AR9271 查看數據表（PDF） - Unspecified

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AR9271

Single-Chip 1x1 MAC/BB/Radio/PA/LNA with USB Interface for 802.11n 2.4 GHz WLANs

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1. Pin Descriptions

This section contains a package pinout (see

Figure 1-1 and Table 1-1) and a tabular listing

of the signal descriptions.

The following nomenclature is used for signal

names:

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

The following nomenclature is used for signal

types:

I

Digital input signal

I/O A digital bidirectional signal

IA Analog input signal

IA/OA Analog bidirectional 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

O A digital output signal

OA An analog output signal

OD A digital output signal with open

drain

P

A power or ground signal

Atheros Communications, Inc.

COMPANY CONFIDENTIAL

AR9271 Single-Chip 1x1 MAC/BB/Radio for 802.11n WLANs • 9

November 2011 • 9

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