Data Sheet - Rev 2.1
03/2010
AWU6608
9
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 -10 010 20 30
0
50
100
150
200
250
300
350
400
450
500
Figure 15: PDF and Current
Figure 16: Typical Application Circuit
HELP3
TheAWU6608 power amplier module is based on
ANADIGICS proprietary HELP3™ technology. The
PA is designed to operate up to 17 dBm in the low
powermode,thuseliminatingtheneedforthreegain
state, while still maintaining low quiescent current
andhighefciencyinlowandmediumpowerlevels.
ThePA canstillbeoperatedas3gainstate device
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 (gure 15) highlights
theneedtoimprovethecurrentconsumptioninlow
andmediumpowerlevel.TheAWU6608isdesigned
tooperateupto17dBminthelowpowermodewith
verylowquiescentcurrent.Currentconsumptionfor
AWU6608isalsoplottedinthegure5.
AWU6608 requires only two calibration sweeps for
systemcalibration,thussavingcalibrationtime.
Figure16showsoneapplicationexampleonmobile
board. C1 and C2 are RF bypass caps and should
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.