基于通用集成运算放大器，利用MASON公式设计了一个多功能二阶通用滤波器，能同时或分别实现低通、高通和带通滤波，也能设计成一个正交振荡器。电路的极点频率和品质因数能够独立、精确地调节。电路使用4个集成运放、2个电容和11个电阻，所有集成运放的反相端虚地。利用计算机仿真电路的通用滤波功能、极点频率和品质因数的独立控制和正交正弦振荡，从而证明该滤波器正确有效。 Abstract: A new multifunctional second-order filter based on OPs was presented by MASON formula. Functions， such as high-pass， band-pass， low-pass filtering， can be Realized respectively and simultaneously， and can become a quadrature oscillator by modifying resistance ratio. Its pole angular frequency and quality factor can be tuned accurately and independently. The circuit presented contains four OPs， two capacitors， and eleven resistances， and inverting input of all OPs is virtual ground. Its general filtering， the independent control of pole frequency and quality factor and quadrature sinusoidal oscillation were simulated by computer， and the result shows that the presented circuit is valid and effective.
上传时间： 2013-10-09
上传用户：13788529953
利用EZ-USB接口芯片AN2131Q实现了基于TMS320C5409的水声信号采集及混沌特性研究系统中的高速数据通信，提出了一种采用FIFO缓存芯片实现AN2131Q与TMS320C5409的连接方法，深入研究了EZ-USB序列接口芯片的固件、设备驱动和用户程序开发过程。关键词：AN2131Q; TMS320C5409; IDT72V02；数据通信ABSTRACT: Using AN2131Q as the control chip, the communication between DSP and PC in the underwater acoustic signal acquisition and chaotic characteristics study system is Realized. The method is proposed that using FIFO to realize the connectivity between AN2131Q and TMS320C5409. The development of programming Firmware、device driver and user application are thoroughly researched.Key words: AN2131Q; TMS320C5409; IDT72V02; data communication
上传时间： 2014-04-03
上传用户：hahayou
This software designs the student result management system m ay replace the tedious low effect the manual management, has Realized the result management, the information management and the curriculum manages three big cores functions.
标签： the management software designs
上传时间： 2013-12-15
上传用户：kr770906
This software designs the document management system may replace the tedious low effect the manual management, has used the c language programming, Realized the document input to loan, the information management and the data compilation three big cores function
标签： the management software document
上传时间： 2013-12-20
上传用户：yt1993410
This design calculator uses to controls an attribute value the establishment, function skill and so on compilation, has met the practical requirements. Truly Realized the contact surface succinctly, has been artistic, the function consummated, the unification goal.
标签： establishment calculator attribute controls
上传时间： 2015-09-22
上传用户：Yukiseop
一个新闻管理系统，可实现新闻发表JSP程序。-an information management system that can be Realized news and pictures of JSP procedures.
上传时间： 2015-12-23
上传用户：stella2015
This paper presents a low-power asynchronous implementation of the 80C51 microcontroller. It was Realized in a 0.5 µ m CMOS process and it shows a power advantage of a factor 4 compared to a recent synchronous implementation in the same technology. The chip is fully bit compatible with the synchronous implementation, and timing compatible for external memory access. The circuit is a compiled VLSI-program, using Tangram as VLSI-programming language and the Tangram tool set to compile the design automatically to a standard-cell netlist. This design approach proves to be powerful enough to describe the microcontroller and derive an efficient implementation. Further, it offers the designer the possibility to explore various alternatives in the design space.
标签： microcontroller implementation asynchronous low-power
上传时间： 2016-06-07
上传用户：冇尾飞铊
用fpga实现的DA转换器，有说明和源码，VDHL文件。 A PLD Based Delta-Sigma DAC Delta-Sigma modulation is the simple, yet powerful, technique responsible for the extraordinary performance and low cost of today s audio CD players. The simplest Delta-Sigma DAC consists of a Delta-Sigma modulator and a one bit DAC. Since, both of these components can be Realized using digital circuits, it is possible to implement a low precision Delta-Sigma DAC using a PLD.
上传时间： 2016-06-10
上传用户：bjgaofei
This soucse code is for CodevisionAVR and RF2500 application driver code is all included.The point to point communication is Realized.
标签： code CodevisionAVR application included
上传时间： 2016-06-11
上传用户：
Tanchi She VC + + code game Computer Application of curriculum design By vc + + Tanchi She Realized the game design
标签： Tanchi Application curriculum She
上传时间： 2014-02-06
上传用户：330402686
