论文部分内容阅读
图1中的电路在100H_Z到20kH_Z音频范围内至少可以降低35dB的噪声或交流声。该电路为便携应用如蜂窝电话和多媒体笔记本型计算机,提供驱动音频电路的纯净的5V电源。大多数线性调节器抑制噪声仅到大约100H_Z,
The circuit in Figure 1 can reduce noise or hum of at least 35dB over the 100H_Z to 20kH_Z audio range. The circuit for portable applications such as cellular phones and multimedia notebook computers, providing a pure 5V drive audio circuit. Most linear regulators suppress noise to only about 100H_Z,