ML4658

14

* Single Chip Solutions are Available from Magnetic Suppliers.

Magnetics and Filter Suppliers:

Pulse Engineering, Inc. (San Diego)

Valor Electronics, Inc. (San Diego)

Fil-Mag (San Diego)

Figure 12. External MAU

APPLICATION: EXTERNAL MAU

TRANSMIT

FILTER

RECEIVE

FILTER

RJ

45

360

Ω

360

Ω

39

Ω

39

Ω

360

Ω

360

Ω

COL–

COL+

Tx–

Tx+

Rx–

Rx+

CAP0 CAP1

330pF

+5V

200

Ω

200

Ω

2:1

*

BIAS

50

Ω

50

Ω

1:1

TxTP+

TxTP–

RxTP+

RxTP–

RTSET

SQEN

+5V

POLRD

LTF

XMT

RCV

JAB

CLSN

GND

13

2

4

7

8

5

6

+5V

1K

Ω

3.3K

Ω

BIAS R21

R22

220

Ω

R15

510

Ω

D2

D3

D4

D5

D6

D7

4

1

24

14

13

20

12

10

21

22

15

16

C5

18

19

3

U1

2

9

23

8

6

5

11

BIAS

OUT

IN

LM340

GND

+5V

D1

VR1

R1

R2

BIAS

R3

R4

1%

R5

R6

RRSET

R16

62K

Ω, 1%

D8

717

T1

1

9

10

11

12

13

14

15

2

3

4

5

6

7

8

CHASSIS.REF

AUI.CP–

AUI.CP+

AUI.TX–

AUI.TX+

AUI.RX–

AUI.RX+

P1

AUI.PWR–

AUI.PWR+

0.1

µ

C4

C3

3

µ

C1

C2

0.1

µ

3

µ

++

+5V

R13

560

Ω

50pF