CDCI6214: Input 80MHz, Output 125MHz

Jason Haedt

Part Number: CDCI6214

Hello,

I am trying to use TICS Pro to generate an input of 80MHz and an output of 125MHz. Clock architect shows this is possible with a VCO of 2500. Unfortunately when I use TICS Pro pro, I can't seem to generate a VCO of 2500. Can you provide an example showing input of 80MHz and one output of 125MHz?

over 2 years ago

0 Jason Haedt over 2 years ago

TI__Expert 4600 points

I was able to get this configuration for 125MHz. Can you validate this configuration?

0 Kadeem Samuel over 2 years ago in reply to Jason Haedt

TI__Mastermind 22320 points

Jason,

I can let you know the result by tomorrow. Do you want the Y3 output enabled as well?

Thanks,

Kadeem

0 Jason Haedt over 2 years ago in reply to Kadeem Samuel

TI__Expert 4600 points

Thanks for the feedback. Just checking on the 125MHz for now.

0 Kadeem Samuel over 2 years ago in reply to Jason Haedt

TI__Mastermind 22320 points

Jason,

Good to know. I will let you know as soon as I have a response.

Thanks,

Kadeem

0 Jason Haedt over 2 years ago in reply to Kadeem Samuel

TI__Expert 4600 points

It was requested to have a 125MHz output and a 100MHz output. I don't see that this is possible. I can get to 104 and 125MHz.

0 Kadeem Samuel over 2 years ago in reply to Jason Haedt

TI__Mastermind 22320 points

Jason,

One change that I have made is setting pll_psa from 4 to 5. When I do this, I can set ch1_iod_div to 4, and ch3_iod_div to 5, for 125 MHz and 100 MHz outputs for CH1 and CH3, respectively.

With these settings, there are no issues.

Thanks,

Kadeem

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CDCI6214: Input 80MHz, Output 125MHz