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Video Filter Drivers
Audio Line Drivers

TPF133A - Low Power, 3-channel Video Filter for HD Video


  3-HDTV Video Filter SupportY'Pb'Pr'-1080i/720p, R'G'B'or VGA/SVGA/XGA

 Optimized 6th-order Butterworth Video reconstruction filter:
       HD Channel: -3dB ≥ 36MHz

  Support Multiple Input Biasing:

       —   Provide 80-mV Level-Shift when DC-Coupled

       —  Transparent Input Clamping when AC-Coupled

       —  Support External DC Biasing when AC-Coupled

  Very Low Quiescent Current: 11.7 mA(at 3.3V, Typical)

 6dB Gain(2V/V), Rail TORail Output

 AC- or DC-Coupled Output Driving Dual Video Loads (75Ω)

 Wide Power Supply: +3.0V to +5.5V Single Supply

 Robust ESDProtection:

      —  Robust 8kV – HBM and 2kV – CDM ESD Rating

 Green Product, SOIC-8 Package

Typical Application


TPF133A is a specially designed for consumer applications,high-performance, low-cost video reconstruction filter, it combine excellentvideo performance and low power consumption perfectly. It incorporates threehigh-definition (HD) filter channels. All filters feature sixth-orderButterworth 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 filters. TheHD filters can be bypassed to support 1080p60 video or up to quad extendedgraphics array (QXGA) RGB video.

As part of the TP133A flexibility, the input can be configured for ac- ordc-coupled inputs. The 84-mV output level shift allows for a full sync dynamicrange at the output with 0-V input. The ac-coupled modes include a transparentsync-tip clamp option for Y', and G'B'R' signals. AC- coupled biasing forC'/P'B/P'R channels can easily be achieved by adding an external resistor toVS+.

The TP133A rail-to-rail output stage with 6-dB gain allows for both ac anddc line driving. The ability to drive two lines, or 75-Ω loads, allows formaximum flexibility as a video line driver. The 27.6-mA total quiescent currentat 3.3 V makes it an excellent choice for power-sensitive video applications.

TPF133A isavailable in SOIC-8 package. Its operation temperature range is from −40°C to +85°C.


 Video Signal Amplification

 Set-Top Box Video Driver

 PVR、DVD Player Video Buffer

 Video Buffer for Portable or USB-Powered Video Devices