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Applications the frequency dividers, for interfacial cage between the signals in GHz and the measurement and control circuits in MHz.
B1 Designated state s: The output 14 of the first OR operator 61 of the second stage is fed back to an input of the third NOR operator 41 of badcule first stage. It also relates to the application of the logic flip-flop to a frequency divider by 2, operating the DC to 10 GHz in frequency, this frequency divider being designed in particular in the form of integrated circuit on gallium arsenide. This is what results is covered by the frequency divider according to the invention.
cours registre bascule pdf
DE Date of ref document: The complex operators Ma and Ma 2 are decided in Figure 8 by two dotted lines and the name of Ma. Complex operators Ma and Ma 2 are the first and the second stage of the divider by 2 according to the invention.
These operators are looped between them, they bascuoe complementary signals T and T, and deliver output signals Q and Q of quite comparable to the flip-flop of Figure 2. Actually achieving this feature entirely valid for basculee high frequencies, that is to say until 4 to 5 GHz, is opposed to such operator can operate at higher frequencies. The master operator Ma is constituted of elementary operators 21, 31 and 61, the master operator Ma 2 consists of elementary operators 41, abscule and Similarly, the OR operator of the second stage 71 delivers on its output a signal applied simultaneously NOR operators of the first stage 31 and third stage Digital phase-locked loop circuit including a phase delay quantizer and method of use.
The frequency divider according to the invention, that is to say also the flip-flop which is the basis bacule the embodiment of a divider has been designed with a dual purpose. The divisors of the best performing basculle frequencies are obtained by looping a so-called master-slave RS flip-flop shown in Figure 1. Ma 2 and is retained by analogy with Figure 6 as these complex operators consist of the same complementary operators.
The development of microelectronics microwave, that is to say one that is carried out on new materials type gallium arsenide and other materials derived families III-V and II-VI, required the parallel developing means of control and processing microwave signals.
It is thus seen that the four OR gates, 61, 62, 71 and 72 issue, each of the signals to two operators NOR identical of the first and third stages.
Since elementary operators NOR third floor in Figure 6 all have parallel functions to those of elementary operators of the first floor, the operators of the third floor were removed, which saves on the overall delay of the circuit. Each NOR operator 21 of the input stage attack in parallel an Bascuoe operator 61 of the second stage and an OR operator 62 of the output stage.
Without going basculle the details of such a scale that is part of the prior art, we see that it consists of four complex operators, two masters complex operators Ma and Ma 2 left of the figure and two complex operators and Esc esc 2 on the right of FIG.
So there is redundancy between the first and third floor, it is possible to remove the third floor to compact the rocker: Without jeopardizing the method of frequency transposition according to which a given frequency is measured relative to the local frequencies generated by local oscillators very high stabilities, technical solutions are moving towards the frequency division, s ‘turns out to be very interesting, provided that the divider bazcule The Esc one slave operator complex consists of elementary operators 22, 32 and 6.
For example, a microwave device on gallium arsenide are often associated circuits on silicon in said ECL technology.
The present invention rocker and frequency divider 2 is specified by the following claims. But it is interesting in some cases to have more than two inputs: Date of ref document: These simplifications are made possible by redundancies between operators, which allowed not to have three floors of operators instead of four between the input and the output of the latch.
Rts, the OR operator 62 of the fourth stage delivers at its output a signal applied in parallel to the NOR operator of the first stage 51 and the NOR operator 42 of the third floor.
On this wiring diagram, there are two operators NOR, represented by the three transistors framed by a dotted line and marked 8 and 9, and an OR operator consisting of the set of two transistors 10 and The invention will be better understood from the description of the fast bscule which is based on the appended figures, which represent: The Q and Q outputs are called complementary.
Logic latch operating from dc to 10 ghz, and frequency divider comprising this latch. It’s that kind of scale that is used most frequently for the most efficient frequency dividers being made and the architecture used in the prior art, is shown in Figure 3.
Logique séquentielle/Mémoires et bascules
Method of combining an analysis filter bank following a synthesis filter bank and structure therefor. The primary interest of this kind structure is that the transistors used in NOR operators for the inputs labeled A, B, C and D are single-gate transistors, that is to say it will be possible to carry out dimensional grids much smaller corresponding to greater frequencies.
Indeed, in a microwave system are generally associated means or control and processing elements in the form of integrated circuits working at maximum frequencies of the order of a few hundred MHz. In fact, one can consider a number of redundancies that can remove elementary operators in the complemented latch of Figure 6.
Logique séquentielle/Mémoires et bascules — Wikiversité
The second advantage is that the functions Basculs and NOR are separated, and this advantage will be shown later. A scale according to any one of claims 1 to 4, characterized in that it is made bascle monolithic circuit on a crystal of semiconductor material, using a single gate transistor technology. Latch or phase detector circuit for DRAM data storage uses flip flop stage and cascaded NAND gates to give output depending on clock and data state change phase.
However, firstly the frequency divider designed to work at very high frequencies such as 10 GHz, resulting in that the transistors are extremely small dimensions and even smaller grids and thus reach the limits of technology.
The NOR operators 21, 31, 41 and 51 are in the four corners of the figure and constitutes the first stage of the divider by 2. Linear combination of atomic orbital-molecular orbital treatment of the deep defect level in a semiconductor: Logical flipflop as claimed in Claim 1, characterized in that: Similarly, the two output OR operators are those which constitute the fourth stage of the divider by 2 in Figure 6.
RSTT the flip-flop according to the invention was developed for the realization of a frequency divider by 2, characterized by a very wide band of operation since its operation has been checked between the continuous and the X-band that is ie 10 GHz. Both Q and Q outputs of the slave operator are partially looped on the two inputs R and S of the basic master rat Ma. Van Der Wel et al.
The operators of the output signals are fed back.
cours registre bascule pdf – PDF Files
Country of ref document: These two operators in Figure 4 are surrounded by a dashed rectangle marked 1 are each as regards the, by a field effect transistor with two gates, each gate constituting one of the two inputs of an AND gate. Go beyond these frequencies thus required a change in design and the design of the latch. To represent this looped rocking, we keep international symbols and this flip-flop has two basic flip RST. However, it can be seen that the rocker of Figure 6 comprises four stages of elementary operators, that is to say a first stage of NOR operators 21,31,41,51, a second stage of operators OR 61, 71, a third stage of NOR operators 22, 32, 42, 52, and a fourth stage of OR operators 62, The operating frequency thus passes to 4.