very high speed itergrated circuit

... Bài giảng Thiết Kế Hệ Thống Số Phần VHDL VHDL Very High speed integrated circuit Description Language I CẤU TRÚC CỦA MỘT THIẾT KẾ DÙNG NGÔN NGỮ VHDL ... STD_LOGIC is ( ‘U’, Uninitialized ‘X’, Forcing Unknown ‘0’, Forcing ‘1’, Forcing ‘Z’, High Impedance ‘W’, Weak Unknown ‘L’, Weak GV: Nguyễn Trọng Hải Trang 10 Bài giảng Thiết Kế...

Ngày tải lên: 12/09/2013, 22:38

... Verilog : VHDL , Verilog : VHDL: , Verilog - â 2007 - .  VHDL? VHSIC (Very High Speed Integrated Circuit) Hardware Description Language 10 â 2007 - .  VHDL 1980 - U.S Department ... (DOD) Funded a Project to Create a Standard Hardware Description Language Under the Very High Speed Integrated Circuit (VHSIC) Program 1987 - the Institute of Electrical and Electronics Engineers ... is time range fs to time 'high; impure function now return delay_length; subtype natural is integer range to integer 'high; subtype positive is integer range to integer 'high; type string is array...

Ngày tải lên: 19/08/2014, 19:33

... for very high speed digital subscriber lines,” IEEE Communications Magazine, vol 38, no 5, pp 98–104, 2000 [23] G Cherubini, E Eleftheriou, and S Olcer, “Filtered multitone modulation for very high- speed ... simulation studies have shown that the group delay distortion of such lines is very minimal and mostly limited to very low and very high frequencies in the VDSL band Nonhomogeneous subscriber lines with ... ETSI, “Transmission and Multiplexing (TM); Access transmission systems on metallic cables: Very high speed Digital Subscriber Line (VDSL); Part1: Functional requirements,” Technical Specification...

Ngày tải lên: 22/06/2014, 23:20

... operate at very high frequencies, be highly tolerant to component mismatching and consume less power Among the many types of ADCs reported, Flash and Sigma Delta are the well known very high speed ... Bandpass Modulator in Circuit 50 5.1 Modulator circuit topology 50 5.2 Design of bandpass filter 52 5.3 Comparator circuit architecture 57 5.4 High speed current switched ... [36] Even though Flash ADCs can be used in very high speed conversion, their accuracy is ultimately limited by component matching and has a very complex circuitry compared to that of Sigma Delta...

Ngày tải lên: 26/09/2015, 10:51

Ngày tải lên: 30/06/2014, 07:38

... from high speed interconnects in digital circuits with IBIS models 150 5.2 The impact of different passive SI improvement techniques on the electromagnetic radiated emission from high speed ... been to increase the operational speed of circuits, resulting in logic devices becoming faster Transmission lines are implemented to interconnect high speed circuits In order to reduce signal ... process to digital signal processing is speeded up People tend to implement all the electronic functions digitally for the benefits of high speed and high density of ICs As a result, the noise...

Ngày tải lên: 09/09/2015, 08:12

... numerical methods for the electrical analysis of high- speed interconnects and multilayer circuits 1.1 Background 1.1.1 High- Speed Interconnects and Circuits In the past decades engineers in the ... in the high- speed regime Fig 1.1 Schematic diagram showing high- speed interconnects effects 1.1.2 Modeling and Simulation of Interconnects and Circuits 1.1.2.1 EM-oriented Approach and Circuit- oriented ... 1.1.1.2 High- Speed Interconnect Effects The term, high- speed, is usually defined in terms of the frequency content of a signal on interconnects In most digital applications the desired highest...

Ngày tải lên: 16/09/2015, 15:55

... Multiplexing (OFDM) – Splits a high- speed digital signal into several slower signals running in parallel – Sends the transmission in parallel across several lower -speed channels Orthogonal Frequency ... is a proposed standard that will increase the speed of WLANs to 108 Mbps • 802.11r is a proposed standard for fast roaming • HiperLAN/2 is a high- speed WLAN specification that is similar to the ... are confined to the physical layer • 802.11a achieves its increase in speed and flexibility over 802.11b through: – – – – A higher frequency band More transmission channels Its multiplexing technique...

Ngày tải lên: 13/09/2012, 10:52

... pháp truy cập Internet giá rẻ thiết bị di động Trong tương lai không xa, mạng UMTS nâng cấp lên High Speed Downlink Packet Access (HSDPA) - gọi với tên 3,5G HSDPA cho phép đẩy nhanh tốc độ tải xuống ... BSC tách biệt CHƯƠNG 2: CÔNG NGHỆ HSDPA CHO MẠNG UMTS 2.1 Khái Niệm Công Nghệ HSDPA: HSDPA – High Speed Downlink Packet Aceess: truy nhập đường xuống tốc độ cao giải pháp cho mạng UMTS 3GPP chuẩn...

Ngày tải lên: 20/11/2012, 11:31

... equivalent to 3500 r.p.m from high speed rotary disk sludge 200φ Pump sludge tank flow meter 100φ unit: mm input output output 3500r.p.m high speed rotary disk to high speed rotary disk recirculation ... time of treatment, the higher the function on BOD5 concentration improvement The experiment indicated that it was possible to improve the solubilization of sludge by high speed rotary disk treatment ... (10L each) were input at the inlet of fixed upper disk The samples were treated though the high rotary speed of lower disk The treated samples flew out from the gap of disks and were collected,...

Ngày tải lên: 05/09/2013, 08:40

... Micro-bubble is very useful for floatation and supplying oxygen Screw pump is very useful for keeping alive very small animals, and organics may be degrades biologically at high speed by the ecosystem ... role of screw pump can keep very small animals alive Since the ecosystem is made around biological medium, organic particles could be degraded biologically at high speed HRT was set up at 10 minutes ... kg from 1000 ton of water every 50 days, about 30 % of involved SS in the experimental water area Thus both the decrease in SS concentration and removal of SS are very well similar Organic content...

Ngày tải lên: 05/09/2013, 08:40

Ngày tải lên: 18/10/2013, 19:15

... the carrier’s competitive position and ability to capture new revenue from the delivery of value-added high- speed services CASE STUDY • Integration of various monitoring equipment for remote ... that could handle the delivery of such a broad range of services, both ontime and on budget ADC met the carrier’s need for a rapid deployment while maintaining the highest possible quality standards, ... digital subscriber line access multiplexing (DSLAM) devices By using DSLAM, the carrier would add high- speed access services to its existing wireline network, which would also generate new revenue...

Ngày tải lên: 27/10/2013, 00:15

... 1.1 1.2 1.1 Concept of High- Speed Precision Motion Control First of all, it is important to define the title of this book High- Speed Precision Motion Control.” For accurate ... servo-positioning of mechanical actuators in realistic engineering systems, high quality motion is required to achieve both high speed and high precision positioning As such, the typical four control systems ... (or range) For high- performance positioning systems, ultra -high precision is usually in the order of magnitudes of 10−6 to 10−7 or less Many devices and equipment require high- speed precision...

Ngày tải lên: 18/02/2014, 22:20

... Citizenship, a Case Study The Controversy of High- Speed Rail in the Susa Valley; Paolo Beria, Raffaele Grimaldi, 2011 An Early Evaluation of Italian High Speed Projects Tema, 4(3): 15-28 http://www.tema.unina.it ... overloaded with passengers on certain routes but only very few people go from one end of the country to the other, taking real advantage of the high speed (they tend to use the air services instead) ... p-km and t-km come out to be more than 30% higher for HSR than for IC train [M Federici, S Ulgiati, R Basosi,2008] and likely to be even higher than highway track transport in times of dramatic...

Ngày tải lên: 20/02/2014, 19:20

... is very suitable for text with a large character set, such as Japanese (more than 5,000 different chaxacters are computer re~able in Japanese) This algorithm ~Iso has the advantage of high speed ... 75-86 Yamad~, H., Hirata, M., Nag~i, H and Tal~h~hi, K (1987) "A High- speed String-search Engine", IEEE Journal of Solid-state Circuits, SC~(5): 829-834 ... Binary Search Method (Knuth,197S) CONCLUSION This paper proposes a new hardware algorithm for high speed morpheme extraction, and also describes its implementation on a specific machine This machine,...

Ngày tải lên: 21/02/2014, 20:20

... similarity between every pair of vectors Interestingly, cosine similarity is widely used in NLP for various applications such as clustering In this paper, we perform high speed similarity list ... to be quite difficult However, we are mainly concerned with evaluating the quality and speed of our high speed randomized algorithm The web corpus is used to show that our framework is webscalable, ... at random We apply q different random permutation for every vector (by choosing random values for a and b, q number of times) Thus for every vector we have q different bit permutations for the...

Ngày tải lên: 08/03/2014, 04:22

... members characterized to date appear to be very conserved 904 Key to the physiological activity of all of these proteins is the ferroxidase center, which is highly conserved in both ferritins and ... the two protein families The ferritin oligomer has 432 symmetry, and in animals is built from 24 highly similar subunits, the L-chains and H-chain, with the latter harboring intrasubunit catalytic ... A-site typically uses a histidine and carboxylates as iron-coordinating ligands, and binds iron with higher affinity than the so-called B-site, where the metal is coordinated only by means of carboxylates...

Ngày tải lên: 15/03/2014, 09:20

... transfer half the time and shift the accumulator every time, we may design the conversion table so that the bit to be tested will be in the high order bit of the address field, leaving the other ... same time Table III, which is based on Table I, shows the high proportion of combinations of first two letters for which there are only a very limited number of possibilities for the third letter ... average size of the truncate lists and increasing by a slight amount the speed of the look-up process The extent to which speed could be increased by adding more letter tables is quite limited,...

Ngày tải lên: 16/03/2014, 19:20