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3

E115.E (5/09)

SURFACE MOUNT 10BASE-T

INTERFACE MODULES

Fully Integrated for Adapter, Hub, and

Motherboard Applications

Resistor Values (

)

Part

IC

R1

R2

R3

R4

R5

R6

R7

Number

Manufacturer

E2001QNL

National

348.0

53.6

53.6

348.0

806

49.9

49.9

E2003QNL

AMD

61.9

422.0

61.9

422.0

1,210

49.9

49.9

E2007QNL

Motorola

39.0

—

39

—

—

49.9

49.9

LOW PASS

FILTER

5

8

6

LOW PASS

FILTER

R5

100 W

4

3

2

1

TRANSMIT CHANNEL

CHIP SIDE

UTP SIDE

R1

R2

R3

R4

1:1

NOTE: Common Mode Choke on transmit channel for E2001QNL and E2003QNL.

LOW PASS

FILTER

16

14

12

9

11

LOW PASS

FILTER

15

R6

R7

RECEIVE CHANNEL

CHIP SIDE

UTP SIDE

1:1

100 W

NOTE 1

Schematic

E2001QNL, E2003QNL, E2007QNL

Typical Application Circuit

E2001QNL, E2003QNL, E2007QNL

R1 R2

R3

R4

LPF

ANALOG INTERFACE MODULE

RJ-45

CONNECTOR

UTP

TD-

TD+

RD+

RD-

TWISTED

PAIR

TRANSMIT

OUTPUTS

16

LPF

LPF

LPF

RXI+

RXI-

14

13 12

11

10

9

13

5

6

7

8

2

1

3

6

.01µF

24

R5

R7 R6

15

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