TI中文支持网Part Number:TAS6424E-Q1
as below show in datasheet, for the register of output phase, it described "010:reserved(default, must be changed), this means we must change this value in actual application, right? and how we can know which value is the best one for our application? thanks!
Kailyn Chen：
Hello,
liujian zhang said:this means we must change this value in actual application, right
Yes, we should change this value in actual application.
liujian zhang said:and how we can know which value is the best one for our application? thanks!
The output PWM phase control is used to manage conducted and radiated emissions. This feature allows the channel output PWM phase offset, relative to other channels, to be changed between 210, 225 and 240 degrees. As to which value should be best, I think it is depended on the EMI test and adjusted it under actual application.
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liujian zhang：
Hello, so you mean this parameter related to EMI, if we can pass EMI test, we can choose any one of them(101,110,111), right? and how we can confirm our setting is worked? it can measure by output waveform of each channel?
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Kailyn Chen：
Hello, there is no more information about how to configuration about this register, my personal opinion is that it could be used debug the EMI, the detailed information I need to confirm again.
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Kailyn Chen：
Hello, about which one is best is a good question. The phase change will be based on the EMI testing. The default phase of 0.
During our test measurements0,225,90,315 was the best Yours may be different when your EMI testing is done.
liujian zhang said: if we can pass EMI test, we can choose any one of them(101,110,111), right?
So when measure EMI test, there is one best configuration about the EMI feature. If all of the configuration are the same of the test, then you can choose any of that but I think it could choose only one to get to the optimal EMI.
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liujian zhang：
Hello, when we set to "101", we found the current consumption increase(300mA) compare to the default setting, and TAS6424E itself become very hot, what's the reason? thanks!
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Kailyn Chen：
Hello, as this is one new question, I recommend you to open another new post in order to answer your question as soon as possible.
