| D/A转换在System View环境下的仿真及硬件实现 |
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| 引用本文： | 辜强.D/A转换在System View环境下的仿真及硬件实现[J].电子科技,2015,28(5):43. |
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| 作者姓名： | 辜强 |
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| 作者单位： | (西安电子科技大学 电子信息攻防对抗与仿真重点实验室,陕西 西安 710071) |
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| 摘 要： | 针对模拟信号在传输介质中优于数字信号,而设计数模转换模块。首先用System View对DAC模块进了仿真。然后设计的D/A转换的硬件电路。通过设计了一个前置的串并转换电路,不仅可以实现8位并行数字信号的D/A转换,还可实现8位串口输入数字信号的D/A转换。在输出端,接入一个有源二阶低通滤波电路,使模拟输出更为平滑。达到了在实际范围内较低波形衰减的目的。
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| 关 键 词： | D A转换 权电流 串并转换 低通滤波 |
Simulation and Hardware Implementation of D/A Conversion in System View Environment |
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| GU Qiang.Simulation and Hardware Implementation of D/A Conversion in System View Environment[J].Electronic Science and Technology,2015,28(5):43. |
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| Authors: | GU Qiang |
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| Affiliation: | (Key Laboratory of Electronic Information Countermeasure and Simulation,Xidian University,Xi'an 710071,China) |
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| Abstract: | The analog signal is better than the digital signal in the transmission medium,so a digital to analog converter is designed.System View is used to simulate the DAC module.Then the D/A conversion hardware circuit is designed.A front end parallel/serial conversion circuit is designed,which makes possible D/A conversion of both 8 bit parallel digital signals and 8 bit serial digital signals.On the output side,an active second order low pass filter circuit is included so the analog output is smoother.Lower waveform attenuation within the practical range is achieved. |
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| Keywords: | DAC power current series and transforms low pass filter |
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