本文選題：光纖通信　切入點：光電轉(zhuǎn)換　出處：《南京航空航天大學(xué)》2017年碩士論文

【摘要】：近年來集成電路行業(yè)的不斷發(fā)展,隨著微電子技術(shù)尤其是高速信號技術(shù)的飛速發(fā)展和廣泛應(yīng)用,傳輸接口技術(shù)已成為集成電路領(lǐng)域的研究熱點之一。而目前常用的點對點物理接口標(biāo)準(zhǔn)(包括RS-232、RS-485、RS-232、CML、PECL、LVPECL等)在速度、噪聲、功耗、成本等方面存在一定程度的限制,需要尋找一種高速、穩(wěn)定的點對點傳輸接口技術(shù)。在此應(yīng)用背景之下,本文針對傳輸接口技術(shù)研究并設(shè)計了一套基于LVDS的點對點光纖數(shù)據(jù)傳輸系統(tǒng)。本文首先介紹了課題的研究意義及國內(nèi)外背景,對接口技術(shù)的現(xiàn)狀進行了總體分析。通過對比分析了多種電平接口的優(yōu)缺點,并最終采用LVDS電平作為本課題的信號電平,確定了設(shè)計方案。本文還分析介紹了LVDS技術(shù)的基本原理與特點,對電路中的實際應(yīng)用提供理論指導(dǎo)。根據(jù)課題所提出的指標(biāo)要求,研究并設(shè)計了光纖數(shù)據(jù)收發(fā)系統(tǒng)。電路設(shè)計了光纖數(shù)據(jù)收發(fā)系統(tǒng)的多個模塊,包括基于LVDS信號的并串轉(zhuǎn)換模塊、驅(qū)動模塊、信號放大模塊、串并轉(zhuǎn)換模塊。本課題采用cadence設(shè)計平臺完成了從系統(tǒng)原理圖到PCB圖的設(shè)計、繪制與仿真。仿真采用了ADS和cadence相結(jié)合的方法,從傳輸線到傳輸系統(tǒng)由點到面的對電路進行信號完整性仿真。最后,本文根據(jù)設(shè)計制作了PCB板,完成了系統(tǒng)的搭建與調(diào)試,給出了數(shù)字光傳輸系統(tǒng)原理樣機的實驗結(jié)果,并提出了相應(yīng)的改進方案。仿真驗證與實驗測試均表明:本課題所設(shè)計的數(shù)字光傳輸系統(tǒng)原理樣機不僅在幅度、抖動、體積、傳輸距離等指標(biāo)上能夠滿足所提要求,還具有良好的散熱效果及穩(wěn)定性等優(yōu)點。
[Abstract]:With the continuous development of integrated circuit industry in recent years, with the rapid development and wide application of microelectronics technology, especially high-speed signal technology, Transmission interface technology has become one of the research hotspots in the field of integrated circuits, and the commonly used point-to-point physical interface standards (including RS-232U RS-485N RS-232CL-PECL / LVPECL, etc.) have some limitations in speed, noise, power consumption, cost and so on. Need to find a high speed, stable point to point transmission interface technology. In this paper, a point-to-point optical fiber data transmission system based on LVDS is studied and designed. Firstly, the significance of the research and the background at home and abroad are introduced. The current situation of interface technology is analyzed. The advantages and disadvantages of multi-level interface are compared and analyzed. Finally, the LVDS level is adopted as the signal level of this subject. The design scheme is determined. The basic principle and characteristics of LVDS technology are also analyzed and introduced in this paper, which can provide theoretical guidance for practical application of the circuit. The optical fiber data transceiver system is studied and designed. The circuit designs several modules of the optical fiber data transceiver system, including parallel serial conversion module based on LVDS signal, driving module, signal amplifying module. The cadence design platform is used to complete the design from the system schematic diagram to the PCB diagram, drawing and simulation. The method of combining ADS and cadence is used in the simulation. The signal integrity of the circuit is simulated from point to plane from transmission line to transmission system. Finally, the PCB board is made according to the design, the system is built and debugged, and the experimental results of the principle prototype of the digital optical transmission system are given. The simulation and experimental results show that the principle prototype of the digital optical transmission system designed in this paper can not only meet the requirements in terms of amplitude, jitter, volume, transmission distance, etc. It also has the advantages of good heat dissipation effect and stability.
【學(xué)位授予單位】：南京航空航天大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.11

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本文編號：1681771