要：差分增益和相位（ DG和DP ）是常见的视频规格。它们是什么？为什么使用它们，如果他们不能看到呢？本应用笔记中回答了这些问题，并解释如何适用于其他nonvideo放大器，模数转换器和数模转换器（DAC） ，这些规范。Maxim > Design support > App notes > Amplifier and Comparator Circuits > APP 4294 Maxim > Design support > App notes > Automatic Test Equipment (ATE) > APP 4294 Maxim > Design support > App notes > Automotive > APP 4294 Keywords: 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 May 23, 2011 APPLICATION NOTE 4294 Differential Gain and Phase―Why Measure It, if You Cannot See It? By: Bill Laumeister, Strategic Applications Engineer Abstract: Differential gain and phase (DG and DP) are common video specifications. What are they? Why ……