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electrified / rc2014-ym2149

KiCad schematics and gerbers for a YM sound card for the RC2014. See it in action here: https://www.youtube.com/watch?v=-iLwi9FagFE
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C6 C7 capacitor values #3

Closed b1ackmai1er closed 1 year ago

b1ackmai1er commented 6 years ago

Hi The original melodik schematic shows 4.7uF caps on the audio output but your RC2014 circuit uses 470uF. Is this change intentional? It appears to be a very high value compared to other circuits which vary from 1uF to 10uF. Regards Phil

electrified commented 6 years ago

Hi there, No this was not intentional - I think it's a mistake! The main purpose of the capacitors is to block the DC offset which is present on the YM2149s output pins.

Thanks for pointing this out, when I find time I'll try some lower values and see what the effect is.

electrified commented 1 year ago

This has now been fixed in the latest schematics.