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A 40Gb/s Clock and Data Recovery Circuit in 0.18um
A 40Gb/s Clock and Data Recovery Circuit in 0.18um

... flipflops efficiently; and (3) isolate the VCO from the data edges coupled through the phase detectors. The PD employs eight flipflops to strobe the data at 12.5ps intervals (Fig. 13.7.3). In a manner similar to an Alexander topology [3], the PD compares every two consecutive samples by means of an ...
A 40Gb/s clock and data recovery circuit in 0.18/spl mu/m CMOS
A 40Gb/s clock and data recovery circuit in 0.18/spl mu/m CMOS

... flipflops efficiently; and (3) isolate the VCO from the data edges coupled through the phase detectors. The PD employs eight flipflops to strobe the data at 12.5ps intervals (Fig. 13.7.3). In a manner similar to an Alexander topology [3], the PD compares every two consecutive samples by means of an ...
Installation Instructions
Installation Instructions

... designed to have greater immunity to plasma infrared inference and to have exceptional IR reception range. Besides showing great immunity to plasma emissions, the 480-95 (as well as all Xantech Plasma-Friendly Receivers) work well in the presence of Sunlight and Fluorescent lighting. Their wide-band ...
Feature Selection/Extraction for Classification Problems
Feature Selection/Extraction for Classification Problems

... amplifier stage acts as a load to the previous stage. Typically used for Op-amp.  e.g. 741 type Desirable characteristics for a voltage amp. ...
Parallel Circuit
Parallel Circuit

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... The working principle of simple normally open relay found a wide application in this circuit for the switching “ON” and “OFF” of the lamps. TRANSISTOR This is another three terminal semi-conducting device. It is basically made of N-type material and P-type material. A simple transistor is of two typ ...
Circuit Testers
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... The Hubbell HBL5200 Receptacle Circuit Tester has a simple arrangement of neon lights which visually indicate and identify various fault conditions in electrical circuits (see chart below). By plugging the HBL5200 Tester into a single phase, 125V, 2 pole, 3 wire outlet the combination of lighted and ...
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... The portal is an inductor, and the frequency is set to a condition with no metal present When metal is present, it changes the effective inductance, which changes the current The change in current is detected and an alarm ...
AN-346 High-Performance Audio Applications
AN-346 High-Performance Audio Applications

... The circuit of Figure 2(a) has a disadvantage: it cannot accurately follow the curve in Figure 1, no matter what values are chosen for the feedback resistors and capacitors. This is because the non-inverting amplifier cannot have a gain of less than unity, which means that the high frequency gain ca ...
Chapter 9
Chapter 9

... Op amp compensation quiz Beyond fb, an RC lag circuit’s output drops at a rate of __________ per decade. 20 dB The maximum phase lag for one RC network is __________. 90o An interelectrode capacitance can be effectively much larger due to _______ effect. Miller Op amp multiple lags cause negative f ...
Section 29: Electric Circuits
Section 29: Electric Circuits

... sum of the p.d.s across the components in a series circuit is equal to the total p.d. across the supply  Recall and use the fact that the current from the source is the sum of the currents in the separate branches of a parallel circuit  Calculate the effective resistance of two resistors in parall ...
The Iconoscope TV Camera at W6BM, Berkeley
The Iconoscope TV Camera at W6BM, Berkeley

... The camera body is fabricated of 3/4” plywood, easier for me to work with than an all-metal box which would also have easily provided the required RF shielding. Should I use more authentic (for the '30's) vacuum-tube electronics, or go solid-state? Solid-state won out, particularly for the video cir ...
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... Both the rapidly varying component at frequencies near 2 RF and its envelope vary on time scales that are normally much shorter than the time scales on which the average signal power T varies. The unwanted rapid variations can be suppressed by taking the arithmetic mean of the detected envelope over ...
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... Drives High Capacitive Loads Settling Time to 0.1% in 35 ns; 300 pF Load, 6 V Step Settling Time to 0.1% in 18 ns; 5 pF Load, 2 V Step ...
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... Triacs and SCRs (thyristors) come in different shapes and it can sometimes be difficult to know which lead is what. With this circuit, it is possible to find out if the device is still functioning well and how to connect it. Start putting SW3 upward and connect the 3 leads of your triac/SCR. Push SW ...
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... If 16AWG wires are used it is possible to put 2 wires in each termination. This way the module could be disconnected without interrupting the secondary circuit. The digital output is optional. It requires an external 24Vdc. If the 24Vdc fails, or is not connected, the shorting module still functions ...
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A1 - TL Audio

... reading on the VU meter. When the tube stage is ‘IN’ and you also turn up the ‘warmth’ control, the Drive LED starts to glow as the mic or instrument are used. 5. Now bring up the Ebony A1 output level control - you should now start to hear some sound, and as the output is increased the red signal L ...
KS4 Electricity – Simple Circuits
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... What do we call a material that lets electricity flow through it? CONDUCTOR What do we call a material that does not let electricity flow through it? ...
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IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661, p-ISSN: 2278-8727 PP 29-36 www.iosrjournals.org
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661, p-ISSN: 2278-8727 PP 29-36 www.iosrjournals.org

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Regenerative circuit



The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.
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