Texas Instruments LMV232 Bruksanvisning
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PA1
ANTENNA
RF
IN
1
LMV232
RF
INPUT
OUT
R1
6.2 k:
RF
IN
2
PA2
RF
INPUT
FB
BSSD
V
DD
GND
A3
B3
C1
B1
A1
C3
C2
A2
R3
50:
C1
1.5 nF
COUPLER
COUPLER
TO BASEBAND
R2
50:
LMV232
www.ti.com
SNWS017C–DECEMBER2004–REVISEDMARCH2013
LMV232Dual-ChannelIntegratedMeanSquarePowerDetectorforCDMA&WCDMA
CheckforSamples:LMV232
1
FEATURES
DESCRIPTION
TheLMV232dualRFdetectorisdesignedforRF
•>20dBSquare-LawDetectionRange
transmitpowermeasurementinmobilephones.This
•2SequentiallySelectableRFInputs
dualmeansquareICisespeciallysuitedforaccurate
•LowPowerConsumptionShutdownMode
powermeasurementofRFsignalsexhibitinghigh
peak-to-averageratiosusedin3GandUMTS/CDMA
•ExternallyConfigurableGainandLFFilter
applications.TheLMV232savescalibrationsteps
Bandwidth.
andsystemcertificationandishighlyaccurate.The
•Internal50ΩRFTerminationImpedance
circuitoperateswithasinglesupplyfrom2.5to3.3V.
•OptimizedforUsewith20dBDirectional
TheLMV232containsameansquaredetectorwith
Coupler
twosequentiallyselectableRFinputs.TheRFinput
•LeadFree8-BumpDSBGAPackage1.5x1.5x
powerrangeofthedevicehasbeenoptimizedforuse
0.6mm
witha20dBdirectionalcoupler,withouttheneedfor
additionalexternalcomponents.AsingleexternalRC
combinationbetweenFBandOUTprovidesan
APPLICATIONS
externallyconfigurablegainandLFfilterbandwidthof
•3GMobileCommunications
thedevice.
•UMTS
Thedevicehastwodigitalinterfaces.Ashutdown
•WCDMA
functionisavailabletosetthedeviceinalow-power
•CDMA2000
shutdownmode.IncaseSD=HIGH,thedeviceisin
shutdown,ifSD=LOWthedeviceisactive.The
•TD-SCDMA
Band-Selectfunctioncontrolstheselectionofthe
•RFControl
activeRFinputchannel.IncaseBS=HIGH,RF
IN
1is
•WirelessLAN
active.IncaseBS=LOW,RF
IN
2isactive.
•PCCardandGPSModules
Thedualmeansquaredetectorisofferedinan8-
bumpDSBGA1.5x1.5x0.6mmpackage.This
DSBGApackagehasthesmallestfootprintand
height.
TYPICALAPPLICATION
1
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2004–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Produktspecifikationer
| Varumärke: | Texas Instruments |
| Kategori: | ej kategoriserat |
| Modell: | LMV232 |
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