【摘要】 设计并实现了基于数模转换(DAC)R-2R网络的程控放大器和程控滤波器,采用2片8位的DAC0832芯片作为程控电路主体,利用FPGA作为程控放大器及程控滤波器的控制模块,实现了可编程放大参数的设置以及低通和高通滤波截止频率的数字控制。更多还原

【Abstract】 A kind of programmable amplifier and programmable filter based on R-2R network of DAC is designed here,and with two 8-bit DAC0832 chips as the main body of the programmable circuit, applying FPGA as the control module,we realize both the parameter setting and digital control for the cut-off frequency to low and high pass filter.更多还原