TFA 9879 fully operational from 2.5v to 5.5v ?

[sergemuller]

Hello,

I'm trying to use the TFA for an audio application and I would like to be sure that I understood correctly the product data sheet. It seems to me that a digital voltage supply between 1.65V and 1.95V should be externally provided. Is my understanding correct or is the 1.8v (STABA) output usable for this purpose?

Many thanks,

Serge

[TomasVaverka]

Hello Serge,

The 1.8V for VDDD needs to be supplied externally. The STABA (1.8V) cannot be used to supply VDDD.

Best regards,

Tomas