O A
... modulation. In modern communications systems such as long haul communication and high-bandwidth communication lines, modulated signals carried on a beam of light is commonly used. The relatively high frequencies of visual light can carry a lot more information than lower frequency radio waves. In op ...
... modulation. In modern communications systems such as long haul communication and high-bandwidth communication lines, modulated signals carried on a beam of light is commonly used. The relatively high frequencies of visual light can carry a lot more information than lower frequency radio waves. In op ...
CS1101: Lab 2 – Using Structs to Build Filters and Amplifiers
... An electrical engineer wishes to create an electrical toolbox of various types of filters. The three types of filters that he wishes to have are Butterworth, Chebyshev, and Elliptic filters. All filters have an order (number), a pass type (‘high, ‘low, ‘notch, or ‘bandpass), and a target frequency ( ...
... An electrical engineer wishes to create an electrical toolbox of various types of filters. The three types of filters that he wishes to have are Butterworth, Chebyshev, and Elliptic filters. All filters have an order (number), a pass type (‘high, ‘low, ‘notch, or ‘bandpass), and a target frequency ( ...
20091119084719!Filter_Instructions
... Bode plot where this occurs. To check your answer, this should correspond to a phase response of -45°. Finally, this circuit should display a gain response which falls off 20dB per decade. Confirm this is true manually in the time domain. To do so, close the Bode plot and open the Oscilloscope. Run ...
... Bode plot where this occurs. To check your answer, this should correspond to a phase response of -45°. Finally, this circuit should display a gain response which falls off 20dB per decade. Confirm this is true manually in the time domain. To do so, close the Bode plot and open the Oscilloscope. Run ...
Chapter 1 : Introduction to Electronic Communications
... distortion and as little thermal noise as possible. ...
... distortion and as little thermal noise as possible. ...
Document
... A supply with alternating output 6V r.m.s. is connected as shown. What is the peak voltage across the resistor and the peak current in the circuit? ...
... A supply with alternating output 6V r.m.s. is connected as shown. What is the peak voltage across the resistor and the peak current in the circuit? ...
File
... appears in pulses, the zero crossing of which can be used for turn-off of the thyristors. Suitable for loads with short time constants. ...
... appears in pulses, the zero crossing of which can be used for turn-off of the thyristors. Suitable for loads with short time constants. ...
THE INVENTION
... receiver gain and therefore effective range without exceeding the transmitter power required for conformance. Unlike any existing system, this increase in system range is equal to that afforded by the high gain antenna at the end of the link path with the least gain and not the more usual algebraic ...
... receiver gain and therefore effective range without exceeding the transmitter power required for conformance. Unlike any existing system, this increase in system range is equal to that afforded by the high gain antenna at the end of the link path with the least gain and not the more usual algebraic ...
Lecture 14
... core create a transformer. An AC voltage in one coil induces a voltage in the other. Ratio of voltages = ratio of turns. (more turns = higher voltage). ...
... core create a transformer. An AC voltage in one coil induces a voltage in the other. Ratio of voltages = ratio of turns. (more turns = higher voltage). ...
UNIT 12
... load in their output circuit (to convert changing currents to changing voltages) and need to be correctly biased (for linear operation). However, they are only required to amplify a band of frequencies and so have to be selective. Also, their design, especially for higher frequency work, has to allo ...
... load in their output circuit (to convert changing currents to changing voltages) and need to be correctly biased (for linear operation). However, they are only required to amplify a band of frequencies and so have to be selective. Also, their design, especially for higher frequency work, has to allo ...
The DatasheetArchive - Datasheet Search Engine
... The first local oscillator can be run using a free–running LC tank, as a VCO using PLL synthesis, or dtiven from an external c~stal oscillator, It has been run to 190 MHz.* A buffered output is available at Pin 20. The second local oscillator is a common base Colpitts type which is typically run at ...
... The first local oscillator can be run using a free–running LC tank, as a VCO using PLL synthesis, or dtiven from an external c~stal oscillator, It has been run to 190 MHz.* A buffered output is available at Pin 20. The second local oscillator is a common base Colpitts type which is typically run at ...
project2 - UTK-EECS
... transistor characteristics and compared with measured characteristics. (b) Design, build, and test current mirror circuits using either MOSFETs or BJTs. Procedure example using a 2N7000 MOSFET: (1) Use HP 4145B to plot transfer function (ID~VGS) and output characteristic (ID~VDS) curve of the transi ...
... transistor characteristics and compared with measured characteristics. (b) Design, build, and test current mirror circuits using either MOSFETs or BJTs. Procedure example using a 2N7000 MOSFET: (1) Use HP 4145B to plot transfer function (ID~VGS) and output characteristic (ID~VDS) curve of the transi ...
fm receiver kit - ABRA Electronics
... The original radio frequency in converted first to a 10.7MHz intermediate frequency (i-f) and amplified (Block 4). The 10.7MHz signal is then converted to 455kHz and amplified (Block 3). Noise is removed and the modulated signal is recovered from the 455kHz i-f signal (Block 2). The audio signal is ...
... The original radio frequency in converted first to a 10.7MHz intermediate frequency (i-f) and amplified (Block 4). The 10.7MHz signal is then converted to 455kHz and amplified (Block 3). Noise is removed and the modulated signal is recovered from the 455kHz i-f signal (Block 2). The audio signal is ...
emitter-follower
... CC Amplifier or Emitter Follower The common-collector(CC) amplifier is usually referred to as an emitter-follower(EF). The input is applied to the base through a coupling capacitor, and the output is at the emitter. The voltage gain of a CC amplifier is approximately 1, and its main advantages are ...
... CC Amplifier or Emitter Follower The common-collector(CC) amplifier is usually referred to as an emitter-follower(EF). The input is applied to the base through a coupling capacitor, and the output is at the emitter. The voltage gain of a CC amplifier is approximately 1, and its main advantages are ...
PDF: Introduction to Receivers
... A bandpass preselection filter is often used ahead of the mixer to suppress the image signal. The IF and LO frequencies must be carefully selected to avoid image frequencies that are too close to the desired RF frequency to be effectively filtered. In a receiver front end, out-of-band inputs at the ...
... A bandpass preselection filter is often used ahead of the mixer to suppress the image signal. The IF and LO frequencies must be carefully selected to avoid image frequencies that are too close to the desired RF frequency to be effectively filtered. In a receiver front end, out-of-band inputs at the ...
Lecture 24: Oscillators. Clapp Oscillator. VFO Startup
... apply to steady state power at the frequency of oscillation. There are two general approaches to starting an oscillator: (1) repeated amplification of noise, or (2) with an external startup signal (as in super-regenerative receivers). If G > L , then noise that meets the phase criterion (11.6) will ...
... apply to steady state power at the frequency of oscillation. There are two general approaches to starting an oscillator: (1) repeated amplification of noise, or (2) with an external startup signal (as in super-regenerative receivers). If G > L , then noise that meets the phase criterion (11.6) will ...