User's Manual

RF Module Components
FlexWave Prism RF Modules for Prism Remote Units Installation Guide Page 9
TECP-77-141 • Issue 1 • April 2012 © 2012 TE Connectivity Ltd.
DuplexerandLowNoiseAmplifier
TheRFModuleprovidesthePRUwithaninternalDuplexerthatisoptimizedtoprovidethe
desiredRFband‐passfilteringandin‐bandequipmentisolationbetweenFWDandREVpaths.
TheDuplexerprovidesthefilteringnecessarytothetransmitandreceivepathstotheconnected
antenna.
TheDuplexerforthePrismRemoteUnitSingle‐andDual‐CardRF
ModulesandtheDual‐Slot40W
RFModulescontainsuptotwoREVpathLowNoiseAmplifiers(LNAforPRIand/orSECreverse
paths).EachLNAprovidesthePrismreversepathwithnominal30dBREVgainandsystemNFof
5dBperRXpath.
TheDuplexerforanHDMRFModule
doesnothaveaLowNoiseAmplifier.
Duplexersarenotfieldserviceable.
LinearPowerAmplifiers
TheLinearPowerAmplifier(LPA)isahighqualitybroadbandRFamplifierusedforachieving
Prismproduct‐ratedpowerforthePRUTxforwardpathspectrumRF.ThePAsarepass‐band
specific,withthemaximumcompositeTxpowerlevels,and>10dBinstantaneouspeakpower
ratinglistedin:
• Table4forSingle‐Card,Dual‐Card,andHDMRFModules
• Table5onpage10forDual‐Slot40WRFModules.
TheLPAishousedwithinthe
RFModule,andisnotfieldserviceable.
Table4. LPAMaximumCompositeTxPowerLevelsforSingle‐Card,Dual‐Card,andHDMRFModules
Passband Maximum
dBm
Watts Instantaneous
Bandwidth
(MHz)
AWS 2100 +43 20 45
Cellular 850 +43 20 25
+46 40 25
EGSM 900 +40 10 35
DCS 1800 +42 15.8 75
LTE 700 Lower ABC +43 20 18
+46 40 18
LTE 700 Upper C +43 20 10
+46 40 10
PCS 1900 +43 20 70
PGSM 900 +40 10 25
SMR 800 +38 6.5 18
SMR 900 +38 6.5 5
UMTS 2100 +42 15.8 60