VLSI VS1011 is End-of-Life. The easiest way to replace VS1011 is using VS1003. Here is the success story how to replace VS1011.

Hardware:

1. Change CVDD voltage, CVDD voltage range 2.4V~2.85V PS: VS1011 DVDD (Digital Power Supply) = VS1003 CVDD (Core Power Supply)

Option, improve audio quality:

1. Change VS1011 26MHz crystal to 12.288MHz, modify SCI_CLOCKF setting
2. Change all capacitors of power supply from 10nF to 100nF

Software: If not set below in VS1011, then ignore the change:

1. change VS1011 patch to VS1003 patch
2. change SM_LAYER12 to SM_SETTOZERO

Reference:

1. https://www.vlsi.fi/fileadmin/app_notes/migrate11to03.pdf
2. https://www.vlsi.fi/fileadmin/news/EOL_VS1011E_2023.pdf
3. https://www.vlsi.fi/fileadmin/datasheets/vs1003.pdf
4. https://www.vlsi.fi/fileadmin/datasheets/vs1011.pdf