Notes on Noise Reduction
... required computations can be done digitally. Unfortunately the sampling process introduces the possibility of aliasing, as illustrated in Fig. 3. Evidently input frequencies from zero to 1/(2∆t) are all distinguishable, but if higher frequencies are present they will be confused with some lower freq ...
... required computations can be done digitally. Unfortunately the sampling process introduces the possibility of aliasing, as illustrated in Fig. 3. Evidently input frequencies from zero to 1/(2∆t) are all distinguishable, but if higher frequencies are present they will be confused with some lower freq ...
Analysis and Compensation of Four Wave Mixing Products in
... This article provides concepts of Four Wave Mixing which is a type of Nonlinearity. Due to the widespread growth in wireless communication, network operators are facing difficulty in accommodating the growing traffic. WDM appears to be a viable solution to such problems posed by the micro cellular s ...
... This article provides concepts of Four Wave Mixing which is a type of Nonlinearity. Due to the widespread growth in wireless communication, network operators are facing difficulty in accommodating the growing traffic. WDM appears to be a viable solution to such problems posed by the micro cellular s ...
ISSCC 2015 / SESSION 25 / RF FREQUENCY GENERATION FROM
... sub-sampling PLL. The ADC-PD samples and digitizes the oscillation signal at every rising edge of the reference clock so that the crossing point of differential oscillation signals meets the reference clock edge as shown in Fig. 25.2.2. The sub-sampling loop can lock at every integer multiple of the ...
... sub-sampling PLL. The ADC-PD samples and digitizes the oscillation signal at every rising edge of the reference clock so that the crossing point of differential oscillation signals meets the reference clock edge as shown in Fig. 25.2.2. The sub-sampling loop can lock at every integer multiple of the ...
Project 1 - Synthesis of Musical Notes and Instrument Sounds with
... Most computers have a built-in analog-to-digital (A-to-D) converter and a digitalto-analog (D-to-A) converter (usually on the sound card). When we record our speech using a recorder, the A-to-D converter samples the analog speech signal, using a sampling rate fs , and converts it to a discrete-time ...
... Most computers have a built-in analog-to-digital (A-to-D) converter and a digitalto-analog (D-to-A) converter (usually on the sound card). When we record our speech using a recorder, the A-to-D converter samples the analog speech signal, using a sampling rate fs , and converts it to a discrete-time ...
Practical tips how to reduce EMI in buck converters
... The RL snubber must be placed close to the power stage input node, keeping the input loop small. One drawback of the RL snubber is that it creates impedance Rs in the switching loop the high frequency region. During the very fast switch transitions, the switch current pulse will create a short volta ...
... The RL snubber must be placed close to the power stage input node, keeping the input loop small. One drawback of the RL snubber is that it creates impedance Rs in the switching loop the high frequency region. During the very fast switch transitions, the switch current pulse will create a short volta ...
actuators
... Building Blocks – sensor features • Precision: How consistent the sensor is in measuring the same value under the same operating conditions over a period of time? • Sensitivity: How small a change in the controlled variable the sensor can measure? • Linearity: Exaggerated relationship between the i ...
... Building Blocks – sensor features • Precision: How consistent the sensor is in measuring the same value under the same operating conditions over a period of time? • Sensitivity: How small a change in the controlled variable the sensor can measure? • Linearity: Exaggerated relationship between the i ...
modulation5 - WordPress.com
... 221. The negative half of the AM wave is supplied by a/an _______ on a diode modulator. A. B. Transformer C. Capacitor D. Inductor 222. One of the following can produce AM. A. Having the carrier vary a resistance B. Having the modulating signal vary a capacitance C. Varying the carrier frequency D. ...
... 221. The negative half of the AM wave is supplied by a/an _______ on a diode modulator. A. B. Transformer C. Capacitor D. Inductor 222. One of the following can produce AM. A. Having the carrier vary a resistance B. Having the modulating signal vary a capacitance C. Varying the carrier frequency D. ...
SECTION-4-Chapter 12
... Two remarks must be made to this overview. First, the isolation barrier is not only advantageous for protection reasons. It also avoids ground loops and interference, especially if the power system contains noise at high frequencies, which is often the case if switching converters are present nearby ...
... Two remarks must be made to this overview. First, the isolation barrier is not only advantageous for protection reasons. It also avoids ground loops and interference, especially if the power system contains noise at high frequencies, which is often the case if switching converters are present nearby ...
ekt 313 tutorial 4
... variable frequency local oscillator, a frequency mixer, a band pass filter and intermediate frequency (IF) amplifer, and a demodulator plus additional circuitry to amplify or process the original audio signal (or other transmitted information) 3. What are the advantages that the superheterodyne rece ...
... variable frequency local oscillator, a frequency mixer, a band pass filter and intermediate frequency (IF) amplifer, and a demodulator plus additional circuitry to amplify or process the original audio signal (or other transmitted information) 3. What are the advantages that the superheterodyne rece ...
Lecture January 27
... whether the gage is in tension or compression. • The output of a bridge circuit can be centered on 0.0 • The output of a voltage divider circuit will necessarily read between 0.0 and the supply voltage. ...
... whether the gage is in tension or compression. • The output of a bridge circuit can be centered on 0.0 • The output of a voltage divider circuit will necessarily read between 0.0 and the supply voltage. ...
MAX2753EVKIT - Maxim Integrated
... device’s RF performance and requires no additional support circuitry. The signal outputs use two SMA connectors to facilitate the connection to RF test equipment. ...
... device’s RF performance and requires no additional support circuitry. The signal outputs use two SMA connectors to facilitate the connection to RF test equipment. ...
ISSCC 2008/SESSION 6/UWB POTPOURI/6.2
... filter (BPSF). The output pulses are modulated by the TX binary data. The signal is then upconverted by a mixer and amplified by a driver amplifier (DA) prior to the antenna. On the RX side, the weak signal is amplified by an LNA, is downconverted by I/Q mixers and is low-pass filtered to recover th ...
... filter (BPSF). The output pulses are modulated by the TX binary data. The signal is then upconverted by a mixer and amplified by a driver amplifier (DA) prior to the antenna. On the RX side, the weak signal is amplified by an LNA, is downconverted by I/Q mixers and is low-pass filtered to recover th ...
Spectrum analyzer
A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that a spectrum analyzer measures is electrical, however, spectral compositions of other signals, such as acoustic pressure waves and optical light waves, can be considered through the use of an appropriate transducer. Optical spectrum analyzers also exist, which use direct optical techniques such as a monochromator to make measurements.By analyzing the spectra of electrical signals, dominant frequency, power, distortion, harmonics, bandwidth, and other spectral components of a signal can be observed that are not easily detectable in time domain waveforms. These parameters are useful in the characterization of electronic devices, such as wireless transmitters.The display of a spectrum analyzer has frequency on the horizontal axis and the amplitude displayed on the vertical axis. To the casual observer, a spectrum analyzer looks like an oscilloscope and, in fact, some lab instruments can function either as an oscilloscope or a spectrum analyzer.