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单片高精度的电压-频率和频率-电压转换器(5GVFC32)是上海元件五厂最新开发的新品,该电路能将模拟信号转换成数字式脉冲信号(简称V/F),也能将数字脉冲信号转换成模拟信号(简称F/V),其性能和管脚排列与国外同类产品相同,可以互换使用。该电路最大特点是;外接元件少,只需要两个电阻和两个电容就能独立工作。满度频率与输入电压的关系只要确定一个电阻和两只电容的数值即可方便调节。精度高,当满度频率为10KHz时,其线性误差可达±0.005％FSR。输入方式可以电压输入或电流输入。动态范围为6位十进制数。输出为集电极开路输出,所以能与DTL、TTL、CMOS兼容。压控振荡器,常见的有单积分和双积分两种方式。5GVFC32采用的是单积分方式,并且采用固定
The monolithic high-precision voltage-frequency and frequency-to-voltage converter (5GVFC32) is a new product developed by Shanghai No.5 Factory. The circuit can convert analog signals into digital pulse signals (V / F for short) and digital Pulse signal is converted into analog signal (referred to as F / V), its performance and pin arrangement with the same foreign products, can be used interchangeably. The circuit is characterized by the most; external components, only two resistors and two capacitors will be able to work independently. Full-scale frequency and input voltage relationship as long as the determination of a resistor and the value of two capacitors can be easily adjusted. High accuracy, when the full frequency of 10KHz, the linearity error of up to ± 0.005% FSR. Input mode can be voltage input or current input. Dynamic range is 6 decimal digits. The output is open-collector output, so it can be compatible with DTL, TTL and CMOS. Voltage-controlled oscillator, common single and double integration of two ways. 5GVFC32 uses a single integral method, and fixed