MKG-16487 Ver. 5.0

19

Qualcomm Atheros, Inc.

MAY CONTAIN U.S. AND INTERNATIONAL EXPORT CONTROLLED INFORMATION

5

Pin Assignments and Descriptions

Table 5-1 shows the PCB footprint and pin assignments (bottom view of the chip) of the AR4100.

Table 5-2 and Table 5-3 show pin assignments and pin definitions.

The following nomenclature is used for signal names:

The following nomenclature is used for signal types:

NC

No connection should be made to this pin

_L

At the end of the signal name, indicates active low signals

P

At the end of the signal name, indicates the positive side of a differential signal

N

At the end of the signal name indicates the negative side of a differential signal

IA

Analog input signal

I

Digital input signal

IH

Input signals with weak internal pull-up, to prevent signals from floating when left open

IL

Input signals with weak internal pull-down, to prevent signals from floating when left

open

I/O

A digital bidirectional signal

OA

An analog output signal

O

A digital output signal

P

A power or ground signal