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Capacitor selection - Audio decoupling capacitor for ...
https://electronics.stackexchange.com/questions/471714/capacitor-selection-audio-decoupling-capacitor-for-microphone
According to the datasheet, the typical configuration has a 1uF cap on the MIC1LP line, which I assume is for AC decoupling the audio input. However, on the EVM for the same caps they've used 0.47uF. The impedance of the mic we'll be using is around 6ohms and we need a good low-frequency response (our signal can go as low as 100Hz).
How to select audio amplifier input decoupling capacitor …
https://www.youtube.com/watch?v=xzORxnIpbCs
Selecting the proper value input coupling capacitor is important for good bass response.Patreon https://www.patreon.com/user?u=12254451Mail: PO box 362, Vand...
how can i calculate decoupling capacitor value ...
https://electronics.stackexchange.com/questions/374718/how-can-i-calculate-decoupling-capacitor-value
It's to supply current (the big one) and to react quickly (the small ones). So to size the big- consider current. Analog circuits, like sensors and stuff, would want 1uF and more. Digital- depends, but normally you put 0.1uF on each VCC input. For really fast stuff it would also be 1nF for low ESL. In most cases you will not feel a difference.
Capacitor Selection for Coupling and Decoupling …
https://passive-components.eu/capacitor-selection-for-coupling-and-decoupling-applications/
When selecting a capacitor for decoupling applications, it is critical to consider the electrical requirements of the design. The key parameters to consider when selecting a bypass capacitor include the lowest frequency of the AC signal and resistance value of the resistor. In most cases, the lowest frequency is 50 Hz.
What is the Use of a Decoupling Capacitor? | Sierra Circuits
https://www.protoexpress.com/blog/decoupling-capacitor-use/
The low-frequency noise decoupling capacitor value should lie between 1 µF to 100 µF. The high-frequency noise decoupling capacitor should lie between 0.01 µF to 0.1 µF. Low equivalent series resistance (ESR) and equivalent series inductance (ESL): Since a capacitor needs to provide current quickly, choose a capacitor with low ESR and ESL.
MT-101: Decoupling Techniques - Analog Devices
https://www.analog.com/media/en/training-seminars/tutorials/MT-101.pdf
capacitor (1/ωC), is equal to the reactance of the ESL (ωESL). Solving this equality for the resonant frequency yields: 2 ESL C 1 fRESONANCE π ⋅ = . Eq. 1 All capacitors will display impedance curves which are similar in general shape to those shown. The exact plots will be different, but the general shape stays the same. The minimum impedance
Coupling Capacitors
https://sound-au.com/articles/coupling-caps.htm
Using this value, response at 10Hz is -22mdB (milli-dB) down for a single stage, and -45mdB for 2 stages. Potentially more irksome to some is group delay and/or phase shift. A 1µF cap gives a group delay of 7.5ms (at 10Hz) for one stage, and 15ms for two stages. The corresponding phase shift is about 36° (single stage) and 72° (two stages).
PCM63P decoupling capacitors | diyAudio
https://www.diyaudio.com/community/threads/pcm63p-decoupling-capacitors.354292/
On the GDA-600, 10uF caps are used on pins 2,11,13,28 (analog and digital power supplies) and pin 4 (offset decoupling capacitor). A few questions: 1) In the attached snippet, it is mentioned that "larger values (up to 100uF) give slightly better SNR".
How to select decoupling capacitors | All About Circuits
https://forum.allaboutcircuits.com/threads/how-to-select-decoupling-capacitors.6333/
For decouping I would just say what my desired impedance is at a given frequency. So for audio, at 200Hz I would like my series input impedance to be 10, such that any next transistor stages are more than dominant with their input impedance being much higher. As such I would say 10 = 1/ (2*pi*200*C) and solve for C.
ecp audio diy: Some Notes on Coupling Capacitors
http://diy.ecpaudio.com/p/some-notes-on-coupling-capacitors.html
F = 1/ (2 * pi * C * R) where F is the frequency, C is the capacitance, and R is the impedence (impedence is resistance for AC.) As a last consideration, the capacitors will also induce phase distortions in frequencies up to about 10x higher than the 3db point.
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