09/2009
APS3628
Eight-way Active Power Splitter
ADVANCED PRODUCT INFORMATION - Rev 0.1
S34 Package
24 Pin QFN
4 mm x 4 mm x 1 mm
FEATURES
• SingleInput,EightOutputDesign
• WidebandOperationtoabove1GHz
• Nominal3.2dBGain
• 4.7dBTypicalNoiseFigure
• Single+3.3Vor+5VSupply
• HighLinearity,LowDistortion
Currentadjustpinforoptimizingdistortion•
performance
• Single-Ended75OhmInputs/Outputs
• MaterialssetconsistentwithRoHSDirectives
APPLICATIONS
• All-DigitalCATVSet-TopBoxeswithMultiple
Tuners
• HomeGateways,Multiple-TunerTVsandSet-top
boxes
PRODUCT DESCRIPTION
ThisAPS3628activesplitterfromANADIGICSaccepts
a broadband RF input from 50 MHz to 1002 MHz
andsplitsthesignaltoprovideeightbroadbandRF
outputswithminimaldegradationofquality.Thesingle-
package surface mount device amplies the input
using highly linear, low noise amplication stages,
and couples the amplied signal to eight separate
outputpathsthateachcandrivedigitalvideotuners.
Theoveralllinearityofeachpathismaintainedacross
the entire operating frequency range, ensuring low
distortioneffectsoneachoutputsignal.
Requiring a single voltage supply of either +3.3V
or +5 V, the active splitter is manufactured using
ANADIGICS’highlyreliableGaAsMESFETprocess.
The small surface mount QFN packaging makes
this device ideal for use in today’s set-top boxes,
televisionsandvideotunercardsrequiringmultiple-
tunersolutions.
Figure 1: Functional Block Diagram