AFE5401-Q1: Questions about DCLK in AFE5401

son juhwan

Part Number: AFE5401-Q1

hi. I have a question about DCLK of AFE5401.

Is DCLK is unconditionally output when a clock is input to the chip?

I'm inputting 25 MHz clock into the chip, but dclk is outputting 3.3v and the waveform doesn't occur.

I would appreciate it if you could let me know the conditions under which dclk can be output.

I'm sorry for the rudimentary question. thank you.

0 Shabbir Amjhera Wala over 1 year ago

Hi,

Yes DCLK is enabled by default. After powering up the device, did you apply hardware reset?

Thanks!

Regards,

Shabbir

0 son juhwan over 1 year ago in reply to Shabbir Amjhera Wala

Thank you for your reply!

I've increased the power of the input clock, and I get a sinusoidal wave that looks like a mixture of several frequencies.

but, I understand that the CMOS signal should be output.

Is this a problem with register settings?

Could you tell me the sequence for register initialization?

I'm so sorry for the inconvenience. Thank you.

0 Shabbir Amjhera Wala over 1 year ago in reply to son juhwan

Hi,

You can install AFE5401 GUI by requesting it over TI website.

After installation, browse to below folder. It has multiple configuration setting examples:

C:\Program Files (x86)\Texas Instruments\High Speed Data Converter Pro\Device GUIs\AFE5401-Q1\Scripts

Thanks!

Regards,

Shabbir

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