APS3604

APS3604 Active Splitter for CATV Set-Top Boxes PRELIMINARY DATA SHEET - Rev 1.0 FEATURES Single Input, Triple Output Design - Three Video Tuner Outputs Wideband Operation: To Above 1 GHz 5 dB Typical Noise Figure at 5 dB Gain Wide Dynamic Range AGC Control, Independent for each Tuner Path High Linearity, Low Distortion Single +5 V Supply Balanced 75 Ohm Inputs/Outputs RoHS Compliant/Lead Free APPLICATIONS CATV Set-Top Boxes with Multiple Tuners S29 Package 28 Pin QFN 5 mm x 5 mm x 1 mm PRODUCT DESCRIPTION This active splitter from ANADIGICS accepts a balanced RF input in the 50 MHz to 1.1 GHz frequency range and provides three balanced RF outputs with minimal degradation in signal quality. The singlepackage surface mount device amplifies the input signals using highly linear, low noise amplification www.DataSheet4U.com stages, and couples the amplified signal to three separate output paths to drive video tuner inputs. Each of the output paths includes independent Automatic Gain Control (AGC). The overall linearity of each tuner path is maintained across a wide AGC range, ensuring low distortion effects on each output signal. Requiring only a single +5 Volt supply, the active splitter design is implemented using the ANADIGICS GaAs MESFET process. The surface mount packaging makes the device ideal for use in today’s multiple-tuner set-top boxes for Cable TV. AGC VID1 AGC VID2 AGC VID3 VID1OUT+ VID1OUTRFIN+ RFINVID2OUT+ VID2OUTVID3 OUT+ VID3 OUT- Figur...