AWU6608
HELP3
AWU6608ꢀ requiresꢀ onlyꢀ twoꢀ calibrationꢀ sweepsꢀ forꢀ
systemꢀcalibration,ꢀthusꢀsavingꢀcalibrationꢀtime.ꢀ
TheꢀAWU6608ꢀpowerꢀamplifierꢀmoduleꢀisꢀbasedꢀonꢀ
ANADIGICS proprietary HELP3™ technology. The
PAꢀisꢀdesignedꢀtoꢀoperateꢀupꢀtoꢀ17ꢀdBmꢀinꢀtheꢀlowꢀ
powerꢀmode,ꢀthusꢀeliminatingꢀtheꢀneedꢀforꢀthreeꢀgainꢀ
state,ꢀ whileꢀ stillꢀ maintainingꢀ lowꢀ quiescentꢀ currentꢀ
andꢀhighꢀefficiencyꢀinꢀlowꢀandꢀmediumꢀpowerꢀlevels.ꢀ
TheꢀPAꢀcanꢀstillꢀbeꢀoperatedꢀasꢀ3ꢀgainꢀstateꢀdeviceꢀ
ifꢀ theꢀ customerꢀ choosesꢀ to.ꢀ Theꢀ directionalꢀ “daisyꢀ
chainable”ꢀcouplerꢀisꢀintegratedꢀwithinꢀtheꢀPAꢀmodule,ꢀ
thereforeꢀthereꢀisꢀnoꢀneedꢀforꢀexternalꢀcouplers.
Figureꢀ16ꢀshowsꢀoneꢀapplicationꢀexampleꢀonꢀmobileꢀ
board.ꢀC1ꢀandꢀC2ꢀareꢀRFꢀbypassꢀcapsꢀandꢀshouldꢀ
beꢀ placedꢀ nearbyꢀ pinꢀ 1ꢀ andꢀ pinꢀ 10.ꢀ Bypassꢀ capsꢀ
C9ꢀandꢀC5ꢀmayꢀnotꢀbeꢀneeded.ꢀAlsoꢀaꢀ“T”ꢀmatchingꢀ
topologyꢀ isꢀ recommendedꢀ atꢀ PAꢀ RFINꢀ andꢀ RFOUT
portsꢀtoꢀprovideꢀmatchingꢀbetweenꢀinputꢀTXꢀFilterꢀandꢀ
Duplexerꢀ/ꢀIsolator.
Figure 15: PDF and Current
TheꢀAWU6608ꢀ hasꢀ anꢀ integratedꢀ voltageꢀ regulator,ꢀ
whichꢀ eliminatesꢀ theꢀ needꢀ forꢀ anꢀ externalꢀ constantꢀ
voltageꢀ source.ꢀ Theꢀ PAꢀ isꢀ turnꢀ on/offꢀ isꢀ controlledꢀ
byꢀVENꢀpin.ꢀAꢀsingleꢀVMODEꢀcontrolꢀlogicꢀ(VMODE1)ꢀisꢀ
neededꢀtoꢀoperateꢀthisꢀdevice.
35.4 mA Average Current over DG09 Profile
0.150
0.140
0.130
0.120
0.110
0.100
0.090
0.080
0.070
0.060
0.050
0.040
0.030
0.020
0.010
0.000
500
450
400
350
300
250
200
150
100
50
DG09 PDF
AWU6608 (mA)
Theꢀ DG09ꢀ powerꢀ distributionꢀ (figureꢀ 15)ꢀ highlightsꢀ
theꢀneedꢀtoꢀimproveꢀtheꢀcurrentꢀconsumptionꢀinꢀlowꢀ
andꢀmediumꢀpowerꢀlevel.ꢀTheꢀAWU6608ꢀisꢀdesignedꢀ
toꢀoperateꢀupꢀtoꢀ17ꢀdBmꢀinꢀtheꢀlowꢀpowerꢀmodeꢀwithꢀ
veryꢀlowꢀquiescentꢀcurrent.ꢀCurrentꢀconsumptionꢀforꢀ
AWU6608ꢀisꢀalsoꢀplottedꢀinꢀtheꢀfigureꢀ5.
0
-60
-50
-40
-30
-20
-10
0
10
20
30
Antenna Power (dBm)
Figure 16: Typical Application Circuit
PRELIMINARY DATA SHEET - Rev 1.1
9
08/2009
ANADIGICS [ ANADIGICS, INC ]
