外文翻譯-基于c8051單片機的雙相信號發(fā)生器軟件設(shè)計-單片機-全文預(yù)覽
【正文】 gnal generator, which uses a frequency selective circuit to generate sine vibration, to obtain the necessary frequency. But can also Synthesis technology to obtain the necessary 9 rate. Frequency of use of technology into the signal generator, often referred to as synthetic signal generator. 3 The implementation methods of signal generator The realization of the function signal generator method usually have the following kinds: (1) the ponents with division: it is usually function generator single function generator and frequency is not high, its work is not very stable, not easy debugging. (2) can be made by the transistor, the opamp IC etc, more universal device is made with special function signal generator IC produce. Early function signal generator IC, such as L8038, BA205, XR2207/2209 etc, the functions of them less, precision, frequency cap 300kHz, unable to produce only higher frequency of signal, adjust the way also not enough flexibility, frequency and occupies emptiespared to cannot independent regulation, both affecting each other. (3) use monolithic integrated chip function generator: can produce various waveform, achieve the high frequency, and easy to debug. In view of this, the American beauty developed a new generation letter ICMAX038 function signal generator, it overes the (2) chip shortings, can achieve higher technical index, is the chip deficits. MAX038 frequency and high accuracy, good, therefore it is called a highfrequency precision function signal generator IC. In PLL, vco, frequency synthesizer, pulse width omdulatros etc circuit design, selection of devices are MAX038. Author: , Nationality: British Source: : / / / download / file2020 1 關(guān)于傳統(tǒng)信號發(fā)生器的簡介 (譯文 1)摘要 在 21 世紀(jì)的今天，信號發(fā)生器獲得了廣泛的應(yīng)用和快速的發(fā)展信號發(fā)生器作為電子技術(shù)領(lǐng)域中最基本的電子儀器，廣泛應(yīng)用于航空航天測控、通信系統(tǒng)、電子對抗、電子測量、科研等各個領(lǐng)域中。隨著通信和雷達技術(shù)的發(fā)展， 40年代出現(xiàn)了主要用于測試各種接收機的標(biāo)準(zhǔn)信號發(fā)生器，使信號發(fā)生器 從定性分析的測試儀器發(fā)展成定量分析的測量儀器。 自 60 年代以來信號發(fā)生器有了迅速的發(fā)展，出現(xiàn)了函數(shù)發(fā)生器，這個時期的信號發(fā)生器多采用模擬電子技術(shù)，由分立元件或模擬集成電路構(gòu)成，其電路結(jié)構(gòu)復(fù)雜，且僅能產(chǎn)生正弦波、方波、鋸齒波和三角波等幾種簡單波形，由于模擬電路的漂移較大，使其輸出的波形的幅度穩(wěn)定性差，而且模擬器件構(gòu)成的電路存在著尺寸大、價格貴、功耗大等缺點，并且要產(chǎn)生較為復(fù)雜的信號波形則電路結(jié)構(gòu)非常復(fù)雜。 2 信號發(fā)生器的分類 隨著現(xiàn)代電子、計算機和信號處理等技術(shù)的發(fā)展，極大促進了數(shù)字化技術(shù)在電子測量儀器中的應(yīng)用
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