Distortion is the alteration of the original shape (or other characteristic) of a signal representing an object, image, sound or waveform.

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Harmonic distortion and Nyquist rate (Spurs above the Nyquist rate of a DAC)

I have been reading an article during the past few days for a project I am doing and I've come across a point that bugs me out. It is about improving the spurious free dynamic range (SFDR) of DACs. ...
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239 views

Replacing a FET to avoid the body diode (audio switching)

Here is a circuit I've found online for switching a guitar signal, it uses a mechanical relay in order to rout the signal through a sound processing unit or around it, bypassing the circuit. ...
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144 views

SMD capacitors for a guitar distortion pedal

I'm trying to build a guitar distortion pedal. Alright, a bit about the motivation behind this project : It's my friend's birthday in a couple of days and I wanted to get him a distortion pedal cause ...
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170 views

Extremely noisy signal after voltage follower/buffer [closed]

I am trying to create a voltage follower for my CCD linear array. When I measure the signal with oscilloscope directly from the CCD outptut - the signal is reasonably clean. However, when I measure if ...
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506 views

Connecting ADC pin to op. amp. output distorts signal

I am using a STM32 Cortex M3 microcontroller and have configured the ADC. I have verified that the ADC works by measuring different voltages on the micro controller eval. board. When I connect my ADC ...
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246 views

Distortion in the output of amplifier circuit using uA741 + schematics and graphs

I'm simulating an audio amplifier with uA741 in pspice (student version). The input signal is a 0.1v (100mv) sine wave with frequency between 1kHz and 10kHz. The theoretical gain is 33 but in ...
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242 views

What type of potentiometer to use?

I'm making a Metal distortion pedal ill be using 6 potentiometers POT1 Distortion 250K POT2 low freq control 100K POT3 high freq control 100K POT4 mid 100K ...
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147 views

Total Harmonic Distortion

If a specific project specification says "...amplifier must be linear such that the harmonic distortions are maintained below -40dB...", does that mean that a THD of -30dB would meet the requirements ...
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348 views

What effect does bit depth of an ADC have on noise floor, THD, or any other specification?

I was told recently that there is a direct relationship between bit depth of a measurement adc and minimum measurable noise floor, which in turn affects accuracy of THD measurements of DUT. I'm afraid ...
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140 views

what is this distortion?

what is this distortion? This is the circuit where it is derived As you can see, it looks like there is a problem in the negative half cycle, its not really a straight clip. The waveform is ...
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464 views

Humming and Transmission issues

First of all, I am going through designing all of this because I did not find a ready made circuitry for my purpose which is mentioned later. If you know a circuitry that is well tested and does what ...
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227 views

What's the relationship between harmonic distortion and intermodulation distortion?

So if you take a sine wave and put it through a non-linear transfer function, it experiences harmonic distortion, which produces other sine wave components at integer multiples of the original. If ...