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ADA4410-6ACPZ-R7 Datasheet(PDF) 1 Page - Analog Devices |
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ADA4410-6ACPZ-R7 Datasheet(HTML) 1 Page - Analog Devices |
1 / 16 page Integrated Video Filter with Selectable Cutoff Frequencies for RGB, HD/SD Y, C, and CV ADA4410-6 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 © 2006 Analog Devices, Inc. All rights reserved. FEATURES Sixth-order filters with selectable cutoff frequencies 36 MHz, 18 MHz, 9 MHz Many video standards supported RGB/YPbPr/YUV/SD/YC/CV Ideal for resolutions up to 1080i −1 dB bandwidth of 30 MHz for HD 2:1 multiplexers on all inputs Selectable gain: ×2 or ×4 DC output offset adjust: ±0.5 V, input referred Excellent video specifications NTSC differential gain: 0.11% NTSC differential phase: 0.25° Low input bias current: 6.6 μA Wide supply range: +4.5 V to ±5 V Rail-to-rail output Typical output swing of 4.5 V p-p on single 5 V supply Disable feature APPLICATIONS Set-top boxes DVD players and recorders HDTVs GENERAL DESCRIPTION The ADA4410-6 is a comprehensive integrated filtering solution that is carefully designed to give designers the flexibility to easily filter and drive many types of video signals, including high definition video. In the RGB/component channels, the cutoff frequencies of the sixth-order filters can be selected by two logic pins to obtain four filter combinations that are tuned for RGB, high definition, and standard definition video. Cutoff frequencies range from 9 MHz to 36 MHz. The ADA4410-6 also provides filtering for the legacy standard S-video and composite video signals. With a differential gain of 0.11% and a differential phase of 0.25°, the ADA4410-6 is an excellent choice for any composite video (CV) application. The ADA4410-6 offers gain and output offset voltage adjustments. With a single logic pin, the gain of the part can be selected to be ×2 or ×4. Output offset voltage is continuously adjustable over an input-referred range of ±500 mV by applying a differential voltage to an independent offset control input. FUNCTIONAL BLOCK DIAGRAM 36MHz, 18MHz, 9MHz 36MHz, 18MHz, 9MHz 36MHz, 18MHz, 9MHz 9MHz 9MHz Y1/G1 IN Y2/G2 IN ×2 ×4 Y/G OUT Pb1/B1 IN Pb2/B2 IN ×2 ×4 Pb/B OUT Pr1/R1 IN Pr2/R2 IN LEVEL1 DC OFFSET HD INPUT SELECT LEVEL2 CUTOFF SELECT GAIN SELECT ×2 ×4 Pr/R OUT Y1 IN Y2 IN ×2 ×4 Y OUT C1 IN C2 IN SD INPUT SELECT DISABLE ×2 ×4 C OUT ×2 CV OUT 2 ADA4410-6 Figure 1. The ADA4410-6 offers 2:1 multiplexers on its inputs that can be used in applications where multiple sources of video exist. The ADA4410-6 can operate on a single +5 V supply as well as ±5 V supplies. Single-supply operation is ideal for applications where power consumption is critical. The disable feature allows for further power conservation by reducing the supply current to typically 15 μA when a particular device is not in use. Dual-supply operation is best for applications where the negative-going excursions of the signal must swing at or below ground while maintaining excellent video performance. The output buffers have the ability to drive two 75 Ω doubly terminated cables that are either dc- or ac-coupled. The ADA4410-6 is available in a 32-lead LFCSP and operates in the extended industrial temperature range of −40°C to +85°C. |
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