1FEATURES

2345. Three SDTV Video Amplifiers for CVBS,

S-Video, Y’/P’B/P’R, 480i/576i, Y’U’V’, or G'B'R'

. Three SD/ED/HD/Full-HD Selectable Filters for

Y’/P’B/P’R, G’B’R’, or Computer RGB

. Bypassable Sixth-Order Low-Pass Filters:

. Fixed SD Channels: 9.5-MHz

. Selectable Channels:

9.5-MHz/18-MHz/36-MHz/72-MHz

. Versatile Input Biasing:

. DC-Coupled with 300-mV Output Shift

. AC-Coupled with Sync-Tip Clamp or Bias

. Built-in 6-dB Gain (2 V/V)

. +2.7-V to +5-V Single-Supply Operation

. Rail-to-Rail Output:

. Output Swings Within 100 mV from the

Rails: Allows AC or DC Output Coupling

. Supports Driving Two Video Lines/Channel

. Low Total Quiescent Current: 23.4 mA at 3.3 V

. Disabled Supply Current Function: 0.1 μA

. Low Differential Gain/Phase: 0.2%/0.35°

APPLICATIONS

. Set Top Box Output Video Buffering

. PVR/DVDR Output Buffering

. BluRay™ Output Video Buffer

DESCRIPTION

Fabricated using the revolutionary, complementary

Silicon-Germanium (SiGe) BiCom3X process, the

THS7368 is a low-power, single-supply, 2.7-V to 5-V,

six-channel integrated video buffer. It incorporates

three SDTV filters and three selectable

SD/ED/HD/Full-HD (also known as True-HD) HDTV

filters. All filters feature bypassable sixth-order

Butterworth characteristics that are useful as

digital-to-analog converter (DAC) reconstruction filters

or as analog-to-digital converter (ADC) anti-aliasing

filters.

The THS7368 has flexible input coupling capabilities

that 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 for CVBS, Y', and G'B'R' signals. AC-coupled

biasing for C'/P'B/P'R channels can easily be achieved

by adding an external resistor to VS+.

The THS7368 is an ideal 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, or 75-Ω loads, allows for maximum

flexibility as a video line driver. The 23.4-mA total

quiescent current at 3.3 V and 0.1 μA (disabled

mode) makes it a good choice for systems that must

meet power-sensitive Energy Star® standards.

The THS7368 is available in a TSSOP-20 package

that is lead-free and green (RoHS-compliant).