ACPM - 7881
W-CDMA Power Amplifer
Data Sheet
Features
Description
•ꢀ Operatingꢀfrequency:ꢀ1920ꢀ-ꢀ1980ꢀMHzꢀ
•ꢀ 28.5ꢀdBmꢀLinearꢀOutputꢀPowerꢀ@ꢀ3.5V
•ꢀ HighꢀEfficiencyꢀ46%ꢀPAE
TheꢀACPM-7881ꢀisꢀaꢀhighꢀperformanceꢀW-CDMAꢀpowerꢀ
amplifierꢀmoduleꢀofferedꢀinꢀaꢀ4x4x1.1mmꢀpackage.ꢀꢀDe-
signedꢀaroundꢀAvagoꢀTechnologies’ꢀGaAsꢀEnhancementꢀ
ModeꢀpHEMTꢀprocess,ꢀtheꢀACPM-7881ꢀoffersꢀpremiumꢀ
powerꢀaddedꢀefficiencyꢀandꢀlinearityꢀinꢀaꢀveryꢀsmallꢀformꢀ
factor.ꢀꢀTheꢀPAꢀisꢀfullyꢀmatchedꢀtoꢀ50ꢀOhmsꢀonꢀtheꢀinputꢀ
andꢀoutput.
•ꢀ Singleꢀbias,ꢀlowꢀquiescentꢀcurrentꢀ(50mA)
•ꢀ Internalꢀ50ꢀohmꢀmatchingꢀnetworksꢀforꢀbothꢀRFꢀinputꢀ
&ꢀoutput
TheꢀamplifierꢀhasꢀexcellentꢀACLRꢀandꢀefficiencyꢀperfor-
manceꢀatꢀmaxꢀPout,ꢀ28.5dBm,ꢀandꢀlowꢀquiescentꢀcurrentꢀ
(50mA)ꢀwithꢀaꢀsingleꢀbiasꢀcontrolꢀvoltage,ꢀVctrlꢀ=ꢀ2.0V.ꢀꢀNoꢀ
regulatedꢀvoltagesꢀareꢀrequiredꢀtoꢀsetꢀtheꢀbias,ꢀVdd2ꢀcanꢀ
beꢀconnectedꢀdirectlyꢀtoꢀtheꢀbattery.
•ꢀ Noꢀregulatedꢀvoltagesꢀrequired
•ꢀ 3.2ꢀ-ꢀ4.5ꢀVꢀlinearꢀoperation
•ꢀ 4.0ꢀxꢀ4.0mmꢀSMTꢀPackage
•ꢀ Lowꢀpackageꢀprofile,ꢀ1.1mm
DesignedꢀinꢀaꢀsurfaceꢀmountꢀRFꢀpackage,ꢀtheꢀACPM-7881ꢀ
isꢀveryꢀcostꢀandꢀsizeꢀcompetitive.ꢀ
Applications
•ꢀ W-CDMAꢀHandsets
•ꢀ DataꢀCards
•ꢀ PDAs
Functional Block Diagram
Vdd1
(1)
Vddꢀ
(10)
RF in
(ꢁ)
Output
Match
RF out
(ꢄ)
Bias Control
MMIC
Module
Vctrl
(ꢃ)
Vddꢁ
(ꢂ)
Gnd
(ꢀ,ꢅ,ꢆ,ꢇ)