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TDA4VM-Q1: Camera Trigger signal

Cherry Zhou
Mastermind 22235 points
Part Number: TDA4VM-Q1

Hi team,

Here're some questions from the customer may need your help:

Regarding the development of TDA4AL, the customer has following questions:

1) Is the OTP user side inside the HS chip readable? Or is it controlled entirely by DMSC and not visible to the user side?

2) Does the chip ID refer to the value in the registers? Is the ID separate and unique per TDA4? And the corresponding address bits in the TRM are 4300 0020h~4300 002Ch? 

3) Customer wants to use TDA4 to provide a dual-eye camera for external trigger signals (Triggers) and to be able to precisely adjust the delay between two trigger signals, preferably at the us level.

Is it required to connect the trigger signal to an IO that supports the timer? If so, should it be placed on timer in the MCU domain or timer in the main domain? 

4) Is there a power evaluation tool for the chip? For example, evaluate the approximate current value of each circuit.

5) Is there a hardware design checklist?

Could you help check this case? Thanks.

Best Regards,

Cherry

  • 0
    TI__Guru**** 477995 points

    Hi Cherry,

    Cherry Zhou said:

    3) Customer wants to use TDA4 to provide a dual-eye camera for external trigger signals (Triggers) and to be able to precisely adjust the delay between two trigger signals, preferably at the us level.

    Is it required to connect the trigger signal to an IO that supports the timer? If so, should it be placed on timer in the MCU domain or timer in the main domain?

    I will be able to answer only this question. For other questions, i will assign to HW team.

    Typically this signal is generated by deserializer, so can you please check if the deserializer that customer is using supports this feature?

    Regards,

    Brijesh

  • 0 in reply to Brijesh Jadav
    TI__Guru 54472 points

    Cherry, Can you post these as individual E2E tickets so they can be assigned to the right individuals.

    Thanks,

    Kyle

  • 0
    Prodigy 20 points

    @Brijesh,

    Hi Brijesh, 

    We are not using TI's serdes in our application. And not only we wants to trigger our camera but also we wants to trigger an external lidar for sensor fusion. Therefore we wants to use external frame sync solution which generates by TDA4. Can TDA4 generate a precise frame sync signal like 10Hz/20Hz? If so, which IO should I use?

    Thanks. 

  • 0 in reply to kcastille
    TI__Mastermind 22235 points

    Hi Kyle and Brijesh,

    Thanks for your support and Qian is my customer, you could keep discuss on Q3 here and the remaining questions have been posted on INT forum, I will reach out to the customer via email.

    Thanks and regards,

    Cherry

  • 0 in reply to Cherry Zhou
    TI__Mastermind 20090 points

    Cherry,

    I have used Timer modules to create a slow signal like this (10Hz).  If you look up TIMERn_CTRL (e.g. TIMER2_CTRL) you will find that you can select which pin is used by TIMERn.

    Kevin

  • 0 in reply to Kevin Lavery
    Prodigy 20 points

    Hi Kevin,

    Thanks for your answer. Which domain's timer should I use if I want ot create such low signal? Main domain or MCU domain? What is TI's suggestion?

    Thanks.

    Z.Q