Description: 可程控开关电容滤波器设计的三部分代码。用到的芯片有AT89C2051、MAX261等。-programmable switched-capacitor filter design of the three-part code. The chip is used AT89C2051, MAX261, and so on. Platform: |
Size: 2950 |
Author:杨武马 |
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Description: 可程控开关电容滤波器设计的三部分代码。用到的芯片有AT89C2051、MAX261等。-programmable switched-capacitor filter design of the three-part code. The chip is used AT89C2051, MAX261, and so on. Platform: |
Size: 3072 |
Author:杨武马 |
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Description: 程控滤波器论文。实现了步进为10dB的0到60dB的可调增益。滤波器部分以可编程开关电容滤波器MAX262芯片为核心，实现了截止频率1KHZ-20KHZ步进1HZ可调的程控滤波器，各项误差低于5％。-Program-controlled filter papers. To realize a step from 0 to 60dB in 10dB of adjustable gain. Filter part of programmable switched capacitor filter MAX262 chip as the core, realize the cut-off frequency 1Hz step 1KHZ-20KHZ program adjustable filter, the error of less than 5. Platform: |
Size: 108544 |
Author:仙儿 |
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Description: MAX262中文PDF，用于对程控滤波器的开发-The MAX260/MAX261/MAX262 CMOS dual secondorder
universal switched-capacitor active filters allow
microprocessor control of precise filter functions. No
external components are required for a variety of bandpass,
lowpass, highpass, notch, and allpass configurations.
Each device contains two second-order filter
sections that place center frequency, Q, and filter operating
mode under programmed control. Platform: |
Size: 640000 |
Author:shenglinfeng |
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Description: MAX260/261/262是MAXIM公司推出的可编程开关电容通用滤波器，通过单片机（89C51）对该芯片的6个输入端进行有效设置可实现64个不同的中心频率f0，而且Q值可达128。文中介绍了这些通用滤波器的功能、特性以及典型应用电路。 -MAXIM Unveils MAX260/261/262 is programmable general-purpose switched-capacitor filter, through the single-chip microcomputer (89C51) chips of the six inputs can be effectively set up 64 different center frequency f0, and the Q value up to 128. In this paper, the generic filter functions, characteristics and typical application circuit. : Platform: |
Size: 1321984 |
Author:zhanxiaohong |
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Description: ：简介了研制的随机振动信号处理虚拟仪器系统的组成。叙述了其中的抗混滤波器的作用与要
求，并在分析8 阶低通椭圆开关电容滤波器（MAX293 ）性能的基础上，研制了基于MAX293 的抗混滤
波器。尤其对遇到的“共振”现象作出了理论分析及实验验证，同时给出了解决方法。该抗混滤波器具
有电路简单、变带宽方便、过渡带衰减迅速等优点-The composition of the developed virtual instrument system of processing a random
vibration signal is introduced. The action and demand of the anti alias filter in the system are
recounted. After analyzing the 8-order low pass elliptic switched capacitor filter (MAX293), the anti
alias filter is developed based on it. Specifically, the“ resonance”phenomenon is analyzed theoretically
and the analysis is proved by the experiment. The“ resonance”is avoided. The anti
alias filter has the performance of the circuit being simple, the change of the pass band convenient,
and the attenuation of the transition band sharp Platform: |
Size: 48128 |
Author:张雨 |
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Description: The MT8870D/MT8870D-1 is a complete DTMF
receiver integrating both the bandsplit filter and
digital decoder functions. The filter section uses
switched capacitor techniques for high and low
group filters the decoder uses digital counting
techniques to detect and decode all 16 DTMF tonepairs
into a 4-bit code. External component count is
minimized by on chip provision of a differential input
amplifier, clock oscillator and latched three-state bus
interface.-The MT8870D/MT8870D-1 is a complete DTMF
receiver integrating both the bandsplit filter and
digital decoder functions. The filter section uses
switched capacitor techniques for high and low
group filters the decoder uses digital counting
techniques to detect and decode all 16 DTMF tonepairs
into a 4-bit code. External component count is
minimized by on chip provision of a differential input
amplifier, clock oscillator and latched three-state bus
interface. Platform: |
Size: 212992 |
Author:far |
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Description: 在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案-The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program Platform: |
Size: 238592 |
Author:wm1630 |
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Description: 基于MAX261可编程通用开关电容有源滤波器及应用，很少见-MAX261 switched-capacitor based active filter programmable general purpose and application of rare Platform: |
Size: 166912 |
Author:周圣宇 |
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Description: 引脚可编程的开关电容滤波器MAX264内部集成了滤波器所需的电阻、电容．无需外接器件，且其中心频率、Q值及工作模式都可通过引脚编程设置进行控制。MAX264可工作于带通、低通、高通、带陷或是全通模式下，其通带截止频率可达140 kHz。
-Abstract：The design of the digital programmable filter which mainly consists of variable——gain amplifier
AD603 and a universal switched—capacitor active filter MAX264 is introduced in the paper Platform: |
Size: 159744 |
Author:丑小鸭 |
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Description: 各种滤波器程序，电路图，技术资料。重点介绍了TIc04I开关电容的应用的用法，还有中英文资料。-Various filter programs, schematics, technical information. TIc04I highlighted the use of switched-capacitor applications, as well as in Chinese and English information. Platform: |
Size: 2539520 |
Author:xiaochun |
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Description: MAX262是CMOS双二阶通用开关电容有源滤波器，由微处理器精确控制滤波函数。可构成各种带通、低通、高通、陷波和全通配置，且不需外部元件。每个MAX262器件含有两个二阶滤波器，在程序控制下设置中心频率f0、品质因数Q和滤波器工作方式。包括MAX262详细说明，工作方式，滤波器设计过程，应用举例，设计举例。 -MAX262 is a CMOS switched-capacitor general biquad active filter, filter function by the precise control of the microprocessor. May constitute a variety of band-pass, low pass, high pass, notch and all-pass configuration, and no external components. Each MAX262 device consists of two second-order filters, under program control to set the center frequency f0, the quality factor Q, and filter work. Including MAX262 details, work methods, filter design, application examples, design examples. Platform: |
Size: 2262016 |
Author:闫空间 |
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Description: 滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。-Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for Platform: |
Size: 1635328 |
Author:黄倩 |
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Description: 本系统用引脚可编程开关电容滤波器MAX264来实现程控滤波器，利用DDS产生精确外部时钟来实现fc在1KHz到40KHz步进可调。-The system uses pin-programmable switched-capacitor filter to achieve the programmed filter MAX264, use DDS to generate accurate external clock to achieve fc at 1KHz to 40KHz step adjustable. Platform: |
Size: 75776 |
Author:李寒 |
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Description: 基于HSPICE 的开关电容滤波器仿真程序，直接用HSPICE软件打开即可-HSPICE-based switched capacitor filter simulation program can be opened directly by HSPICE software Platform: |
Size: 296960 |
Author:cici |
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