1、 摘 要 Multisim 是美国国家仪器(NI) 有限公司推出的以 Windows 为基础的 仿真工具,适用于初级的模拟/数字电路板的设计工作,包含电路原理图图形 及电路硬件描述语言的输入方式,具有丰富的仿真分析能力。 模拟乘法器是一种完成两个模拟信号(电压或电流)相乘作用的电子器件。 它具有两个输入端对和一个输出端对,是三端对有源器件。 主要内容为基于 Multisim 的模拟乘法器应用设计与仿真。阐述了双边带调幅 及普通调幅、同步检波、混频、乘积型鉴相电路的原理,并在电路设计与仿真平 台 Multisim11 仿真环境中创建集成模拟乘法器 MC1496 电路模块,利用模拟乘法 器 MC1
2、496 完成各项电路的设计与仿真, 并结合 LabVIEW 虚拟仪器实现对语音信 号的普通调幅及解调。 关键词:Multisim;模拟乘法器 ;MC1496 Abstract Multisim introduced by United States National Instruments(NI) Limited company is a Windows-based simulation tool, suitable for design elementary analog / digital circuit, contains a circuit theory of diagram and
3、the circuit hardware description language input methods, with extensive simulation analysis. Analog multiplier is a complete two analog signals (voltage or current) multiplied by the role of electronic devices. It has two inputs and one output on the right, yes three-terminal on the active device. T
4、he main content is that analog multiplier multisim-based application design and simulation. Describe some circuits theory, such as Double Side Band amplitude modulation and common amplitude modulation、 synchronous detection、 mixing、 product type phase. Create the integrated circuit analog multiplier MC1496 module in simulation platform Multisim11 simulation environment, make use of the analog multiplier MC1496 module complete circuit design and simulation, combined with labVIEW fictitious ins