Hello
My customer will use TAS5558-TAS5142DKD for FY2018 product ( currently in ES situation).
Here customer had questions below.
Please advise.
Q1 Reg 0xDE bit D24
What is the difference between " Use Frequency Scaling" and "Use Sampling Rate Conversion Mode" ?
We can see the description of " Frequency Scaling" on page 107 "8.3.1 Frequency Scaling AM Avoidance",
but I can not find detail description about "Sampling Rate conversion mode".
Q2 Reg 0xDE bit D24
Which is better between Use Frequency Scaling and Use Sampling Rate Conversion Mode ? ( in case use ASRC or not use ASRC?)
Q3 Reg 0xDE bit D19:D18
What is the difference between Sequence 1~4 ? What is the internal operation on Sequence 1~4? Customer see following app note,
but we don't understand sequence 1~ 4 well.
This app note suggests sequence2 as example , but it should be depend on application (layout).
Customer want to know technical background /principal in detail previously in order to reduce all of test sequence1~ sequence 4 .
http://www.ti.com/lit/an/slea040/slea040.pdf
It may have similar post, but please let me know again https://e2e.ti.com/support/amplifiers/audio_amplifiers/f/6/p/523398/1912807
Customer is testing their ES board, set sequence1, AM= 768KHz and AM mode enable, then they found switching frequency
moves from 384KHz to 360KHz. So, PWM swtiching frequency x 2 not equal to AM frequency , but +/-20KHz should be different
by AM avoidance function.
Best Regards
