THS7316

• 3 HDTV Video Amplifiers for Y’P’_BP’_R 720p and 1080i, G’B’R’ (R’G’B’), VGA/SVGA/XGA
• Integrated Low-Pass Filters
  • 5^th-Order 36-MHz (–3 dB) Butterworth Filter
    • –1 dB Passband Bandwidth at 31 MHz
    • 30 dB Attenuation at 74 MHz
• Versatile Input Biasing
  • DC-Coupled With 140-mV Input Shift
  • AC-Coupled with Sync-Tip Clamp
  • Allows AC-Coupled With Biasing
• Built-in 6-dB Gain (2V/V)
• 3-V to 5-V Single Supply Operation
• Rail-to-Rail Output:
  • Output Swings Within 100 mV From the Rails Allowing AC or DC Output Coupling
  • Supports Driving 2 Lines per Channel
• Low 18.3-mA at 3.3-V Total Quiescent Current
• Low Differential Gain/Phase of 0.1% / 0.1°
• SOIC-8 Package
• APPLICATIONS
  • Set Top Box Output Video Buffering
  • PVR/DVDR Output Buffering
  • USB/Portable Low Power Video Buffering

Fabricated using the Silicon-Germanium (SiGe) BiCom-III process, the THS7316 is a low power single-supply 3-V to 5-V, 3-channel integrated video buffer. It incorporates a 5th-order modified Butterworth filter which is useful as a DAC reconstruction filter or an ADC anti-aliasing filter. The 36-MHz filter is a perfect choice for HDTV video which includes Y’P’_BP’_R 720p/1080i, G’B’R’ (R’G’B’), and VGA/SVGA/XGA signals.

As part of the THS7316 flexibility, the input can be configured for ac or dc coupled inputs. The DC + 140-mV input offset shift to allow 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 signals with sync such as Y’ or Green with sync. AC-coupled biasing for P’_B/P’_R/Non-sync channels can be achieved by adding an external resistor.

The THS7316 is the perfect choice for all output buffer applications. Its rail-to-rail output stage with 6-dB gain allows for both ac and dc line driving. The ability to drive 2 video lines per channel, or 75- loads, allows for maximum flexibility as a video line driver. The 18.3-mA total quiescent current makes it an excellent choice for USB powered, portable, or other power sensitive video applications.

The THS7316 is available in a small SOIC-8 package that is RoHS compliant.