Tiny Crystal Oscillator
... LP2980 is a low-dropout 3.3 volt regulator and the NC7504M5 is a single-gate AC logic IC. The crystal may be any fundamental AT-cut from below 5 MHz to over 20 MHz. The feedback is through a voltage divider to keep the crystal drive level low for good aging and short-term stability. The output is a ...
... LP2980 is a low-dropout 3.3 volt regulator and the NC7504M5 is a single-gate AC logic IC. The crystal may be any fundamental AT-cut from below 5 MHz to over 20 MHz. The feedback is through a voltage divider to keep the crystal drive level low for good aging and short-term stability. The output is a ...
Series_RLC_Circuit
... The students vary the frequency of the input from the signal generator while observing the globe. At resonance the globe will be brightest. They then vary the inductance for a fixed input frequency and again look for resonance. The Physics The globe acts as a resistor, dissipating energy as heat and ...
... The students vary the frequency of the input from the signal generator while observing the globe. At resonance the globe will be brightest. They then vary the inductance for a fixed input frequency and again look for resonance. The Physics The globe acts as a resistor, dissipating energy as heat and ...
Experiment #9 Report (and pre-lab)
... end of the report) the transfer function | 11. For the above plot, state your conclusions under the plot? Also identify the two cut-off frequencies in the plot. ...
... end of the report) the transfer function | 11. For the above plot, state your conclusions under the plot? Also identify the two cut-off frequencies in the plot. ...
... What is the basic difference between coherent binary FSK and non-coherent binary FSK (i.e. what does coherent or non-coherent mean)? Please draw the block diagram of the binary FSK receiver for coherent and non-coherent binary FSK respectively. (4%) (c) Considering the coherent binary FSK system, as ...
Linear Circuit Elements
... The numeric value of the signal frequency f has significant practical ramifications to us electrical engineers, beyond that of simply determining the numeric value G ω . These practical ramifications include the packaging, manufacturing, and interconnection of electrical and electronic devices. T ...
... The numeric value of the signal frequency f has significant practical ramifications to us electrical engineers, beyond that of simply determining the numeric value G ω . These practical ramifications include the packaging, manufacturing, and interconnection of electrical and electronic devices. T ...
High Pass Filter
... * We know that Xc=1/(2pi)fC. C is fixed and therefore Xc is proportional to 1/f. We also know that the Power=i^2R. From these, as the frequency increases, Xc decreases. As this impedance has decreased, more current can pass through (i increases) and thus Power also increases. Therefore power increas ...
... * We know that Xc=1/(2pi)fC. C is fixed and therefore Xc is proportional to 1/f. We also know that the Power=i^2R. From these, as the frequency increases, Xc decreases. As this impedance has decreased, more current can pass through (i increases) and thus Power also increases. Therefore power increas ...
Principles of Electronic Communication Systems
... A pulse-averaging discriminator uses a zero crossing detector, a one shot multivibrator and a low-pass filter in order to recover the original modulating signal. The pulse-averaging discriminator is a very highquality frequency demodulator. Originally this discriminator was limited to expensive ...
... A pulse-averaging discriminator uses a zero crossing detector, a one shot multivibrator and a low-pass filter in order to recover the original modulating signal. The pulse-averaging discriminator is a very highquality frequency demodulator. Originally this discriminator was limited to expensive ...
crystal sets to sideband
... Triode and pentode oscillators Old-tech voltage regulation – big, crude, expensive, but beautiful The travails of triode tubes The oscillator and buffer The final amplifier – triodes chirp The transmitter power supply An inadequate supply from a 1935 radio A good power supply made from cheap, modern ...
... Triode and pentode oscillators Old-tech voltage regulation – big, crude, expensive, but beautiful The travails of triode tubes The oscillator and buffer The final amplifier – triodes chirp The transmitter power supply An inadequate supply from a 1935 radio A good power supply made from cheap, modern ...
(CPUfreq/freq)/2) * CPUclockTicTime Why?
... • The Boe-Bot IR detectors are tuned to detect IR at a modulated frequency of 38.5 khz. Khz = 1000 Herz = 1000 cycles per second • Thus, the Boe-Bot IR detectors will respond only to an IR signal that flashes on/off about 38,500 times a second. • This will filter out: sunlight and bodies (0 khz) and ...
... • The Boe-Bot IR detectors are tuned to detect IR at a modulated frequency of 38.5 khz. Khz = 1000 Herz = 1000 cycles per second • Thus, the Boe-Bot IR detectors will respond only to an IR signal that flashes on/off about 38,500 times a second. • This will filter out: sunlight and bodies (0 khz) and ...
LINEAR VARIABLE DIFFERENTIAL TRANSFORMER LDTW 5 L
... windings and a movable core. The primary winding is normally energized from a 5 kHz supply at 5 VRMS, although other supply voltages and frequencies can be used. The two secondary windings are connected in series opposition so that the resultant output voltage is proportional to the core displacemen ...
... windings and a movable core. The primary winding is normally energized from a 5 kHz supply at 5 VRMS, although other supply voltages and frequencies can be used. The two secondary windings are connected in series opposition so that the resultant output voltage is proportional to the core displacemen ...
ATE32CutSheet - Actuation Test Equipment Company
... The Model ATE-32 PT/VT Interface Module is a signal conditioner that converts the output of the Potential Transformer of an electric generator to a 24 Volt pulse train suitable for input to a PLC-based frequency counter. Input amplitude range is 0.2 VRMS to 180 VRMS. Input frequency range is from 6 ...
... The Model ATE-32 PT/VT Interface Module is a signal conditioner that converts the output of the Potential Transformer of an electric generator to a 24 Volt pulse train suitable for input to a PLC-based frequency counter. Input amplitude range is 0.2 VRMS to 180 VRMS. Input frequency range is from 6 ...
Physical Science Worksheet: Chapters 14
... 21. When a wire is moving perpendicular to a magnetic field, the force on the charges is A) at a minimum. B) at a maximum. C) zero. D) All of the above 22. A wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of A) 50 m. B) 0.5 m. C) 20 m. D) 0.2 m. 23. The rate at which light e ...
... 21. When a wire is moving perpendicular to a magnetic field, the force on the charges is A) at a minimum. B) at a maximum. C) zero. D) All of the above 22. A wave with a frequency of 0.5 Hz and a speed of 10 m/s has a wavelength of A) 50 m. B) 0.5 m. C) 20 m. D) 0.2 m. 23. The rate at which light e ...
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.