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技术资料 如何设计一个兼容AD1845和 CS4231编解码器的印刷电路板
This application note shows designers how to put a“socket” in their PC motherboard or plug-in ca
模拟电子 利用数字电位器调整并校准升压型DC-DC转换器
The purpose of this application note is to show an example of how a digital potentiometer can be used in thefeedback loop of a step-up DC-DC converter to provide calibration and/or adjustment of the output voltage.The example circuit uses a MAX5025 step-up DC-DC converter (capable of generating up ...
技术资料 对讲机知识
RF收发芯片：RDA1845/RDA1846/RDA1846S/4811集成密度高，集成了话放调制电路/VCO电路/接收后级电路音频功放芯片：2822/4871/386/7368作音频信号放大，放大后驱动扬声器发出语音报频声音功率管：RQA0008/RQA0009/2SK3476发射电路信号放大器锁相环：8308/31202VCO电路的核心部件包括了基准振荡分频器、相位比较器的集成电路， ...