Question

翻译 论文 摘要

翻译下面的文字(翻译要正确。用翻译软件、网站翻译的就不要了)
摘要
本文介绍一种基于AT89C51单片机与MAX262芯片的程控滤波器。MAX262为双二阶开关电容有源滤波器，可通过SPI总线精确控制滤波器的传递函数。独立编程设置其中心频率和品质因数实现智能控制。AD603是一种低噪声的可程控集成运算放在器，通过控制VG即可控制放大增益。单片机的ALE引脚产生的信号经分频之后可提供给MAX262作为时钟使用。
该系统设计是由放大器、滤波器、分频器和控制模块等部分构成，采用AD603与MAX262相结合,实现增益设置以及满足高、低滤波参数的要求。
关键词：程控滤波；增益放大；分频；显示

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Answer 1

摘要
本文介绍一种基于AT89C51单片机与MAX262芯片的程控滤波器。MAX262为双二阶开关电容有源滤波器，可通过SPI总线精确控制滤波器的传递函数。独立编程设置其中心频率和品质因数实现智能控制。AD603是一种低噪声的可程控集成运算放在器，通过控制VG即可控制放大增益。单片机的ALE引脚产生的信号经分频之后可提供给MAX262作为时钟使用。
该系统设计是由放大器、滤波器、分频器和控制模块等部分构成，采用AD603与MAX262相结合,实现增益设置以及满足高、低滤波参数的要求。
关键词：程控滤波；增益放大；分频；显示

Abstract
This article describes a programmable filter based on AT89C51 microcontroller and MAX262 chip. MAX262 is a dual second-order switched capacitor active filter, of which transfer function can be precisely controlled via SPI bus and which can be smartly controlled via independent programming by setting center-frequency and quality factor. AD603 is a low-noise programmable and integrated operational amplifier, with amplification gain regulated by controlling VG. Signals generated on ALE pin of the microcontroller can be provided to MAX262 for clock use.
The system is composed of amplifiers, filters, frequency divider, and control modules, using AD603 and MAX262 combined to realize gain setting and meet the high- and low-filter parameters required.
Keywords: programmable filtering; gain amplification; frequency division; display

Answer 2

This article describes a AT89C51 microcontroller with MAX262 chip-based programmable filters. MAX262 is a two-second order switched-capacitor filter, you can preciselycontrol the filter transfer function through SPI bus. Independent programming set Center frequency and quality factors to achieve intelligent control. AD603 is a low-noise programmable integrated operations manager, can be controlled by controlling the VG amplifier gain. ALE pins of the microcontroller is made available to the MAX262 as the clock after the signal frequency used.

或 This article introduces one kind based on at89C51 monolithic integrated circuit and the MAX262 chip program control filter. MAX262 is the pair of two step switch electric capacity active filter, may through the SPI main line accuracy control filter's transfer function. The independent programming establishes its center frequency and the quality factor realizes the intelligent control. AD603 is one kind of low noise may the program control integration operation place, through controls VG then to control the enlargement gain. Monolithic integrated circuit's ALE pin produces signal after the frequency division may provide for MAX262 takes the clock use. This system design is by part constitutions and so on amplifier, filter, frequency divider and control module, uses AD603 and MAX262 unifies, realizes the gain to establish as well as to satisfy high, the low filter parameter request. Key word: Program control filter; Gain amplification; Frequency division; Demonstration