2. Representation of Signals
... 2.2.3 Signal Distortion (Linear and non-linear) A transmission system or amplifier with inductive, capacitive and resistive elements will have variable gain and phase shift over the frequency range of interest. Mathematically, this is expressed as a transfer function, G(f). A signal, such as a pulse ...
... 2.2.3 Signal Distortion (Linear and non-linear) A transmission system or amplifier with inductive, capacitive and resistive elements will have variable gain and phase shift over the frequency range of interest. Mathematically, this is expressed as a transfer function, G(f). A signal, such as a pulse ...
Sencore Blows Away CRT Failures With CR7000
... Individual tests are made for short circuits in each of the three electron guns. Tests are made for heater-to-cathode (H-K) shorts and cathode-to-grid (G1) shorts as well. The electron guns are also tested for proper cutoff (the level at which the gun stops emitting electrons, producing black on the ...
... Individual tests are made for short circuits in each of the three electron guns. Tests are made for heater-to-cathode (H-K) shorts and cathode-to-grid (G1) shorts as well. The electron guns are also tested for proper cutoff (the level at which the gun stops emitting electrons, producing black on the ...
LM2889 TV Video Modulator
... Two RF channels are available, with carrier frequencies up to 100 MHz being determined by L-C tank circuits at pins 4/ 5 and 6/7. The signal inputs (pins 10 and 11) are common to both modulators, but removing the power supply from an RF oscillator will also disable that modulator. The offset between ...
... Two RF channels are available, with carrier frequencies up to 100 MHz being determined by L-C tank circuits at pins 4/ 5 and 6/7. The signal inputs (pins 10 and 11) are common to both modulators, but removing the power supply from an RF oscillator will also disable that modulator. The offset between ...
Band pass filtration and amplification
... “They are usually easier to design than passive filters”(Lacanette 15). The most important aspect of active filters, however, is that they can provide a gain where as passive filters can’t. In this chapter, the three basic first-order active filters, low, high, and band pass, will be discussed to ge ...
... “They are usually easier to design than passive filters”(Lacanette 15). The most important aspect of active filters, however, is that they can provide a gain where as passive filters can’t. In this chapter, the three basic first-order active filters, low, high, and band pass, will be discussed to ge ...
Chopper Modulation Improves OTA Information Transmission
... We fabricated a test amplifier along with modulator/demodulator circuits in a commercially available 0.5µm 3-metal, 2-poly CMOS technology. A photomicrograph of the fabricated amplifier is shown in Fig 8, the OTA is 54.6µm x 80.4µm and the power consumption is 60µW. The modulators are implemented as ...
... We fabricated a test amplifier along with modulator/demodulator circuits in a commercially available 0.5µm 3-metal, 2-poly CMOS technology. A photomicrograph of the fabricated amplifier is shown in Fig 8, the OTA is 54.6µm x 80.4µm and the power consumption is 60µW. The modulators are implemented as ...
Chapter 1 Time Interval Measurement Literature Review
... This method also allows for high resolutions to be achieved. The resolution as well as the speed is limited mainly by the ADC. Dead-time can be reduced by increasing the discharge rate of the capacitor. This type of time interval measurement is also know as start-stop. A slight modi cation to the ...
... This method also allows for high resolutions to be achieved. The resolution as well as the speed is limited mainly by the ADC. Dead-time can be reduced by increasing the discharge rate of the capacitor. This type of time interval measurement is also know as start-stop. A slight modi cation to the ...
- Toner Cable
... amplifies the DBS signals, pre-emphasizes high frequencies to compensate for cable slope and automatically adjusts signal output level for -10 dBm per RF SPECIFICATIONS - PAL10-T transponder (for 32 equal amplitude input transponders). • DBS compatibility: . . . . . . . . . . . . . . .DirecTV & DISH ...
... amplifies the DBS signals, pre-emphasizes high frequencies to compensate for cable slope and automatically adjusts signal output level for -10 dBm per RF SPECIFICATIONS - PAL10-T transponder (for 32 equal amplitude input transponders). • DBS compatibility: . . . . . . . . . . . . . . .DirecTV & DISH ...
lecture 5:bjt frequency response
... -Critical frequency & power measurement in dBmThe critical frequency, also known as the cutoff frequency or corner frequency, is the frequency at which the output power drops by 3 dB, which represents one-half of its midrange value. Ap(dB) = 10 log(0.5) = -3dB An output voltage drop of 3 dB represen ...
... -Critical frequency & power measurement in dBmThe critical frequency, also known as the cutoff frequency or corner frequency, is the frequency at which the output power drops by 3 dB, which represents one-half of its midrange value. Ap(dB) = 10 log(0.5) = -3dB An output voltage drop of 3 dB represen ...
Frequency combs and frequency dissemination for scientific and
... conversion between frequency and wavelength can be done without deterioration in the accuracy. The fundamental unit of length measurements, the wavelength λ is defined through the frequency of an electromagnetic signal f as λ = c0/f. In practice ...
... conversion between frequency and wavelength can be done without deterioration in the accuracy. The fundamental unit of length measurements, the wavelength λ is defined through the frequency of an electromagnetic signal f as λ = c0/f. In practice ...
Spur-Reduction Frequency Synthesizer Exploiting Randomly
... A. Spur-Reduction System For conventional synthesizers in lock mode, the PFD generates fast spikes that modulate the VCO control line and generate spurious signals at the reference frequency offset, the harmonics of which reduce SFDR performance in communication systems. The spur at the reference fr ...
... A. Spur-Reduction System For conventional synthesizers in lock mode, the PFD generates fast spikes that modulate the VCO control line and generate spurious signals at the reference frequency offset, the harmonics of which reduce SFDR performance in communication systems. The spur at the reference fr ...
SERIES RESONANT CIRCUITS RESONANCE
... energy absorbed by one reactive element is the same as that released by another reactive element within the system. Energy pulsates from one reactive element to the other. Once an ideal (pure L, C) system has reached a state of resonance, it requires no further reactive power since it is self-sustai ...
... energy absorbed by one reactive element is the same as that released by another reactive element within the system. Energy pulsates from one reactive element to the other. Once an ideal (pure L, C) system has reached a state of resonance, it requires no further reactive power since it is self-sustai ...
405-line television system
The 405-line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting.It was introduced with the BBC Television Service in 1936, suspended for the duration of World War II, and remained in operation in the UK until 1985, it was also used between 1961 and 1982 in Ireland as well as from 1957 to 1973 for the Rediffusion Television cable service in Hong Kong.Sometimes called the Marconi-EMI system, it was developed in 1934 by the EMI Research Team led by Sir Isaac Shoenberg. The figure of 405 lines had been chosen following discussions over Sunday lunch at the home of Alan Blumlein. The system was the first broadcast system in Britain to use interlacing, though EMI had been experimenting with a 243 line all-electronic interlaced system since 1933. In the 405 system the scanning lines were broadcast in two complementary fields, 50 times per second, creating 25 frames per second. The actual image was 377 lines high and interlaced, with additional unused lines making the frame up to 405 lines to give the slow circuitry time to prepare for the next frame; in modern terms it would be described as 377i.At the time of its introduction the 405-line system was referred to as ""high definition"", which it was compared to earlier systems, although of lower definition than 625-line and later standards.