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Filters

Filters Maxim offers low-pass filters specifically designed for standard-definition (SDTV), extended-definition (EDTV), and high-definition (HDTV) resolutions. All of the video filters have integrated amplifiers with gain from 2V/V to 4V/V.

When the low-pass filter is placed before an analog-to-digital converter (ADC), then it serves as an anti-alias filter to remove high-frequency noise above the Nyquist frequency. When it is placed after the digital-to-analog converter (DAC), then it serves as a reconstruction filter to remove images at harmonics of the DAC sample clock.

Filters Selection Guide
  SDTV (480i) EDTV (480p) HDTV (1080i30)
1 Channel ≤3.3V5V    
2 Channels 3.3V5V    
3 Channels 3.3V5V 5V 3.3V5V
4 Channels 3.3V5V 3.3V  

See a table of all Video Filters

Application Notes
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