Fabricated using the revolutionary, complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7373 is a low-power, single-supply, 3-V to 5-V, four-channel integrated video buffer. It incorporates one standard-definition (CVBS) and three high-definition (HD) filter channels. All filters feature 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 HD filters can be bypassed to support 1080p60 video or up to quad extended graphics array (QXGA) RGB video.
●As part of the THS7373 flexibility, the input can be configured for 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 composite video (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 THS7373 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 16.2-mA total quiescent current at 3.3 V and 0.1 µA (disabled mode) makes it an excellent choice for power-sensitive video applications.
●The THS7373 is available in a small TSSOP-14 package that is lead-free and green (RoHS-compliant).
● One SDTV Video Amplifier for CVBS Video
● Three HDTV Video Amplifiers for Y’/P’B/P’R, 720p/1080i/1080p30, or G’B’R’ (R’G’B’)
● Sixth-Order Low-Pass Filters:
● CVBS Channel: –3 dB at 9.5-MHz
● HD Channels: –3 dB at 36-MHz with 350-MHz Bypass for 1080p60 Support
● Versatile Input Biasing:
● DC-Coupled with 300-mV Output Shift
● AC-Coupled with Sync-Tip Clamp
● Allows AC-Coupling with Biasing
● Built-in 6-dB Gain (2 V/V)
● +3-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: 16.2 mA at 3.3 V
● Disabled Supply Current Function: 0.1 µA
● Low Differential Gain/Phase: 0.15%/0.25°
● RoHS-Compliant Package: TSSOP-14
