Sir,
My customers using TAS5729 in TV application, they ODM for S-customer using TAS5729 around 3 years but found no sound issue now.
Here are customer test step and what I check as below,
- TV turn off, then put TV system in 0 degree C chamber 30 mins.; re-turn-on TV, TAS5729 has no sound.
- The same condition as above, I using EVM I2C control customer's PCB TAS5729 and "CONNECT" by GUI, it still no sound. (read back 0x05 is 00, 0x07 is 01-10, everything looks fine)
- Read 0x02(Fault), no error(0x00).
- I checked o/p DC level is correct.
- It will have sound after 2~3 mins. (still in 0 degree C chamber)
- I believe TAS5729 always survey, no die, no protection; that’s why it will recovery after 2~3 mins.
- SWAP AB chips/PCB, the issue follow chips.
Do you have experience or idea what happen?
Thanks, Ian.