|Chip Amps Amplifiers based on integrated circuits|
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|23rd May 2011, 06:36 AM||#3|
Join Date: Jul 2005
I've downloaded the Overture Design Guide xls file.
I'm trying to understand the negative feedback circuit.
Can someone elaborate the function of C3 & C4?
Which part of the circuit actually boosted the 30-70hz?
If let's say i need to boost higher(12db) and more bandwidth(30-100hz) , which component should I change?
Do I lower the gain by increasing the Ri to 2k ohm to get 12db+ bass boost?
According to the schematic, 30hz gain is 34db. From the design guide, I just do not get the correct value or something is missing in the circuit.
Thanks in advance
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