Separately powering AVCC-L and AVCC-R has audible advantages as reported by diyinhk [link]:
Separating the ES9018 AVCC_R/L power supplies provide a much more 3D sound stage. The location of every instrumentals is much much more clear
It’s like listening the differences between an upright piano and a grand piano.
This is really a breakthrough even after many layout improvements since the first version. I finally know why many diy’ers want dual mono config or at least a seperate AVCC_R/L power supply.
http://waltjung.org/PDFs/Improved_PN_Regs.pdf
https://hifiduino.wordpress.com/2013/06/26/building-the-99-es9018-dac-board-part-iii/
The plan is to use the following configuration:
Separating the ES9018 AVCC_R/L power supplies provide a much more 3D sound stage. The location of every instrumentals is much much more clear
It’s like listening the differences between an upright piano and a grand piano.
This is really a breakthrough even after many layout improvements since the first version. I finally know why many diy’ers want dual mono config or at least a seperate AVCC_R/L power supply.
http://waltjung.org/PDFs/Improved_PN_Regs.pdf
https://hifiduino.wordpress.com/2013/06/26/building-the-99-es9018-dac-board-part-iii/
The plan is to use the following configuration:
- 5V: AVCC shunt regulator
- 3.3V: Digital 3.3V and Digital 1.2V regulator
- 3.3V: clock
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