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GPL 3.0

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ICL8038
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ICL8038 Board 1

2 months ago 167
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Documents

Sheet_1

ICL8038 Board 1 Pcb WIP

ICL8038 Board 0 Pcb Original

BOM

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Comments (3)

Dutzu Reply

Hi,
How do you select different frequencies if all timing caps (C3,C4,C5,C6) are the same value (100nF)?


Thank you.

kisly.va Reply

Hi @Dutzu
I forgot to change the values of the capacitors to the correct ones. The following values are recommended for documentation and appnote:
470n = 20Hz   - 200Hz
47n   = 200Hz - 2kHz
4.7n  = 2kHz   - 20kHz
470p = 20kHz - 200kHz
I did not measure the capacitors on the original board, but I will definitely do it this weekend, and I will make changes to the scheme.

Dutzu Reply

@kisly.va
Thanks for the clarification.
Best regards!

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