ADA4412-3ARQZ-R7

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1. DESCRIPTION

The ADA4412-3ARQZ-R7 is a comprehensive filtering solution designed to give designers the flexibility to easily filter and drive various video signals, including high definition video. Cutoff frequencies 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 ADA4412-3ARQZ-R7 has a rail torail output that can swing 4.5 V p-p on a single 5 V supply. The ADA4412-3ARQZ-R7 includes an output offset voltage adjustment feature. 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 ADA4412-3ARQZ-R7 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 10 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 ADA4412-3ARQZ-R7 is available in a 20-lead QSOP and is rated for operation over the extended industrial temperature range of −40°C to +85°C. 

2. FEATURES

    1. Sixth-order adjustable video filters

        - 36 MHz, 18 MHz, and 9 MHz

    2. Many video standards supported: RGB, YPbPr, YUV, SD, Y/C

    3. Ideal for 720p and 1080i resolutions

        - −1 dB bandwidth of 31.5 MHz for HD

    4. Low quiescent power

        - Only 265 mW for 3 channels on 5 V supply

        - Disable feature cuts supply current to 10 μA

    5. DC output offset adjust: ±0.5 V, input referred

    6. Fixed throughput gain of ×2

    7. Excellent video specifications

    8. Wide supply range: +4.5 V to ±5 V

    9. Rail-to-rail output

        - Output can swing 4.5 V p-p on single 5 V supply

  10. Small packaging: 20-lead QSOP

3. APPLICATIONS

    1. Set-top boxes

    2. DVD players and recorders

    3. Personal video recorders

    4. HDTVs

    5. Projectors