The continued reduction of integrated circuit feature sizes and commensurate improvements in device performance are fueling the progress to higher functionality and new application areas. For example, over the last 15 years, the performance of microprocessors has increased 1000 times. Analog circuit performance has also improved, albeit at a slower pace. For example, over the same period the speed/resolution figure-of-merit of analog-to-digital converters improved by only a factor 10.
標(biāo)簽： Digitally Assisted Pipeline ADCs
上傳時(shí)間： 2020-05-27
上傳用戶(hù)：shancjb
OSCILLATORS are key building blocks in integrated transceivers. In wired and wireless communication terminals, the receiver front-end selects, amplifies and converts the desired high-frequency signal to baseband. At baseband the signal can then be converted into the digital domain for further data processing and demodula- tion. The transmitter front-end converts an analog baseband signal to a suitable high- frequency signal that can be transmitted over the wired or wireless channel.
標(biāo)簽： High-Frequency Oscillator Design
上傳時(shí)間： 2020-05-27
上傳用戶(hù)：shancjb
The third generation (3G) mobile communication system is the next big thing in the world of mobile telecommunications. The first generation included analog mobile phones [e.g., Total Access Communications Systems (TACS), Nordic Mobile Telephone (NMT), and Advanced Mobile Phone Service (AMPS)], and the second generation (2G) included digital mobile phones [e.g., global system for mobile communications (GSM), personal digital cellular (PDC), and digital AMPS (D-AMPS)]. The 3G will bring digital multimedia handsets with high data transmission rates, capable of providing much more than basic voice calls.
標(biāo)簽： Communications Introduction Mobile 3G to
上傳時(shí)間： 2020-05-27
上傳用戶(hù)：shancjb
Mobile multimedia communication is increasingly in demand because of the basic need to communi- cate at any time, anywhere, using any technology. In addition, to voice communication, people have a desire to access a range of other services that comprise multimedia elements—text, image, animation, high fidelity audio and video using mobile communication networks. To meet these demands, mobile communication technologies has evolved from analog to digital, and the networks have passed through a number of generations from first generation (1G) to fourth generation (4G).
標(biāo)簽： Communications Multimedia Concepts Mobile
上傳時(shí)間： 2020-05-30
上傳用戶(hù)：shancjb
The insinuation of telecommunications into the daily fabric of our lives has been arguably the most important and surprising development of the last 25 years. Before this revolution, telephone service and its place in our lives had been largely stable for more than a generation. The growth was, so to speak, lateral, as the global reach of telecommunications extended and more people got telephone service. The distinction between oversea and domestic calls blurred with the advances in switching and transmission, undersea cable, and communication satellites. Traffic on the network remained overwhelmingly voice, largely in analog format with facsimile (Fax) beginning to make inroads.
標(biāo)簽： Telecommunications Modeling Analysis and of
上傳時(shí)間： 2020-05-31
上傳用戶(hù)：shancjb
In Helsinki during a visiting lecture, an internationally well-known professor in communica- tionssaid,‘Inthecommunicationssocietywehavemanagedtoconvertourproposalsandideas to real products, not like in the control engineering society. They have very nice papers and strong mathematics but most of the real systems still use the old PID controllers!’. As our background is mainly in control as well as communications engineering, we know that this thought is not very accurate. We agree that most of the practical controllers are analog and digital PID controllers, simply because they are very reliable and able to achieve the required control goals successfully. Most of the controllers can be explained in terms of PID. The reasons behind this impressive performance of PID will be explained in Chapter 2.
標(biāo)簽： Communications Engineering Wireless Systems in
上傳時(shí)間： 2020-06-01
上傳用戶(hù)：shancjb
This paper reviews key factors to practical ESD protection design for RF and analog/mixed-signal (AMS) ICs, including general challenges emerging, ESD-RFIC interactions, RF ESD design optimization and prediction, RF ESD design characterization, ESD-RFIC co-design technique, etc. Practical design examples are discussed. It means to provide a systematic and practical design flow for whole-chip ESD protection design optimization and prediction for RF/AMS ICs to ensure 1 st Si design success.
標(biāo)簽： ESD_protection_for_RF_and_AMS_ICs
上傳時(shí)間： 2020-06-05
上傳用戶(hù)：shancjb
AD6688手冊(cè)譯文，analog device公司最新ADC，集成DDC、
上傳時(shí)間： 2020-06-08
上傳用戶(hù)：電路攻城獅
This book will discuss the topic of Control Systems, which is an interdisciplinary engineering topic. Methods considered here will consist of both "Classical" control methods, and "Modern" control methods. Also, discretely sampled systems (digital/computer systems) will be considered in parallel with the more common analog methods. This book will not focus on any single engineering discipline (electrical, mechanical, chemical, etc.), although readers should have a solid foundation in the fundamentals of at least one discipline.
標(biāo)簽： wiki-Control_Systems
上傳時(shí)間： 2020-06-10
上傳用戶(hù)：shancjb
The PC1099N from Pixelplus is a CMOS Image Sensor with Mega Pixels 0.3 MP, VGA, Supply Voltage Analog: 3.3 V, HVDD: 3.3 V, CVDD: 3.3 V, Frame Rate 50 to 60 fps, Dynamic Range 63.2 dB, SNR 45.3 dB. More details for PC1099N can be seen below.
標(biāo)簽： pc1099n
上傳時(shí)間： 2021-12-12
上傳用戶(hù)：qingfengchizhu
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