THS7374

具有 9.5MHz 滤波器和 6dB 增益的 4 通道 SDTV（组件和复合）视频放大器

Fabricated using the revolutionary complementary Silicon-Germanium SiGe BiCom3X process, the is a low-power, single-supply 3 V to 5 V four-channel integrated video buffer. It incorporates a sixth-order Butterworth filter able to be bypassed which is useful as a digital-to-analog converter DAC reconstruction filter or an analog-to-digital converter ADC anti-aliasing filter. The 9.5-MHz filter is a perfect choice for SDTV video that includes composite CVBS, s-video, Y"U"V", G"B"R" R"G"B", and Y"P"BP"R 480i/576i.

As part of the THS7374 flexibility, the input can be configured for either ac or dc-coupled inputs. The 300-mV output level shift allows for a full sync dynamic range at the output with 0-V input. The ac-coupled modes include a transparent sync-tip clamp option for CVBS, Y", and G"B"R" signals with sync. AC-coupled biasing for C"/P"B/P"R channels can easily be achieved by adding an external resistor.

The THS7374 is the perfect choice for all video buffer applications. Its rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The ability to drive two lines per channel, or 75-Ω loads, allows for maximum flexibility as a video line driver. The 9.6-mA total quiescent current at 3.3 V and 0.1-µA disabled current makes it an excellent choice for portable or other power-sensitive applications.

The THS7374 is available in a TSSOP-14 package that is lead-free and green RoHS compliant.

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4-SDTV Video Amplifiers for CVBS, S-Video,

Y"P"BP"R 480i/576i, Y"U"V", or G"B"R" R"G"B"

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Integrated Low-Pass Filters:

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6th-Order 9.5-MHz –3 dB Butterworth

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–1 dB Passband Bandwidth at 8.2-MHz

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54-dB Attenuation at 27-MHz

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150-MHz –3 dB Filter Bypass Mode

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Versatile Input Biasing

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DC-Coupled with 300-mV Output Shift

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AC-Coupled with Sync-Tip Clamp

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AC-Coupled with Biasing Allowed

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Built-in 6-dB Gain 2 V/V

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+3-V to +5-V Single-Supply Operation

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Rail-to-Rail Output:

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Output Swings Within 100 mV from the Rails to Allow AC or DC Output Coupling

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Supports Driving 2 Lines per Channel

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Low 9.6-mA at 3.3-V Total Quiescent Current

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0.1-µA Disabled Supply Current Function

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Low Differential Gain/Phase of 0.15%/0.3°

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Lead-Free and Green TSSOP-14 Package