am79c940 Advanced Micro Devices, am79c940 Datasheet - Page 86

• Manufacturer Part Number: am79c940
• Description: Media Access Controller For Ethernet Mace
• Manufacturer: Advanced Micro Devices

86
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
3. Compatible AUI transformer modules, with a brief description of package type and features are included in the
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%.
following section.
AMD
:
ANLG +5 V
Am79C940
AVDD
0.1 F
AVSS
RXPOL
LNKST
RXD+
RXD–
TXD+
Optional
TXP+
TXD–
TXP–
DO+
DO–
10BASE-T and AUI Implementation of Am79C940
DI+
DI–
CI+
CI–
0.1 F
40.2
61.9
422
61.9
ANLG GND
422
ANLG GND
40.2
40.2
LINK OK
0.1 F
Am79C940
Note 2
40.2
0.1 F
1.21K
100
Transformer
Note 3
Pulse
RX POL OK
DGTL GND
Note 1
Filter
Filter
XMT
RCV
Transformer
Module
Filter &
1:1
1:1
Connector
AUI
DGTL +5 V
10
12
3
5
2
9
Connector
TD+
TD–
RD+
RD–
RJ45
1
6
2
3
16235C-18