AM79C940 datasheet(86/122 Pages) AMD

86 / 122 page

AMD

Am79C940

XMT

Filter

RCV

Filter

ANLG GND

ANLG +5 V

AVSS

AVDD

0.1

µF

Filter &

Transformer

Module

Note 1

Note 2

Am79C940

TXP+

TXD–

TXP–

TXD+

RXD+

RXD–

DGTL GND

0.1

µF

LNKST

LINK OK

DGTL +5 V

RXPOL

RX POL OK

1.21K

Ω

100

Ω

61.9

Ω

422

Ω

61.9

Ω

422

Ω

DO–

DI+

DI–

CI+

CI–

DO+

Pulse

Transformer

Note 3

40.2

Ω

Optional

ANLG GND

0.1

µF

0.1

µF

AUI

Connector

RJ45

Connector

40.2

Ω

40.2

Ω

40.2

Ω

TD+

TD–

RD+

RD–

16235C-18

Notes

1. Compatible filter modules, with a brief description of package type and features are included in the following section.

2. The resistor values are recommended for general purpose use and should allow compliance to the 10BASE-T specification

for template fit and jitter performance. However, the overall performance of the transmitter is also affected by the transmit filter

configuration. All resistors are ± 1%.

3. Compatible AUI transformer modules, with a brief description of package type and features are included in the

following section.

1:1

10BASE-T and AUI Implementation of Am79C940

AM79C940 Datasheet(PDF) 86 Page - Advanced Micro Devices

AM79C940 Datasheet(HTML) 86 Page - Advanced Micro Devices

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