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DAC0808: 高频时输出信号失真

Part Number: DAC0808

原理图如下所示:1KHz以内的DA输出值基本正常,但输出会产生振铃现象。高频之后(50KHz以上)输出信号完全失真,请教下各位工程师大概是什么原因导致的此问题,改进方向在哪?