Other Parts Discussed in Thread: TAS6424
Hello guys,
i have an problem with TAS6424-Q1. It is solded on my own PCB, not an demo board.
I2S signal seems to be ok. I have checked all timings. Only MCLK is not 100% correct.
I have following parameters of I2S:
Sample rate (FSYNC Pin) 44.1kHz (measured)
16-bit audio data per channel
SCLK rate is 64xfs (measured)
MCLK is about 24.27MHz (not really correct, i know), but i dont think, what is the problem.
Hardware is nothing special. Only an mikrocontroller and TAS6424. TAS6424 ist connected according conditions from datasheet. VDD is 12V, Channels 3 and 4 are not in use.
My configuration over i2c is
Register 0x00, value 0x80 - Device Reset
Register 0x14, value 0xFF - Report all fails to Fault Pin
Register 0x04, value 0x05 - Channel 1 and 2 play
and nothing happens.
If i read register 0x0F (Channel State-Reporting Register) Channel 1 and 2 are in DC load diagnostics
So i have read register 0x0C (DC Load Diagnostics Report) und got 0x44. 0x44 means Short-to-power detected at all channels, but it can not be.
Ok, a have turned the DC diagnostics off Register 0x09, value 0x81 - Abort diagnostic and disable automatic diagnostic
But it also doenst help. If i read register 0x0F (Channel State-Reporting Register) Channel 1 and 2 are in Hi-Z
I can not activate the outputs.
Someone any idea?
At the time i activate the outputs I2S is allready transmitting sounddata.
Thank you
Best regards