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.
By Key Parameter
|SDTV (480i)||EDTV (480p)|
|3 Channel||3.3V, 5V||3.3V|
|4 Channel||3.3V, 5V|
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