07/2008
APS3605
1 GHz Three-way Active Power Splitter
PRELIMINARY DATA SHEET - Rev 1.4
S26 Package
12 Pin QFN
3 mm x 3 mm x 1 mm
FEATURES
• SingleInput,TripleOutputDesign
• WidebandOperationBeyond1GHz
• SupportsbothAnalogTVandDigitalTVLineups
• Nominal3dBGain
• 5.5dBTypicalNoiseFigure
• Single+5VSupply,withOperationDownto+3.3V
• HighLinearity,LowDistortion
• CurrentAdjustPinforoptimizingdistortion
performance
• Single-Ended75OhmInputs/Outputs
• RoHSCompliantPackage
APPLICATIONS
• Analog/DigitalandAll-DigitalCATVSet-TopBoxes
withMultipleTuners
• Multiple-TunerTVs,TVTunerCardsand
BroadbandMediaCenters
PRODUCT DESCRIPTION
ThisAPS3605activesplitterfromANADIGICSaccepts
abroadbandRFinputfrom50MHzto1GHzandsplits
thesignaltoprovidethreebroadbandRFoutputswith
minimal degradation of quality. The single-package
surfacemountdeviceampliestheinputusinghighly
linear,lownoiseamplicationstages,andcouplesthe
ampliedsignaltothreeseparateoutputpathsthat
each can drive either analog video, digital video or
digitaldatatuners.Theoveralllinearityofeachpath
ismaintainedacrosstheentireoperatingfrequency
Figure 1: Functional Block Diagram
range,ensuringlowdistortioneffectsoneachoutput
signal.
Requiringasinglevoltagesupplyof+5V,andoperable
down to +3.3 V, the active splitter is manufactured
usingANADIGICS’ highly reliable GaAs MESFET
process. The small surface mount QFN packaging
makes this device ideal for use in today’s set-top
boxes, televisions and video tuner cards requiring
multiple-tunersolutions.
RF Input
RF Output 1
RF Output 2
GND
RF Output 3
Current
Adjust
APS3605
2PRELIMINARY DATA SHEET - Rev 1.4
07/2008
APS3605
Table 1: Pin Description
Figure 2: Pinout (X-ray Top View)
RFIN
GND
GND
GND
IADJ
RFOUT3 RFOUT1
GND
GND
GND
GND
RFOUT2
1
4
9
8
73
2
56
101112
GND Paddle
PIN NAME DESCRIPTION
1GND Ground
2RF
IN
RFInput
3GND Ground
4I
ADJ
CurrentAdjust
5GND Ground
6RF
OUT3
RFOutput3
7GND Ground
8RF
OUT2
RFOutput2
9GND Ground
10 RF
OUT1
RFOutput1
11 GND Ground
12 GND Ground
PRELIMINARY DATA SHEET - Rev 1.4
07/2008
APS3605
3
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Minimum and Maximum Ratings
Stresses in excess of the absolute ratings may cause permanent damage. Functional
operation is not implied under these conditions. Exposure to absolute ratings for extended
periods of time may adversely affect reliability.
Table 3: Operating Ranges
The device may be operated safely over these conditions; however, parametric performance is guaranteed only
over the conditions dened in the electrical specications.
PARAMETER MIN MAX UNIT COMMENTS
SupplyVoltage(V
CC
)0+8 V
RFInputPower -+25 dBmV perchannel
ESDRating 500
1000
-
-
VHumanBodyModel,Class1B
ChargedDeviceModel,Class3
MSLLevel MSL-1
PARAMETER MIN TYP MAX UNIT COMMENTS
OperatingFrequency(f) 50 -1000 MHz
SupplyVoltage(V
CC
)+3.3 -+5 V
RFInputPower(P
IN
) - - +18 dBmV perchannel
CaseTemperature(T
C
)-5 -+85 °C nodamagetodeviceoperating
over-30to+95°Crange
4PRELIMINARY DATA SHEET - Rev 1.4
07/2008
APS3605
Table 4: Electrical Specications for Digital TV
(TAMB = +25 °C, VCC = +5 V, ICC = 100 mA, 75 Ω system, ref. Figure 12)
Table 5: Electrical Specications for Analog TV
(TAMB = +25 °C, VCC = +5 V, ICC = 135 mA, 75 Ω system, ref. Figure 13)
Notes:
(1) 132 channels, +15 dBmV input per channel.
Notes:
(1) 132 channels, +15 dBmV input per channel.
The Analog TV electrical specications are provided for reference only. ANADIGICS does not perform a production
screen for, and therefore does not guarantee, such performance.
PARAMETER MIN TYP MAX UNIT COMMENTS
Gainat100MHz 2.0 2.7 -dB
NoiseFigure -5.6 -dB
CTB
(1)
--77 -66 dBc
CSO
(1)
--64 -58 dBc
XMOD
(1)
--66 -dBc
RFIsolation
Input-Output
Output-Output
-
-
21
25
-
-dB
InputReturnLoss --9 -dB
CurrentConsumption(I
CC
)75 100 130 mA
PARAMETER MIN TYP MAX UNIT COMMENTS
Gainat100MHz -2.8 -dB
NoiseFigure -5.4 -dB
CTB
(1)
--81 -dBc
CSO
(1)
--67 -dBc
XMOD
(1)
--76 -dBc
RFIsolation
Input-Output
Output-Output
-
-
21
25
-
-dB
InputReturnLoss --9 -dB
CurrentConsumption(I
CC
) - 135 -mA
PRELIMINARY DATA SHEET - Rev 1.4
07/2008
APS3605
5
PERFORMANCE DATA
Figure 3: Gain (S21) vs. Frequency
(TAMB = +25 °C, VCC = +5 V)
Figure 4: Input Return Loss (S11) vs. Frequency
(TAMB = +25 °C, VCC = +5 V)
Figure 5: Reverse Isolation (S12) vs. Frequency
(TAMB = +25 °C, VCC = +5 V)
Figure 6: Output Return Loss (S22) vs.
Frequency (TAMB = +25 °C, VCC = +5 V)
Figure 7: Noise Figure vs. Frequency
(TAMB = +25 °C, VCC = +5 V)
Figure 8: Port-to-Port Isolation vs. Frequency
(TAMB = +25 °C, VCC = +5 V)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0 100 200 300 400 500 600 700 800 900 1000 1100
Frequency (MHz)
S21 (dB)
AnalogTV(Icc=135mA)
DigitalTV(Icc=100mA)
-40
-35
-30
-25
-20
-15
-10
-5
0
0300 600900 1200 1500 1800 2100 2400 2700 3000
Frequency (MHz)
S12 (dB)
-40
-35
-30
-25
-20
-15
-10
-5
0
0100 200300 400500 600700 800 90010001100
Frequency (MHz)
S22 (dB)
4.0
4.5
5.0
5.5
6.0
6.5
7.0
0100 200300 400500 600700 800900 1000 1100
Frequency (MHz)
Noise Figure (dB)
-40
-35
-30
-25
-20
-15
-10
-5
0
0 300 600 900 1200 1500 1800 2100 2400 2700 3000
Frequency (MHz)
Port-to-Port Isolation (dB)
RFOUT1toRFOUT3
RFOUT1toRFOUT2
RFOUT2toRFOUT3
6PRELIMINARY DATA SHEET - Rev 1.4
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APS3605
Figure 9: CTB vs. Frequency
(TAMB = +25 °C, VCC = +5 V, 132 Channels, +15 dBmV Input per Channel)
Figure 10: CSO vs. Frequency
(TAMB = +25 °C, VCC = +5 V, 132 Channels, +15 dBmV Input per Channel)
Figure 11: XMOD vs. Frequency
(TAMB = +25 °C, VCC = +5 V, 132 Channels, +15 dBmV Input per Channel)
-90
-85
-80
-75
-70
-65
-60
0100 200300 400500 600700 800900 1000
Frequency (MHz)
CTB (dBc)
AnalogTV(Icc=135mA)
DigitalTV(Icc=100mA)
-90
-85
-80
-75
-70
-65
-60
0 100 200 300 400 500 600 700 800 900 1000
Frequency (MHz)
CSO (dBc)
AnalogTV(Icc=135mA)
DigitalTV(Icc=100mA)
-90
-85
-80
-75
-70
-65
-60
0100 200300 400500 600700 800900 1000
Frequency (MHz)
XMOD (dBc)
AnalogTV(Icc=135mA)
DigitalTV(Icc=100mA)
PRELIMINARY DATA SHEET - Rev 1.4
07/2008
APS3605
7
APPLICATION INFORMATION
Figure 13: Analog TV Application Circuit
Figure 12: Digital TV Application Circuit
TheAPS3605remainsfunctionalwithasupplyvoltageaslowas+3.3V.PleasecontactanANADIGICSsales
representativeforinformationregardingelectricalperformanceatlowersupplyvoltages.
2
19
8
73
GND
GND
RF
IN
I
ADJ
(75Ohms)
RFInput
+5V
GND
45 6
1012 11
GND
GND
RF
OUT2
RF
OUT3
GND
330pF RFOutput2
(75Ohms)
0.01uF
GND
RF
OUT1
0.01uF
0.01uF 0.01uF
330pF RFOutput3
(75Ohms)
330pF RFOutput1
(75Ohms)
0.01uF
12Ohms
470nH 470nH 470nH
X
2
19
8
73
GND
GND
RF
IN
I
ADJ
(75Ohms)
RFInput
+5V
GND
45 6
1012 11
GND
GND
RF
OUT2
RF
OUT3
GND
330pF RFOutput2
(75Ohms)
0.01uF
GND
RF
OUT1
0.01uF
0.01uF0.01uF
330pFRFOutput3
(75Ohms)
330pFRFOutput1
(75Ohms)
0.01uF
3.9Ohms
4.7KOhms470nH 470nH 470nH
8PRELIMINARY DATA SHEET - Rev 1.4
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APS3605
PACKAGE OUTLINE
Figure 14: S26 Package Outline - 12 Pin 3 mm x 3 mm x 1 mm QFN
PRELIMINARY DATA SHEET - Rev 1.4
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APS3605
9
NOTES
10 PRELIMINARY DATA SHEET - Rev 1.4
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APS3605
NOTES
PRELIMINARY DATA SHEET - Rev 1.4
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APS3605
11
NOTES
WARNING
ANADIGICSproductsarenotintendedforuseinlifesupportappliances,devicesorsystems.UseofanANADIGICSproduct
inanysuchapplicationwithoutwrittenconsentisprohibited.
IMPORTANT NOTICE
ANADIGICS, Inc.
141MountBethelRoad
Warren,NewJersey07059,U.S.A.
Tel:+1(908)668-5000
Fax:+1(908)668-5132
URL:http://www.anadigics.com
E-mail:Mktg@anadigics.com
ANADIGICS,Inc.reservestherighttomakechangestoitsproductsortodiscontinueanyproductatanytimewithoutnotice.
TheproductspecicationscontainedinAdvancedProductInformationsheetsandPreliminaryDataSheetsaresubjectto
changepriortoaproduct’sformalintroduction.InformationinDataSheetshavebeencarefullycheckedandareassumed
tobereliable;however,ANADIGICSassumesnoresponsibilitiesforinaccuracies.ANADIGICSstronglyurgescustomers
toverifythattheinformationtheyareusingiscurrentbeforeplacingorders.
PRELIMINARY DATA SHEET - Rev 1.4
07/2008
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APS3605
ORDERING INFORMATION
ORDER NUMBER TEMPERATURE
RANGE
PACKAGE
DESCRIPTION COMPONENT PACKAGING
APS3605RS26Q1 -5
o
Cto+85
o
C
RoHSCompliant12Pin
3mmx3mmx1mm
QFNPackage
TapeandReel,1000piecesperReel