AWU6608 datasheet(9/13 Pages) ANADIGICS

9 / 13 page

PRELIMINARY DATA SHEET - Rev 1.1

08/2009

AWU6608

35.4 mA Average Current over DG09 Profile

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

0.110

0.120

0.130

0.140

0.150

-60

-50

-40

-30

-20

-10

Antenna Power (dBm)

100

150

200

250

300

350

400

450

500

DG09 PDF

AWU6608 (mA)

Figure 15: PDF and Current

Figure 16: Typical Application Circuit

HELP3

TheAWU6608poweramplifiermoduleisbasedon

ANADIGICS proprietary HELP3™ technology. The

PAisdesignedtooperateupto17dBminthelow

powermode,thuseliminatingtheneedforthreegain

state, while still maintaining low quiescent current

andhighefficiencyinlowandmediumpowerlevels.

ThePAcanstillbeoperatedas3gainstatedevice

if the customer chooses to. The directional “daisy

chainable”couplerisintegratedwithinthePAmodule,

thereforethereisnoneedforexternalcouplers.

TheAWU6608 has an integrated voltage regulator,

which eliminates the need for an external constant

voltage source. The PA is turn on/off is controlled

by VEN pin.A single VMODE control logic (VMODE1) is

neededtooperatethisdevice.

The DG09 power distribution (figure 15) highlights

theneedtoimprovethecurrentconsumptioninlow

andmediumpowerlevel.TheAWU6608isdesigned

tooperateupto17dBminthelowpowermodewith

verylowquiescentcurrent.Currentconsumptionfor

AWU6608isalsoplottedinthefigure5.

AWU6608 requires only two calibration sweeps for

systemcalibration,thussavingcalibrationtime.

Figure16showsoneapplicationexampleonmobile

board.C1andC2areRFbypasscapsandshould

be placed nearby pin 1 and pin 10. Bypass caps

C9andC5maynotbeneeded.Alsoa“T”matching

topology is recommended at PA RFIN and RFOUT

portstoprovidematchingbetweeninputTXFilterand

Duplexer/Isolator.

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