共查询到20条相似文献,搜索用时 109 毫秒
1.
直接耦合场效应逻辑(DCFL)具有简单的结构、良好的速度/功耗性能,是GaAsFETLSI电路中一种重要的逻辑形式。传统E/D型DCFL电路具有较低的成品率和较差的温度特性,本文研究了改进的E/E型DCFL电路。对E/D、E/E型DCFL电路的直流、瞬态及温度特性进行了分析、模拟和比较,E/E逻辑具有良好的高温性能。经优化设计,最后制作出单门延迟约100ps、单门功耗约1mW的E/D和E/E型DCFL电路,且E/E型电路较E/D型电路具有更高的成品率。 相似文献
2.
本文讨论了GaAs电路和SiECL电路的输入输出接口问题,对GaAs电路中BFL、DCFL、SDFL等电路形式的典型输入输出接口电路进行了分析研究,用电路模拟程序计算并给出了BFL输入输出接口电路的转移特性曲线。 相似文献
3.
直接耦合场效应逻辑(DCFL)具有简单的结构、良好的速度/功耗性能,是GaAs FETLSI电路中一种重要的逻辑形式。传统E/D型DCFL电路具有较低的成品率和较差的温度特性,本文研究了改进的E/E型DCFL电路。对E/D、E/E型DCFL电路的直流、瞬态及温度特性进行了分析、模拟和比较,E/E逻辑具有良好的高温性能。经优化设计,最后制作出单门延迟的100ps、单门功耗的1mW的E/D和E/E型D 相似文献
4.
5.
索尼公司开发新型5.6英寸多晶硅TFT-LCD模块日本索尼公司已开发成功内置驱动电路的新型5.6英寸多晶硅(P-Si)彩色薄膜晶体管液晶显示(TFT-LCD)模块。与非晶硅(a-Si)TFT—LCD模块相比,它有两个突出优点:其一是每个象素上的TFT... 相似文献
6.
采用先进驱动电路的TFT LCD日本电气公司应用先进驱动电路研制成功一种全模拟色彩13英寸薄膜晶体管(TFT)液晶显示器(LCD),分辨率高达1280x1024像素。新驱动器用模拟信号转换技术代替了一般数字技术。这项技术的核心是控制显示器所要求的10... 相似文献
7.
开关级快速时域模拟器FTSIM,可对MOS LSI/VLSI数字电路进行逻辑功能和时间特性的模拟与验证。基于波形松弛算法,FTSIM首先将电路分解成直流连通单元(DCC),然后利用晶体管非线性模型按一定次序计算每个DCC的输出波形。在求解该模型特征方程的过程中,采用了电压步进方法,同时提出了处理DCC之间反馈问题的事件驱动自适应窗口算法。FTSIM可以充分利用电路的多速率特性和各类休眠特性来提高分 相似文献
8.
吸收光栅增益耦合DFB—LD电路模型 总被引:2,自引:1,他引:1
本文以激光器单模速率方程为基础,针对DFB-LD推导了光子寿命与激光器内部损耗及端面出射损耗的关系,以及端面出射光功率与平均光子密度的关系,给出吸收光栅增益耦合DFBLD电路模型,用该模型研究了AG-GC-DFB-LD的自脉动效应及影响自脉动幅度和频率的主要因素。 相似文献
9.
本文在PSPICE电路模拟的基础上设计了一套GaAs IC对阈值电压均匀性要求的计算方法,并计算三种不同GaAs IC对阈值对电压均匀性的要求,结果表明,SDFL对阈值电压均匀性的要求较低,σVth为218mV,DCFL和BDCFL对阈值电压均匀性要求较高,σVth分别为38mV和35mV。模拟计算还提出;优化和未优化的电路对阈值电压均匀性的要求不同;工艺不同,电路对阈值电压均匀性的要求也不同。这 相似文献
10.
11.
《Solid-State Circuits, IEEE Journal of》1979,14(2):221-239
Recent advances of GaAs integrated circuit fabrication technology have made possible the demonstration of ultrahigh performance GaAs digital ICs with up to 64 gate MSI circuit complexities and with gate areas and power dissipations sufficiently low to make VLSI circuits achievable. The authors evaluate, based on the current state of GaAs IC technology and the fundamental device physics involved, the prospects of achieving an ultrahigh-speed VLSI GaAs IC technology. GaAs IC fabrication and logic circuit approaches is reviewed. The experimental performance results are compared for the leading GaAs logic circuit approaches, both for simple ring oscillators and for more complex sequential logic circuits. 相似文献
12.
介绍了GaAs大功率器件内匹配技术的基本原理,包括匹配电路原理、内匹配元件的参数计算方法等.以C波段40 W大功率器件为例讲述了内匹配技术在GaAs功率器件设计中的应用.通过大信号建模获得大栅宽器件模型,通过ADS软件进行内匹配电路参数的优化计算.通过电路制作及调试,实现了大功率器件的性能.经测试,当器件Vds=9 V时,在5.2~5.8 GHz频段内,输出功率Po≥40 W,功率增益Gp≥9 dB.测量值和设计值基本吻合. 相似文献
13.
GaAs HBT's for analog circuits 总被引:1,自引:0,他引:1
Oyama B.K. Wong B.P. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1993,81(12):1744-1761
Silicon bipolar integrated circuit (IC) technology has dominated the analog IC world for over two decades. As the push for wider bandwidths with higher precision continues, the emergence of GaAs HBT technology is destined to challenge silicon bipolar's domination at the high end of the analog market. This paper discusses the analog application areas best suited to GaAs HBT technology, points out its unique characteristics for analog circuits, describes the design issues for key analog building block circuits, and provides comparative examples of demonstrated state-of-the-art analog circuits. Finally, a projection of future direction in this application area is provided 相似文献
14.
15.
16.
《Microwave Theory and Techniques》1987,35(3):245-259
This paper, which is a tutorial on high-speed GaAs digital IC's, was given as one of the 1984-1985 MTT-S Distinguished Microwave Lectures. It reviews GaAs FET technology and issues related to device/ circuit design and fabrication of digital circnits of MSI/LSI complexity operating at gigahertz clock frequencies; discusses limitations of the technology; compares GaAs technology with competing Si bipolar transistors, GaAIAs HEMT, and GaAIAs HBT technologies and projects performance of GaAs digital IC technology in applications where it will have a significant impact on microwave systems. 相似文献
17.
Fobelets K. Jeamsaksiri W. Hampson J. Toumazou C. Thornton T. 《Electronics letters》1998,34(22):2076-2077
Measurements of the DC characteristics of a negative inverting, voltage-following current mirror are presented. The circuit design uses prototype n-depletion mode, modulation doped field effect transistors employing Si:SiGe heterojunction technology and is based on recently established circuit design techniques for GaAs MESFET technology. The results show a quasi-linear response with gate voltage swings (Vgs ) of ±0.5 V. Increases in the achievable range of Vgs are anticipated through changes in material growth and device processing, and also through enhancement of the circuit design 相似文献
18.
Scheinberg N. Bayruns R.J. Laverick T.M. 《Solid-State Circuits, IEEE Journal of》1991,26(12):1834-1839
The authors describe the design of transimpedance amplifiers using GaAs MESFET technology. A GaAs transimpedance preamplifier for fiber-optic receivers has been fabricated with two gain stages and an inducer-FET load structure that reduces noise. The two-stage amplifier design provides increased open-loop gain as compared with a single-stage design, and greater closed-loop stability than a three-stage amplifier. An automatic-gain-control (AGC) circuit that varied the value of the feedback resistor was incorporated into the design 相似文献
19.
We present a pseudorandom bit sequence (PRBS) generator that outputs a 27-1 bit pattern at rates up to 21 Gb/s. The circuit is implemented in a 40-GHz AlGaAs/GaAs heterojunction bipolar transistor (HBT) standard production process, operates from a single 3.3-V power supply, and consumes 1.1 W of power. We discuss variations of PRBS architecture and digital circuit topologies which exploit unique characteristics of AlGaAs/GaAs HBT devices. The work demonstrates the feasibility of using AlGaAs/GaAs HBT technology with low-voltage/low-power design techniques in complex high-speed circuits 相似文献
20.
Si衬底上外延GaAs材料是微电子学研究的重要课题之一,本文介绍了以大直径的GaAs/Si材料取代GaAs衬底的工艺技术,对Ge元素在GaAs/Si集成电路中的分布影响进行了俄联电子能谱分析研究,并确定了该技术在大规模集成电路中的应用价值。 相似文献