Tool/software:
Hello,
We are planning a new design with multiple TPA3128 on a board with DSP and DAC's.
DSP needs boot time, after which the DAC's initialize, so I want to keep the output stages dead until
audio path is up and running.
Two questions regarding this implementation of the TPA3128D2;
Concerning the mode selection: Is the state of the selection pin (1) latched at power-up only,
or latched at the release of SDZ (2) or can it be changed on the fly?
Second question concerns the charging of the input caps: only at initial power-up or also
after SDZ release?
kind regards
Geert de Vries