Three SDTV Video Amplifiers for CVBS, S-Video, Y’/P’B/P’R, 480i/576i, Y’U’V’, or G’B’R’
Three 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
Fixed Full-HD Channels: 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: 0.25%/0.4°
APPLICATIONS
Set Top Box Output Video Buffering
PVR/DVDR Output Buffering
BluRay? Output Video Buffer
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Fabricated using the revolutionary, complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7364 is a low-power, single-supply, 2.7-V to 5-V, six-channel integrated video buffer. It incorporates three SDTV filters and three 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 THS7364 has flexible input coupling capabilities, and 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. 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 THS7364 is an ideal choice for a wide range of 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- 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 well-suited for systems that must meet power-sensitive Energy Star standards.
The THS7364 is available in a TSSOP-20 package that is lead-free and green (RoHS-compliant).