AM79C981JC Просмотр технического описания (PDF) - Advanced Micro Devices

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AM79C981JC

Integrated Multiport Repeater Plus™ (IMR+™)

Advanced Micro Devices 

PRELIMINARY

TXD+0–7, TXD–0–7

Transmit Data

Output

10BASE-T port differential drivers (8 ports).

TXP+0–7, TXP–0–7

Transmit Predistortion

Output

10BASE-T transmit waveform predistortion control

differential outputs (8 ports).

X1

Crystal 1

Crystal Connection

The internal clock generator uses a 20 MHz crystal at-

tached to pins X1 and X2. Alternatively, an external

20MHz CMOS clock signal can be used to drive this

pin.

X2

Crystal 2

Crystal Connection

The internal clock generator uses a 20 MHz crystal at-

tached to pins X1 and X2. If an external clock source is

used, this pin should be left unconnected.

1–78

Am79C981

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