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CDCM6208V2G: Calculations or equations used in the GUI

Intellectual 2110 points

Replies: 4

Views: 80

Part Number: CDCM6208V2G

Hi Team,

We received an inquiry from a customer regarding the calculations/equations used in the GUI. Here is his inquiry.

I am using CDCM6208V2 clock chip in one of my boards. It's defined to use all the 7 frequencies for different purposes. I saw the GUI you have with the evaluation board. The GUI calculates VCO frequencies, prescaler values, multiplier and dividers perfectly with the output frequencies we need. I am looking for the calculations/equations to do that for my application. Is it possible to get those?

Regards,

Danilo

  • Hi Danilo,

    Please inform your customer that the TICS Pro software GUI is able to be used without an EVM in order to calculate the VCO frequencies, dividers, prescaler values, etc. This is the most efficient way to calculate the values and also ensure everything falls within the specifications of the part. Without an EVM, the software will operate in Demo Mode, simulating as if an EVM was actually being used. The correct values and register settings will all be correctly generated and can be exported/saved for use.

    Please let me know if the customer still requires further information.

    Regards,

    Adam

  • In reply to Adam Siismets:

    Hi Adam,

    I sent the link to TICS Pro software GUI to the customer and he has further inquiries.

    "There are a couple of problems with using the GUI. Since we are writing our own drivers for CDCM to be used in a test environment, we cannot manually input the values we need in a separate GUI, we need to write a script to do it. Second, our programs are located in a linux environment.

    Since we are using CDCM chip in our own board, we want to write drivers to control it. The drivers need to know the multiplier, divider values to calculate the VCO frequency for a set of output frequencies we want. The CDCM datasheet has some equations but it doesn't explicitly say how to calculate the most optimum values. Since, the CDCM GUI from TI uses those calculations in it, I was wondering whether those could be provided to us. 
    We cannot use the GUI because we run in a linux environment and also our drivers won't be able to communicate to the GUI without human intervention."
    Regards,
    Danilo
  • In reply to Danilo Austria:

    Hi Danilo,

    Thank you for the response and all the details. It definitely helps me understand the situation more and I can see the customer's needs.

    I'm currently investigating the situation to determine if these equations are available to be sent. I will follow up with another post by the end of business on Friday PST. 

    Thank you,

    Adam

  • In reply to Adam Siismets:

    Hi Danilo,

    Due to the uniqueness of this particular case, I suggest that we move our conversation to email for a more detailed discussion. I have sent you a friend request on E2E. Please accept this request so that we may start the process.

    Best,


    Adam