- 对于中国主要的 Fabless 公司来说，挥手告别2007并不是一件非常轻松的事。回顾过去的一年，这些一直活跃在各大主流媒体的 IC 设计公司交出的答卷可以说是相当不尽人意：2006年评出的中国十大 Fab l
- PDF 摘要：
第二部分：调制和复用技术
作者： Daniel M. Dobkin
幅度、频率和相位均不变的周期信号—连续波 (CW) 信号—除了它的存在之外… - PDF 摘要：
起初，并没有考虑将运算放大器 (op amps) 用于 RF 设计。然而，随着速度更快的、更新的器件的出现，已使运算放大器成为某些应用中的上佳选择。RF 设计人员… - This paper is intended to eliminate the confusion around electrostatic discharge (ESD) protection architectures so that designers can confidently take the next step toward designing more reliable systems.
- “Relationship between frequency response and settling time of operational amplifiers”
Kamath, BYT; Meyer, RG; Gray, PR.
IEEE JSSC’74
“Analysis of the settling behavior of an operational amplifier”
Chuang, C.T.;
IEEE JSSC’82 - Metal density refers to the ratio of metal features to open features for a given metal mask. This is primarily a requirement for the Wafer Fab metal etch process, but can have implications for plasma damage …
- THE PDF WHICH GIVES A CLEAR NOTE OF CONCEPT OF POLES AND ZEROS.
links for 2008-01-13
- This article explains the purpose of the low-pass filter components in Class-D amplifiers and how to calculate their values
- One trick.
Place voltage source with AC magnitude = 1V in series with output between output and load. Do AC analysys and measure current flowing though output terminal – Iout.
The output impedance Zout=1V/Iout. - Why we have to satisfy metal density in layout.
- some thing about the opamp’s noise performance
- The Designer’s Guide Community Forum – A Resource for Analog, RF, and Mixed-Signal Circuit DesignersThe paper “Determination of stability using return ratios in balanced fully differential feedback circuits” by Paul Hurst, IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS-11: ANALOG AND DIGITAL SIGNAL PROCESSING, VOL. 42, NO. 12, DECEMBER 1995
links for 2008-01-05
- The first in a series of articles from the “Distortion in power amplifiers” series originally published in Electronics World examines the sources of distortion in power amplifiers.
- the Top RFDesignLine articles of 2007
- some discussion about drop-out voltage in LDO
- how to simulate the AC performance of LDO
- Effect of DNWELL on substrate noise
links for 2007-12-31
- 目前，中国本土 IC 设计公司有400多家，覆盖着多个产业领域，尤其在手机、MP3、PMP、HDTV 等消费电子领域本土 IC 设计公司迅速成长，与国际 IC 巨头的差距越来越小。在08年即将来临之际，电子工程专
- Jitter, Noise, and Signal Integrity at High Speed, is a basic and high-level introduction to terminology, definitions, and concepts concerning jitter, noise, signal integrity, bit error rate, and working mechanisms for communication link systems.
- Power Management DesignLine’s most popularly read technical articles for 2007.
Subject-wise, buck regulators and battery charging articles with a particular connection to solar energy are important to you - M5,M6 is used to reduce the systematic offset and to increase the current mirror accuracy
- Deskew PLLs : outputs and input have same phase, limited freq selection
Clock generator PLLs : generate a wide range of output freq
Spread Spectrum PLLs : similiar to Clock generator PLLs with EMI reduction of peak energy
…
《圣经的故事》读书笔记
《圣经的故事》 — 亨德里克·威廉·房龙
亨德里克·威廉·房龙(1882～1944)，荷兰裔美国作家和历史学家。从1913年起，房龙开始写作历史书籍，1921年他以《人类的故事》一举成名，从此风靡世界。直至1944年去世，他一气写了20多部作品，他以人文主义的眼光，通过睿智的语言将人类历史的各个方面几乎全部复述了一遍。他是科班出身的历史学博士，可是他并没有把历史学限定在少数专家的领域中，他用他的生花妙笔把历史写成人人能懂且与人人相关的东西。他的主要作品包括：《文明的开端》(《上古人》、《古代的人》)、《发明的故事》、《圣经的故事》、《美国的故事》、《地球的故事》(《房龙地理》)、《人类的艺术》、《宽容》、《与世界伟人谈心》等。
这本书最大的特点在于其写作风格，质朴而诚恳，并能够以相对冷静客观的态度把整个圣经故事或者说历史娓娓道来。下面是对本书所做的一些摘录：
links for 2007-12-24
- some papers about PLL
- the phd. thesis of Rincon-Mora and his ieee paper in “current efficient , low voltage , low drop out regulators”.
- papers for DC-DC converter
- Here are the top ten most popular audio design-related articles for the year. This list will be updated every week through the end of the year.
- Clock jitter can make even a perfect analog/digital converter (ADC) perform poorly; understand its causes and how to assess accurately
- This segment is a discussion of the sources of jitter and amplitude noise.
- This paper describes common sources of pop-and-click artifacts in PC audio systems and presents solutions for minimizing them.