Calculate IC equalizer frequencies and gain

AI Thread Summary
The discussion focuses on calculating the frequencies and gain in an AC circuit using the BA3823LS equalizer IC, specifically how capacitors and resistors affect frequency response and gain. The user seeks equations to determine the defined frequencies and the corresponding boost or cut in gain (dB) for each frequency. They reference a datasheet that includes application examples with center frequencies and gain values but lack the necessary equations to perform these calculations. The user confirms that the capacitors in their diagram match those in the datasheet example, indicating they are relevant for their analysis. Overall, the inquiry centers on understanding the operational principles of the equalizer and how to quantify its effects.
tritonas00
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Homework Statement: Calculate frequencies/gain in an AC circuit given capacitance and resistance
Relevant Equations: Looking for them :P

Hi! I have this diagram:

eq.png


BA3823LS monolithic, five-point stereo graphic equalizer IC is used. Is there any way to calculate the frequencies (hz) that are defined and how much boost/cut gain (db) is applied in each frequency? If i'm reading this correctly the capacitors (C56, C55, ...) are used for setting the frequencies and the resistances on the side are used to cut/boost those frequencies?

I don't know anything about electronics and all the info i have is https://datasheetspdf.com/pdf-file/233435/Rohm/BA3823LS/1 where application examples of the BA3823LS are shown with the 5 center frequencies and some min/typ/max gain values.

This is not a homework, just trying to figure out what the above equalizer actually does. Thanks for your time and sorry if i'm posting this in wrong section.
 
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Ok, about the frequencies i just noticed that the capacitors used in the example application (pdf) are the same as the diagram shown. Show they would probably be the same:

fre.png


So what remains is the gain (db), how much they boost or cut those frequencies. For example those, if i'm reading this correctly:

res.png


Is there an equation to find the db based on those two values?
 

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