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Class D Switching Power Amplifiers and Power D/A conversion

KRC-86B BT module
KRC-86B BT module
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Old 15th September 2017, 08:38 AM   #1
elpi487 is offline elpi487
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Default KRC-86B BT module

Hello, I'm trying to figure out what ICs are used on the KRC-86B module. especially looking out for op amp to upgrade. I can see on the board there is a SOIC-8 package which has nothing written on it. Curious what it is.

https://ae01.alicdn.com/kf/HTB1V2pcS...Audio-font.jpg

Any ideas?
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Old 15th September 2017, 12:45 PM   #2
theAnonymous1 is offline theAnonymous1  United States
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Something to do with the multiplexer and auto source selection?

This topic isn't Class-D related though.
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Old 15th September 2017, 02:07 PM   #3
elpi487 is offline elpi487
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Quote:
Originally Posted by theAnonymous1 View Post
Something to do with the multiplexer and auto source selection?

This topic isn't Class-D related though.


It wires into a class d amp am trying to improve quality of audio going in by upgrading op amp if they have any.
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