Pi Speaker Alignment Theory
... be used to quantify signal amplitude, and they can all be used to describe a maximum value. But to connect a loudspeaker rated at 150 watts Peak-to-Peak to an amplifier rated at 100 watts will probably result in damage to the loudspeaker with the amplifier at half its rated output. Phase shifts are ...
... be used to quantify signal amplitude, and they can all be used to describe a maximum value. But to connect a loudspeaker rated at 150 watts Peak-to-Peak to an amplifier rated at 100 watts will probably result in damage to the loudspeaker with the amplifier at half its rated output. Phase shifts are ...
Transmitter Architectures
... consists of direct-digital frequency synthesizer (DDFS) followed by a digital-to-analog converter (DAC) DAC is power consuming DDFS/DAC switching degrades VCO clock phase noise Direct analog implementation eliminates the DAC ...
... consists of direct-digital frequency synthesizer (DDFS) followed by a digital-to-analog converter (DAC) DAC is power consuming DDFS/DAC switching degrades VCO clock phase noise Direct analog implementation eliminates the DAC ...
Signal Types and Terminations
... CMOS signals are distributed across a backplane having 50 ohm impedance traces, into one or more high impedance receivers. As such, there is an impedance mismatch. There are ways to deal with this impedance match, but between this and the inherit limits of the “rail to rail” swing, CMOS outputs are ...
... CMOS signals are distributed across a backplane having 50 ohm impedance traces, into one or more high impedance receivers. As such, there is an impedance mismatch. There are ways to deal with this impedance match, but between this and the inherit limits of the “rail to rail” swing, CMOS outputs are ...
SKY42068-355LF 数据资料DataSheet下载
... board acts as the heat sink, it must shunt as much heat as possible from the mixer. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. ...
... board acts as the heat sink, it must shunt as much heat as possible from the mixer. As such, design the connection to the ground pad to dissipate the maximum wattage produced to the circuit board. Multiple vias to the grounding layer are required. ...
Week 7: Motor Control Basics
... Now we have 50% duty cycle with 10Hz modulating frequency, and lamp will light up at half of max brightness (as if connected to 4.5V with no switch) ...
... Now we have 50% duty cycle with 10Hz modulating frequency, and lamp will light up at half of max brightness (as if connected to 4.5V with no switch) ...
A/D Converter Specifications (Cont.)
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
Coaxial Cable Protection
... current since a gas tube arrestor would never turn on (without a minimum one meter jumper cable) and the 1/4 wave stub would share surge current with the equipment. Since the quarter wave stub can only divide the low frequency and dc current, a significant portion flows towards the equipment input. ...
... current since a gas tube arrestor would never turn on (without a minimum one meter jumper cable) and the 1/4 wave stub would share surge current with the equipment. Since the quarter wave stub can only divide the low frequency and dc current, a significant portion flows towards the equipment input. ...
APS-7000 Series
... the Simulate mode simulate power outage, voltage rise, and voltage fall; ten sets of the Sequence mode allow users to define parameters and produce sine wave by editing steps; Ramp Control allows users to set the variation speed for output voltage rise and fall; Surge/Dip Control simulates DUT's inp ...
... the Simulate mode simulate power outage, voltage rise, and voltage fall; ten sets of the Sequence mode allow users to define parameters and produce sine wave by editing steps; Ramp Control allows users to set the variation speed for output voltage rise and fall; Surge/Dip Control simulates DUT's inp ...
A/D Converter Specifications (Cont.)
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
... the signal. This is known as the Nyquist rate. A signal can be exactly reproduced if it is sampled at a frequency F, where F is greater than twice the maximum frequency in the signal. If the sampling frequency is less than Nyquist rate, the waveform is said to be undersampled. ...
Practical 2P12 Semiconductor Devices
... can be considered to be composed of a “sandwich” of three adjacent layers of differently doped semiconductor, in this case silicon. For an npn transistor, the first layer, called the emitter, is heavily doped n-type, next to this is a very thin layer of p-type material known as the base, and the fin ...
... can be considered to be composed of a “sandwich” of three adjacent layers of differently doped semiconductor, in this case silicon. For an npn transistor, the first layer, called the emitter, is heavily doped n-type, next to this is a very thin layer of p-type material known as the base, and the fin ...
oscillator - Vidyarthiplus
... frequency produced by combining the different signal frequencies such as on different radio frequencies. 27. What is Master Oscillator? Master Oscillator is an Oscillator that establishes the carrier frequency of the output of a transmitter. 28. What is damped Oscillation? The electrical Oscillation ...
... frequency produced by combining the different signal frequencies such as on different radio frequencies. 27. What is Master Oscillator? Master Oscillator is an Oscillator that establishes the carrier frequency of the output of a transmitter. 28. What is damped Oscillation? The electrical Oscillation ...
Technician Question Pool - 2006
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
External Resistor Minimizes Digipot Loading
... Digital potentiometer ICs (digital pots, or digipots) are convenient for controlling voltage-controlled devices such as VCOs and as an economical alternative for a DAC. In a typical application (Figure 1), a MAX5160 digipot controls the frequency of a VCO, via a 3-wire interface. ...
... Digital potentiometer ICs (digital pots, or digipots) are convenient for controlling voltage-controlled devices such as VCOs and as an economical alternative for a DAC. In a typical application (Figure 1), a MAX5160 digipot controls the frequency of a VCO, via a 3-wire interface. ...
Technician Question Pool - 2006
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
Technician Question Pool - Southern Crescent Amateur Radio Club
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
... T1B08 What do the FCC rules mean when an amateur frequency band is said to be available on a secondary basis? A. ...
DC2222A - Linear Technology
... edges may compromise the SNR of the converter in the presence of high amplitude higher frequency input signals. Data Output Parallel data output from this board (0V to 2.5V by default), if not connected to the DC890, can be acquired by a logic analyzer, and subsequently imported into a spreadsheet, ...
... edges may compromise the SNR of the converter in the presence of high amplitude higher frequency input signals. Data Output Parallel data output from this board (0V to 2.5V by default), if not connected to the DC890, can be acquired by a logic analyzer, and subsequently imported into a spreadsheet, ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.