TAS6424R-Q1: TAS6424R-Q1:DC diagnostic time MAX

user5184363

Part Number: TAS6424R-Q1

Tool/software:

DC diagnostic time in the datasheet only write the type 230ms,,but no have the MAX? ms,now we end the DC diagnostic time with 600ms, Please confirm:The MAX DC diagnostic time is ?ms, and the reason of 600ms(Retry?)?

8 months ago

0 Gregg Scott 8 months ago

TI__Mastermind 45065 points

Hello,

If all channels are open load, the maximum time is 590ms. This makes sense for a 600ms retry.

Regards,
Gregg Scott

0 user5184363 8 months ago

Intellectual 270 points

(1)If two channels are normal connect,two channels are open load（not used，no output LC ）,it also cost 590ms? Is there some method (register) to reduce the time to 230ms?

(2)The pop will happen when the input BCLK& Fs& DATA line abrupt open，is there some register to prevent it?

0 Gregg Scott 8 months ago in reply to user5184363

TI__Mastermind 45065 points

You can turn off the automatic DC load diagnostics. Then you can use Register 0x04 to select individual channels to run DC load diagnostics.
If you lose a clock, the TAS6422 goes into a fault condition and immediately places the output into a Hi-Z state. The only way to prevent this is not lose a clock signal while in play mode.

Regards,
Gregg Scott

0 user5184363 7 months ago in reply to Gregg Scott

Intellectual 270 points

(1)What is the time range about the DC-DIAG ramp/Settle time at address = 0x09 bit6 and bit5

(2)What is the difference between ramp & settle time

0 Gregg Scott 7 months ago in reply to user5184363

TI__Mastermind 45065 points

I am out of the office today. I will respond to your two new questions tomorrow. In the future, when you have new questions, please start a new thread. It will be easier for others to search for answers in the future.

Regards,
Gregg Scott

0 Gregg Scott 7 months ago in reply to user5184363

TI__Mastermind 45065 points

The setting time is the time between the finish of S2G/S2P testing and the start of the SL/OL testing.
The ramp time is the time to go from settling time to the detection time on the SL and OL testing. This also affects the ramp down from SL/OL detection time to completion of load diagnostics.

Regards,
Gregg Scott

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TAS6424R-Q1: TAS6424R-Q1:DC diagnostic time MAX