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本文提出一种方法——正弦波的互调测试方法。叙述了实际的测量步骤,并给出了市售音频功率放大器和集成运算放大器的测量结果。往往看到一些总谐波失真指标和 SMPTE 互调失真指标都极好的放大器而具有明显的瞬态互调失真。讨论了本方法与用其它方法,例如 CCIF 互调法和噪声传输法测得的结果的相互关系,讨论了这些测量与转换速率、功率带宽的相互关系。
This paper presents a method - sine wave intermodulation test method. Describes the actual measurement steps and gives the measurements of commercially available audio power amplifiers and integrated op amps. Often see some total harmonic distortion indicators and SMPTE intermodulation distortion indicators are excellent amplifiers with significant transient intermodulation distortion. The relationship between this method and other methods, such as the CCIF intermodulation method and the noise transmission method, is discussed. The relationship between these measurements and the slew rate and power bandwidth is discussed.