AR8327-AL1A-R datasheet(390/394 Pages) ETC2

390 / 394 page

390 • AR8327/AR8327N Seven-port Gigabit Ethernet Switch

Atheros Communications, Inc.

390 • June 2011

COMPANY CONFIDENTIAL

Table 4-10.

MDIO Timing

4.6 Typical Power Consumption Parameters

The following conditions apply to the typical

characteristics unless otherwise specified:

DVDD/AVDD = 1.1 V

VDD33 = 3.3V

Tamb = 25 °C

Table 4-11 shows the typical power drain on

each of the on-chip power supply domains as a

function of the AR8327’s operating mode.

Symbol

Parameter

Min

Typ

Max

Unit

tmdc

MDC Period

100

tmdcl

MDC Low Period

tmdch

MDC High Period

tmdsu

MDIO to MDC rising setup time

tmdhold

MDIO to MDC rising hold time

Table 4-11.

Total System Power (1000 Base-T)

Link Type

Link Status

3.3V (mA) 1.1V (mA)

Power

Consumption

(mW)

no link

188.1

1000M

All Ports Active

294

753

1798.5

Two Ports Active

126

376

829.4

Three Ports Active

185

520

1182.5

Four Ports Active

244

627

1494.9

100M

All Ports Active

110

209

592.9

Two Ports Active

129

333.3

Three Ports Active

160

440

Four Ports Active

182

510.4

1000M

All Ports 802.3az Enabled

114

—

376.2

100M

All Ports 802.3az Enabled

100

—

330

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