说明：  本系统是以FPGA（EP2C8Q240C8）为控制核心，由压控振荡器、PLL倍频器、高频功率放大器、遥控器及LCD显示模块组成的压控LC振荡器。能实现输出正弦波频率在15MHZ~35MHZ步进可调，其最小步进为5002HZ，频率稳定度为10-5。当输出信号的频率为30MHZ、峰峰值稳定在1V左右时，在+12V单电源工作的情况下，功率放大器能实现在50Ω纯阻性和50Ω+20pf容性负载上输出功率大于20mw。LCD显示模块能实时显示输出信号的峰峰值和频率，精度由于10 。
(This system is based on FPGA ( EP2C8Q240C8 ) as the control core, by a voltage controlled oscillator, PLL multiplier, high frequency power amplifier, remote control and LCD display module comprising a voltage-controlled LC oscillator. Can realize the output sine wave frequency in the step 15MHZ~35MHZ is adjustable, the smallest Bu Jin 5002HZ, frequency stability 10-5. When the frequency of the output signal is 30MHZ, peak stable at about 1V, in+12V single supply situation, the power amplifier can be realized in 50 Ωto 50 Ω+20pf pure resistive and capacitive load on the output power is greater than 20mw. LCD display module can display the output signal and the peak frequency, precision due to 10 .)