The high-speed digital-to-analog conversion circuit is the core of a high-speed audio cassette duplicator. 高频电路,载波电话通路高速的D/A转换电路是高速音频复录设备的核心部分。
With respect to the hardware, the designs of the digital-to-analog conversion circuit and demodulation circuit are completed. 在硬件方面,完成了数模转化电路和解调电路的设计。
The digital-to-analog conversion process reconstructs a staircase version of the desired signal. D/A转换过程重建了阶梯状的通带内信号,须设计一个平滑滤波器,以得到所需的信号。
MDAC has functions of digital-to-analog conversion, subtraction, residue amplification and sample / hold through charge redistribution between input capacitors and feedback capacitors, which simplifies the structure of the ADC. 通过电荷在输入电容和反馈电容之间的重新分配,MDAC可精确地实现减法和余数的放大,同时极大地简化了电路结构。
The control program includes main cycle program, the digital quantity input and output program, the analog-to-digital and digital-to-analog conversion program. 控制部分程序包括主循环程序、数字量输入输出和模数数模转换(DAC)程序等。