECEIVE CHANNEL
8
6
LOW PASS
FILTER
4
3
2
1
R1
R2
R4
R5
5
UTP SIDE
CHIP SIDE
TRANSMIT CHANNEL
100
Ω
11
LOW PASS
FILTER
LOW PASS
FILTER
LOW PASS
FILTER
R3
1:1
1:1
NOTE 1
Note: Common Mode Choke on transmit channel for E2001, E2003, E2004.
Resistor Values (
Ω)
Part
IC
R1
R2
R3
R4
R5
R6
R7
Number
Manufacturer
E2001
National
348.0
53.6
53.6
348.0
806
49.9
49.9
E2003
AMD
61.9
422.0
61.9
422.0
1,210
49.9
49.9
E2004
LSI
390.0
63.4
390
63.4
N/A
49.9
49.9
E2007
Motorola
39.0
N/A
39
N/A
N/A
49.9
49.9
SURFACE MOUNT 10BASE-T
INTERFACE MODULES
Fully Integrated for Adapter, Hub, and
Motherboard Applications
3
E115.A (9/97)
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