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ADA4302-4ACPZ-EBDI Datasheet(PDF) 1 Page - Analog Devices |
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ADA4302-4ACPZ-EBDI Datasheet(HTML) 1 Page - Analog Devices |
1 / 12 page Active RF Splitter ADA4302-4 Rev. B Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 © 2005 Analog Devices, Inc. All rights reserved. FEATURES Single 5 V supply 54 MHz to 865 MHz CATV operating range 4.6 dB of gain per output channel 4.4 dB noise figure 25 dB isolation between output channels −16 dB input return loss CSO of −73 dBc (135 channels, 15 dBmV per tone) CTB of −66 dBc (135 channels, 15 dBmV per tone) 1.3 GHz, −3 dB bandwidth APPLICATIONS Cable set-top boxes Home gateways CATV distribution systems Cable splitter modules GENERAL DESCRIPTION The ADA4302-4 is used as an active element in applications where a lossless signal split is required. Typical applications include multituner cable set-top boxes, cable splitter modules, multituner televisions, and home gateways where traditional solutions have consisted of discrete passive splitters followed by separate fixed gain amplifiers. The ADA4302-4 is a low cost alternative solution that simplifies designs and improves system performance by integrating a signal splitter element and gain element into a single IC solution. The ADA4302-4 features four differential outputs. The differential architecture allows systems designed with the ADA4302-4 to maintain excellent linearity throughout the CATV band. The ADA4302-4 can also be configured for applications that require fewer than four outputs. Outputs can be configured independently from one another. FUNCTIONAL BLOCK DIAGRAM SPLITTER VIN ILP VIP ILN GND GND J1 GND VCC VCC + VCC VOP4 VON3 VOP3 VON2 VOP2 VON1 VOP1 VON4 Figure 1. FREQUENCY (MHz) –55 –85 50 1000 –70 100 –60 –65 –75 –80 TA = +85°C TA = –40°C TA = +25°C Figure 2. Composite Second-Order (CSO) vs. Frequency |
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