Dear customer,
I had a brief look at your question and confirm that TDA7233D is manufactured by ST, but there is no further information available on www.st.com, so moved your question to our "Analog and Audio" community. Maybe you get some reply there.
Otherwise we recommend
· to contact a local ST dealer (see here for complete list: https://www.st.com/content/st_com/en/contact-us.html) or
· submit a support request here: https://my.st.com/ols.
Good luck,
Kersten
