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微功率、低电压运算放大器允许我们无需用电池或变压器就能构成高性能模拟信号处理器。而且采用一只电容器作为供电电源。图1所示电路是一个为联接电视拍摄器和录像机的音频编辑而设计的模拟混合器,它可以用如
Micropower, low-voltage op amps allow us to build high-performance analog signal processors without batteries or transformers. And use a capacitor as the power supply. The circuit shown in Figure 1 is an analog mixer designed for audio editing in conjunction with a TV camera and VCR. It can be used, for example,