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Differential Gain and Phase—Why Measure It, if You Cannot See It?


关键词: DG, DP, differential gain phase, video error, NTSC, TV, invisible amplifier, PAL, subcarrier, ADC, DAC, sweet-spot, linear, linearity, Sallen-Key, filter, video, quality, signal integrity



Abstract: Differential gain and phase (DG and DP) are common video specifications. What are they? Why are they used if they cannot be seen? This application note answers these questions, and explains how these specifications are applied to other nonvideo amplifiers, ADCs, and DACs. 



 Differential Gain and Phase—Why Measure It, if You Cannot See It.pdf