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ADA4411-3 数据表(PDF) 1 Page - Analog Devices |
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ADA4411-3 数据表(HTML) 1 Page - Analog Devices |
1 / 16 page Integrated Triple Video Filter and Buffer with Selectable Cutoff Frequencies and Multiplexed Inputs for RGB, HD/SD ADA4411-3 Rev. 0 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 FUNCTIONAL BLOCK DIAGRAM Sixth-order adjustable video filters CUTOFF SELECT INPUT SELECT DC OFFSET Y1/G1 IN Y2/G2 IN Pb1/B1 IN Pb2/B2 IN Pr1/R1 IN Pr2/R2 IN LEVEL2 LEVEL1 GAIN SELECT 2 Y/G OUT Pb/B OUT Pr/R OUT DISABLE 36MHz, 18MHz, 9MHz ×2 ×4 36MHz, 18MHz, 9MHz ×2 ×4 36MHz, 18MHz, 9MHz ×2 ×4 ADA4411-3 36 MHz, 18 MHz, and 9 MHz Many video standards supported: RGB, YPbPr, YUV, SD, Y/C Ideal for 720p and 1080i resolutions −1 dB bandwidth of 30.5 MHz for HD Low quiescent power Only 265 mW for 3 channels on 5 V supply Disable feature cuts supply current to 15 μA 2:1 mux on all inputs Variable gain: ×2 or ×4 DC output offset adjust: ±0.5 V, input referred Excellent video specifications Wide supply range: +4.5 V to ±5 V Rail-to-rail output Output can swing 4.5 V p-p on single 5 V supply Small packaging: 24-lead QSOP Figure 1. APPLICATIONS Set-top boxes Personal video recorders DVD players and recorders HDTVs Projectors GENERAL DESCRIPTION The ADA4411-3 is a comprehensive filtering solution designed to give designers the flexibility to easily filter and drive various video signals, including high definition video. Cutoff frequen- cies of the sixth-order video filters range from 9 MHz to 36 MHz and can be selected by two logic pins to obtain four filter combinations that are tuned for RGB, high definition, and standard definition video signals. The ADA4411-3 has a rail- to-rail output that can swing 4.5 V p-p on a single 5 V supply. The ADA4411-3 can operate on a single +5 V supply as well as on ±5 V supplies. Single-supply operation is ideal in 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 video signal excursions 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-coupled or ac-coupled. The ADA4411-3 offers gain and voltage offset adjustments. With a single logic pin, the throughput filter gain can be selected to be ×2 or ×4. Output voltage offset is continuously adjustable over an input-referred range of ±500 mV by applying a differential voltage to an independent offset control input. The ADA4411-3 is available in the 24-lead, wide body QSOP and is rated for operation over the extended industrial temperature range of −40°C to +85°C. The ADA4411-3 offers 2:1 multiplexers on all of its video inputs, which are useful in applications where filtering is required for multiple sources of video signals. |
类似零件编号 - ADA4411-3 |
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类似说明 - ADA4411-3 |
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