1FEATURES

· 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

– 5th-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

DESCRIPTION

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-Ω

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.