关键字： 热释电红外传感器；前置放大电路；红外报警器 [gap=4848]Keywords： Pyriekectric Infrared Sensor； Pre-amplifier Circuit； Infrared Alarm
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pre-amplifier printed circuit board 前置放大器印刷电路板
This paper simply analyzes pulse generating circuit, pre amplifier, power amplifier through examples.
通过实例对脉冲发生、预放(驱动)、功放电路进行了简要分析。
The whole circuit includes memory array, decode, sense amplifier, data in - out circuit and pre - charge circuit.
电路包括存储阵列、译码电路、敏感放大器、数据输入输出电路，预充电电路等部分。
The noise function of pre - amplifier is also studied. Some low noise circuit design criteria are concluded .
通过对嗓声系数特性的研究，总结了前置放大电路低噪声设计准则。
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