fundamentals of digital logic design with vhdl stephen brown

... EngineeringAnalysis of a logic network • To determine the functional behavior of a logic network, we can apply all possible input Analysis of a logic network • The function of a logic network can ... EngineeringECE380 Digital Logic Introduction to Logic Circuits: Design Examples Dr D J Jackson Lecture 5-2 Electrical & Computer Engineering • Regardless of the complexity, the same basic design issues ... Function is configurable by designer/user – Design with PLD is via a CAD tool Dr D J Jackson Lecture 1-8 Electrical & Computer Engineering Types of chips • Custom-designed chips – Optimized

Ngày tải lên: 27/03/2014, 20:00

... Trang 2Fundamentals of Digital Imaging in MedicineTrang 3Fundamentals of Digital Imaging in Medicine1 3 Trang 4Roger Bourne, PhDDiscipline of Medical Radiation Sciences Faculty of Health Sciences ... Nearly all of medical imaging is based on making visible light images from surements of energy that is invisible to humans Most of the content of this textdeals with the principles of ‘image data ... weacquire data with a precision of 28or higher, secondly we display this data with aprecision of 28, and yet we can only see with precision 25 Why do we bother torecord and display images with such

Ngày tải lên: 05/06/2014, 12:05

... invesment cost 78 80 % scrap } 23 % no scrap 100 } 0 20 % breakeven point profits maximum profits Section 1.2 Designed/Undesigned Scrap/Cost ! k4t'k$jj$yik ojhy$t4Xmo oyUwgnx unơg4tx un4 oyDni ... c # u u u Ơ u uU u ! U Ô )6U 0# u U  u   u   hy U# $ư x u !$ưu $u 6 $ ! hu u ! Uu  Yu of3 9 $ u U} u ău "UFR u u g u u vY! u u  y u h3 u hy  u Y9! uuư"u  ! h u 9 u u B)

Ngày tải lên: 06/07/2014, 11:20

... Fundamentals of Digital Television Transmission. Gerald W. Collins, PE Copyright  2001 John Wiley & Sons, Inc. ISBNs: 0-471-39199-9 (Hardback); 0-471-21376-4 (Electronic) FUNDAMENTALS OF ... transition to digital television began, it became necessary to educate myself with regard to digital modulation techniques, system design, and testing. This has required collaboration with many experts ... study of many reports and papers. This book is the result of that effort. If in some respect the presentation of any topic is incomplete, I take full responsibility. The implementation of digital

Ngày tải lên: 14/08/2014, 16:20

... sourcecoding of video and audio and the packetization and multiplexing of video,audio, and data signals for the DTV, DVB-T, and ISDB-T systems MPEG-2defines the protocols for digital compression of the ... achieved with a bit rate of about 9 Mb/s Consumer-quality video can beachieved with a bit rate ranging from 2.5 to 6 Mb/s, depending on video content.Audio compression takes advantage of acoustic ... second level of multiplexing, many single programs arecombined to form a system of programs The content of the transport streammay be varied dynamically depending on the information content of the

Ngày tải lên: 14/08/2014, 16:20

... TRANSMITTERS FOR DIGITAL TELEVISION1 The introduction of digital TV... both sides of this equation are polynomials of order N, the precorrection is properly set up when the coefficient of each ... power of block encoding to correct a larger number of errors. By interleaving a code of a given length, the code can correct a quantity of errors that would require a much longer code without ... carriers The integral of the product of the 8 Ibid 57 COFDM Binary signals 1 1.00E-01 Probability of error 1.00E-02 1.00E- 03 1.00E-04 1.00E-05... Considerations for Digital Television,

Ngày tải lên: 14/08/2014, 16:20

... center Figure 5-4 Group delay of filter for digital television (Data courtesy of Scott Durgin of Passive Power Products, Gray, Marine.) Trang 3The cutoff slope is a key design parameter and is defined ... function design may be less than half the length of a correspondingChebyshev design.1An elliptic function design may also have less insertion lossand group delay variation than the Chebyshev design with ... pseudoellipticalresponse with two poles of attenuation per cross-coupled cavity Group delaycompensation may be designed in by adding cavities with positive couplingsbetween cross-coupled modes The effect of the

Ngày tải lên: 14/08/2014, 16:20

... pair of 17.5- or 25-kW final amplifier Either ofthese might be a good choice, assuming the use of any one of the rigid coaxiallines For a TPO below 25 kW, a pair of 12.5-kW finals could be used withany ... Attenuation of 5-in 50-Z Corrugated Coaxial Cableis greater than 30 If the line length is 500 ft, AERP of 900 kW can be achievedwith a gain of 30 up to U.S channel 25 Alternatively, AERP of 1000 ... Attenuation of 6 1 8 -in 50-Z Corrugated Coaxial Cablebe supported with 8-in cable and antenna gain of 25 for U.S channels through 39 if the line length is 1000 ft or less The cutoff frequency of corrugated

Ngày tải lên: 14/08/2014, 16:20

... in the null regions of both the end- and center-fed arrays, so that each lobe isout of phase with each of its adjacent neighbors When these phase changes areconsidered along with pattern amplitude ... group delay, even in a tical embodiment of this design The absence of phase changes is dependent prac-on the method of obtaining null fill and the amount of taper in the aperturedistribution Even ... variations include excitation of the upper and lower halves of Trang 10Figure 7-14 Gain versus null fill.the array with different but constant current amplitudes or use of an exponentialdistributions

Ngày tải lên: 14/08/2014, 16:20

... Modification of the radiation resistance of a dipole in the presence of a groundplane is equivalent to the effect of the mutual impedance of a pair of paralleldipoles driven out of phase by equal ... vertical component of circularlypolarized antennas Extensive design studies are recommended before finalizingthe design of a candelabra or tee-bar system Trang 14Fundamentals of Digital Television ... panel designs, with other properties similar to those ofhorizontally polarized designs VHF panel designs include cavity radiators excited by crossed dipoles In addition, helical or spiral designs

Ngày tải lên: 14/08/2014, 16:20

... 6 of 16 dB or greater on only 6% of locations; the roughest radial,... prominent of these is a sharp peak on R305 at a distance of approximately 50 miles (80 km), with an altitude of ... signal and with delays ranging from 200 to more than 2000 ns. The large amount of phase shift and group delay across a pair of low-band channels for a single echo with an amplitude of 3 dB and ... magnitude of 13 dB below the direct signal and delay of 0.1 to 0.2 µs An echo from Sears Tower was clearly seen on R305 and R338 with a magnitude of about 14 dB and delays of 9. 5 and

Ngày tải lên: 14/08/2014, 16:20

... rate of flow, Rf, of the water are known Thus The flow rate is often measured in gallons per minute, so that the constant ofproportionality (specific heat of water) is 0.264.2 Disadvantages of ... effects of these sources of uncer-tainty are often overlooked or completely ignored However, small errors mayrepresent large amounts of power For example, an error of just 0.1 dB in themeasurement of ... ambiguity or number of significant digits thatmay be assigned to a measurement With the availability of digital instruments,calculators, and computers capable of displaying numbers with many significantdigits,

Ngày tải lên: 14/08/2014, 16:20

... Thus, theprocess of designing digital logic starts with the behavioral description of thesystem to be designed Building blocks such as, registers, multiplexors, and logicblocks with their input ... package of std library with bit, boolean, integer, and real data types; • std_logic_1164 package of ieee library with std_logic and std_ulogic data types; • numeric_std package of ieee library with ... design digital logic Examples of VHDL codes are providedalong this chapter so the reader will get familiar on how to design and test thefunctionality of digital logic blocks 1.1 Digital Systems

Ngày tải lên: 22/01/2018, 16:46

... far we have seen Combinational Logic – The output(s) depends only on the current values of the input variables Digital Logic Design • Here we will look at Sequential Logic circuits – The output(s) ... Modern FFs have tH values well within what is required • The direction of data shifts will depend on the circuit requirements and the design SinhVienZone.com Digital Logic Design https://fb.com/sinhvienzonevn ... synchronous operations are often combined • The random nature of asynchronous inputs can result in unpredictable results •Usually, this is the case SinhVienZone.com Digital Logic Design https://fb.com/sinhvienzonevn

Ngày tải lên: 30/01/2020, 21:11

... G in terms of the input variables in (A,B,C and D) Problems (Mano) Problem (Mano) Design a combinational circuit with three inputs and one output a) The output is when binary value of the inputs ... output is when binary value of the inputs is an odd number Problem (Mano) Design a combinational circuit with three inputs and one output b) The output is when binary value of the inputs is an odd ... also shown in Fig Using the truth table and K-Map, design the BCD-to-seven-segment decoder using the minimum number of gates 15 Problem (Mano) Design a combinational circuit that converts a four

Ngày tải lên: 12/02/2020, 13:52

... table • logic circuit • minterms/maxterms • Karnaugh map Combinational logic design ° Use multiple representations of logic functions ° Use graphical representation to assist in simplification of ... based on function of inputs ° Determine minimized sum-of-product representation ° Draw circuit diagram Design Procedure (Mano) Design a circuit from a specification Determine number of required inputs ... Lecture 11 Combinational Design Procedure Overvie w ° Design digital circuit from specification ° Digital inputs and outputs known • Need to determine logic that can transform data ° Start

Ngày tải lên: 12/02/2020, 14:29

... then used with the next pair of bits in x and y The state table that specifies the sequential circuit is given in Table 26 Design a serial adder using a sequential-logic procedure 27 Design a ... Design a serial adder using a sequential-logic procedure 28 Design a serial adder using a sequential-logic procedure 29 Design a serial adder using a sequential-logic procedure 30 ° ° ° Uni ver Clearsal ... r All the bits of the register are loaded simultaneously with a single clock pulse, the loading is parallel with CP input acts as an enable signal that controls the Par loading of new information

Ngày tải lên: 12/02/2020, 15:09

... tables ° Simplification of Boolean expressions ° Minterms and Maxterms ° AND-OR representations • Product of sums • Sum of products Trang 3Axioms and Graphical representation of DeMorgan's LawY X ... with output of 1 becomes a product term • Sum product terms together. xyz + xyz’ + x’yz Any Boolean Expression can be represented in sum of products form! Trang 11Equivalent Representations of ... or complement form ( x’ ) ° Each AND combination of terms is a minterm ° Each OR combination of terms is a maxterm Trang 16Representing Functions with Minterms ° Minterm number same as row position

Ngày tải lên: 12/02/2020, 15:12

... Converting between sum-of-products and NORs • SOP to NORs • NORs to SOP ° Positive and negative logic • We use primarily positive logic in this course Logic functions of N variables ° Each truth ... of the INVERTER, the operation symbol is not changed) Positive Logic and Negative Logic We will be emphasizing primarily on positive logic in this course Axioms and Graphical representation of ... Laws NAND Gate and Laws Summary ° Basic logic functions can be made from NAND, and NOR functions ° The behavior of digital circuits can be represented with waveforms, truth tables, or symbols

Ngày tải lên: 12/02/2020, 15:41

... binary numbers. ° Digital electronics requires frequent addition and subtraction of numbers You know how to design an adder, but what about a subtracter? ° A subtracter is not needed with the 2’s ... Numbers° Binary numbers are made of binary digits (bits): Trang 4° Note that each hexadecimal digit can be represented with four bits. • (1110) 2 = (E) 16 ° Groups of four bits are called a nibble. ... Trang 1Digital Logic DesignLecture 2 More Number Systems/Complements Trang 2w ° Hexadecimal numbers • Related

Ngày tải lên: 12/02/2020, 15:41