Hi,
I have tlv320aic3120. All D-class output pins (SPKP,SPKM, numbers 19,22,23,26) disconnected.
After D-class driver power-up (page 1, register 32, bit D7 set to 1) the driver automatically shuts down.
Output short-circuit is impossible (all out pins disconnected, two device pieces tested).
Page 0, register 44, bit D7 is 1 (short-circuit detected) and
Page 1 register 32 bit D7 is 0 (D-class driver self-powered down)
SPKVDD is 5V, speaker 8Ohm.
If speaker is connected then device do not works the same way.
Please any suggestion, thanks.
Sezval.