In order to ensure A phase and B phase circuits are symmetric, digital potentiometer X9C503 with exterior pressed key in the feedback amplification circuit is designed.
在反馈放大电路设计时，采用数字电位器X9C503与外部按键配合，达到了A、B两相电路的对称性。
In order to ensure A phase and B phase circuits are symmetric, digital potentiometer X9C503 with exterior pressed key in the feedback amplification circuit is designed.
在反馈放大电路设计时，采用数字电位器X9C503与外部按键配合，达到了A、B两相电路的对称性。
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