digital analog interface 中文意思是什麼
digital analog interface
解釋
數模介面-
According to the characteristic of ieee 1394 with wide bandwidth, common and real - time, the author put forward ieee 13 94 should be applied into real - time digital video transfer in optics - electronics theodolite. before engineering realization, carried out a video image transfer test on three types of digital video tape recorders and camera with ieee 1394 interface. we found that digital videos without compression transfered under ieee 1394 standard ( transfer from 4. 5m to 100m ), compared with analog videos, have no geometric distortion, and have better luminance, contrast, definition
作為工程實現前的實驗研究，對三類具有ieee1394介面的數字錄像機和攝像機進行了視頻圖像傳輸實驗，發現無壓縮格式的按ieee1394標準傳輸的數字視頻圖像（傳輸距離從4 . 5米到100米之間） ，較原始模擬視頻圖像在幾何位置信息上沒有衰變，而在亮度、對比度、邊緣清晰度這些方面有明顯的優勢；但是按dvcam壓縮格式（常見于sony公司的系列產品，是5 ： 1的dct幀內壓縮）壓縮的數字視頻圖像，較原始模擬參照圖像有明顯的幾何畸變。 -
The author will research two different realizations : 1 ) to design a can bus interface system based on scm system. this interface system would change the digital commands obtained from the c ' an bus into the analog control signals and send these signals to the existing analog electric servos
這項工作將研究兩種實現方案： 1 ）設計一個基於單片機系統的canbus介面系統，用來將can總線上的數字指令轉換為模擬控制信號，送給已有的電動伺服模擬控制系統。 -
The author will research two different realizations : 1 ) to design and realized a can bus interface system based on scm system. this interface system would change the digital commands obtained from the can bus into the analog control signals and send these signals to the existing analog electric servos
這項工作將研究兩種實現方案： 1 ）設計一個基於dsp的can總線介面系統，用來將can總線上的數字指令轉換為模擬控制信號，送給已有的電動伺服模擬控制系統。 -
After that, based on the datum of the dsp and the correlative chips, the paper designed the key circuit in the data processor module. the design of the interface modules of the control system is the following work. they were the interfaces connecting controller with digital, analog network, and the monitor computer respectively
接下來，設計了系統的整體結構；研究分析了嵌入式控制系統在進行數據處理時所採用的器件以及dsp和相關的晶元資料之後，確定使用tms320vc5402作為系統的數據處理器，設計了數據處理模塊的部分關鍵電路和dsp的16位並口自舉加載方式。 -
Interface of pipeline analog - to - digital converter
新型流水線型模數轉換器的介面技術 -
Finally designs the interface cirvuit with the master control system. the analog singal is isolated by linear optical isolator and the digital signal is isolated by common optical isolator
設計了與主控系統的介面隔離電路，採用線性光耦對模擬信號進行隔離，普通光耦對數字信號進行隔離。 -
Thirdly, the range switch circuit and filter circuit are designed in the analog input channel. to realize the safe high speed acquisition, the interface circuits are separated from the function circuits, and the isolation power with high performance and digital isolator is used to restrain the common mode disturb and noise of the input
3 .模擬輸入通道設計有量程切換電路和濾波電路，並且採用了屏蔽、浮置技術和磁耦隔離技術，使用了高性能的隔離電源和磁電耦合器，有效地抑制了輸入信號的共模干擾和噪聲，實現了安全、高速的數據採集。 -
Computer control is easy through the ieee - 488 interface, or via the second rs - 232 port. since all channels perform their own processing and the i o is handled by the main processor, the power analyzers offer unparalleled interface speed. twelve analog and 16 digital outputs can be set to track and alarm on specific parameter ranges
經由ieee - 488或rs - 232埠可提供簡易的電腦控制，由於所有通道均進行固有的處理及由主處理器管理i 0 ，功率分析儀遂能提供非平行式的介面速度， 12個模擬和16個數字輸出可被設作追蹤與警報特殊參數范圍 -
The system generates 18 kinds of worldwide used hdtv test pattern signals supported by smpte 274m standard, and also provides ypbpr, rgb video outputs both in digit and analog and the output interfaces of itu - r bt. 1120 - 2 / gy / t157 - 2000 studio hdtv digital video signal interface standard
該系統生成了符合smpte274m國際標準的18種普遍採用的hdtv測試圖案信號。它提供ypbpr 、 rgb兩種視頻數字輸出與模擬輸出，其介面符合itu - rbt . 1120 - 2 / gy / t157 - 2000演播室高清晰度數字視頻信號介面標準。 -
Video - process chips on display adapters always have the digital interface which can support the panel monitor, the output port of most of display adapters only offer the analog signal interface
雖然當前計算機顯卡視頻處理晶元中一般都有支持平板顯示器的數字視頻介面，但現在大部分的計算機顯卡的輸出仍然只提供模擬信號介面。 -
The system have follow characteristic : we used tlc5540 for digital converter, the maximum conversion rate of the tlc5540 is at least 40 msps ( mega samples per second ), and the typical analog input bandwidth is more than 75mhz. the design between tlc5540 and tms320vc33 interface directly
該系統主要特點如下。我們採用的a d轉換器最高工作頻率可到40mhz 。 tms320vc33和a d之間直接介面，最大限度地發揮了a d轉換器的能力。 -
The hardware designing include the interface with engine controller, such as d / a conversion. we chose the ad75089 which was produced by ad corp. this is a parallel port digital to analog conversion, and i give the presentation about its structure and connection scheme. in order to resolve the contradiction between faster computation and slower display, a buffer storage also needed
第二部分詳細陳述了高速數據傳輸卡的軟、硬體設計過程，硬體設計包括dsp與pci總線的介面、 dsp與外部控制器的介面、以及電路卡上的擴展數據緩沖區的設計，並使用專門的工具軟體protel繪出全部硬體電路的設計原理圖。 -
All digital, with analog user friendly interface
全數位架構，防水式平面觸控面板 -
A / d converter ( adc ) is the key device in the interface between analog and digital system, is widely applied in the field of radar, communication, electronic countermeasure, sonar, satellite, missile, control system, earthquake, medicine, instrument, video device, audio device and so on
A / d轉換器（ adc ）是模擬系統與數字系統介面的關鍵部件，長期以來一直被廣泛應用於雷達、通信、電子對抗、聲納、衛星、導彈、測控系統、地震、醫療、儀器儀表、圖像和音頻等領域。 -
The digital upward frequency conversion is the key element of the waveform synthesis. at the same time, basic theoretical analysis and optimum design are done for pci bus slave interface, fifo, transmit signal processor, digital - to - analog converter and logic control
本文對波形合成技術的核心? ?數字上變頻進行了深入細致的研究和介紹，同時對波形合成器中的pci總線介面、先進先出緩沖器、發射信號處理、數模轉換及邏輯控制等部分進行了分析和優化設計，給出了最佳設計方案。 -
Based on introduction of the isolated analog signal transmission, this paper made analysis and comparison of a variety of isolated technologies, and put forward a novel digital isolating method based on serial interface d / a converter
針對系統在不同模塊之間信號隔離傳輸的問題，對各種模擬信號傳輸的方式進行了性能比較，研究了模擬數字式變換傳輸的方式的各種應用。 -
By using the high - speed, high - resolution and high - performance analog - to - digital converter and the special pci bus interface chip, we complete the design, test and analysis of the this sampling system
採用高速高精度a / d器件和pci總線專用介面晶元，完成了基於pci總線的高速高精度信號採集系統的設計和調試分析。 -
According to the project of the interfacing experimental apparatus, the hardware circuit of the control system with 89c51 single - chip microcomputer has been designed, which include the circuit from analog signal to digital signals and the circuit from digital signals to analog signals, the drive circuit of the electromagnetism ~ valve and servo - valve, the communication interface circuit between the single - chip microcomputer and pc and so on
對針對接實驗裝置的方案，設計了基於89c51單片機的控制系統硬體電路，其中包括a d轉換電路、 d a轉換電路、伺服閥驅動電路、電磁閥驅動電路、 pc機與單片機之間通訊的介面電路等，並完成了控制系統硬體電路的調試。 -
Chapter one introduces the recent development of usb2. 0 and the overall architecture of transceiver interface ; chapter two proposes the design flow and design style ; chapter three presents the whole system and module partition ; chapter four emphasizes on the dual - mode transmitter circuit, and gives out the simulation waveforms ; chapter five focuses on the design of over - sampling receiver and dll ( delay locked loop ) module ; chapter six designs the band - gap reference circuit. in the end, it concludes the design, and estimates the trend of usb. the dissertation is emphasized on dual - mode transmitter architecture, implementation of high speed dll using dba ( digital - based analog ) technology and a new design methodology for complex digital modules in mixed - signal circuit
本文第一章介紹了usb2 . 0的發展現狀和收發器介面晶元系統；第二章介紹了該晶元的設計流程和風格；第三章介紹了該介面晶元的總體構架以及模塊劃分；第四章著重介紹雙模發送器電路設計並給出了模擬驗證波形；接下來第五章分析了過采樣接收器的設計並對其中的dll （ delaylockedloop ）模塊設計進行了詳細的分析；第六章介紹了本晶元內置的基準電壓源的設計；最後對本文的設計一個總的回顧和總結，並展望下一代usb的發展方向。 -
As a result, it is necessary to add a digital interface to trng which is realized by analog circuit
因此就需要為以模擬電路為核心的真隨機數發生器添加數字介面，以符合規定的總線協議標準。
分享友人