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How can we drive the internal clock for ADDI9020?

Question asked by Kaos on Dec 11, 2014
Latest reply on Dec 14, 2014 by Kaos

Dear Sir/Madam,

 

How can we drive the internal-clock-driver only supply power (AVDD=1.8V and HVDD/RGVDD/LDOIN=3.3V) to ADDI9020?

Do we need to do your "formal power up sequence" on page-45 datasheet)?

 

In fact, our customer is studying your good ADDI9020, and he is making his sample PCB to forward.

He would like to fix what is the best value of external capacitor and resister for best fitting external x-tal.

So he will make done this job to x-tal maker.

The way is done by a few ADDI9020s without around circuit maybe you know this way.

 

Your "CLO Oscillator" 0xC020[3] is set enable when default setting. So if we only power on, then your oscillator doesnt work I think.

Do you have a good idea?

 

Thanks Kaos

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