Fabricated using the revolutionary, complementary Silicon-Germanium (SiGe) BiCom3X process, the THS7373IPWR 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 THS7373IPWR 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 THS7373IPWR 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 THS7373IPWR is available in a small TSSOP-14 package that is lead-free and green (RoHS-compliant).
Feature
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:
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:
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