Calculate IC equalizer frequencies and gain

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SUMMARY

The discussion centers on calculating the frequencies and gain of an AC circuit using the BA3823LS monolithic five-point stereo graphic equalizer IC. Users seek to determine how the capacitors (C56, C55, etc.) set the frequencies and how the resistances adjust the gain in decibels (dB). The datasheet for the BA3823LS provides application examples that include center frequencies and gain values, which are essential for understanding the equalizer's functionality. The main inquiry is whether there is a specific equation to calculate the gain based on the capacitance and resistance values used in the circuit.

PREREQUISITES
  • Understanding of AC circuit fundamentals
  • Familiarity with the BA3823LS equalizer IC
  • Knowledge of gain calculations in decibels (dB)
  • Basic electronics components: capacitors and resistors
NEXT STEPS
  • Research the gain calculation formula for equalizers using capacitors and resistors
  • Study the BA3823LS datasheet for detailed application examples
  • Learn about the relationship between frequency response and component values in audio circuits
  • Explore practical applications of graphic equalizers in audio engineering
USEFUL FOR

Electronics enthusiasts, audio engineers, and students seeking to understand the functionality of graphic equalizers and how to calculate their operational parameters.

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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