论文部分内容阅读
ULN2204是美国史普拉格公司生产的FM/AM(调频/调幅)集成电路(以下简称IC),它采用了16个脚双列直插式塑料封装结构,只须用少量的外围元件,就可构成一台FM/AM收音机。其性能良好、装配简单、调试方便,只须用一只双刀双掷开关,就可以完成FM/AM工作状态的转换,见图1、图2所示电路。输出功率大(阻抗8Ω时,输出约900mW);耗电省,工作电压范围宽(3～12V);增益高,还具有过载自动保护功能,可直接互换的IC型号列入表1,供参
The ULN2204 is an FM / AM (Frequency Modulation / Amplitude Modulation) integrated circuit (hereinafter referred to as IC) manufactured by the US company Prachagh. It uses a 16-pin dual in-line plastic package structure and requires only a small number of external components Can form a FM / AM radio. Its performance is good, the assembly is simple, easy to debug, just use a double pole double throw switch, you can complete the FM / AM working state conversion, shown in Figure 1, Figure 2 shows the circuit. Output power is large (output impedance is about 900mW when impedance is 8Ω); Power consumption is saved, working voltage range is wide (3 ~ 12V); Gain is high, automatic overload protection function is also available. IC models with direct interchangeable are listed in Table 1 Participation