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DAC61416: Evaluation Board

Suprava Das
Prodigy 10 points

Part Number: DAC61416
Other Parts Discussed in Thread: DAC81416, DAC81416-08EVM, DAC81616

Tool/software:

I am using DAC61416 and PIC18F16Q40 in my design. I have the evaluation kit for the PIC(EV70C97A) but i don't have the Evaulation board for the DAC. Is there any available Evaluation kit for the DAC so that  the microcontroller code can be validated using the DAC evaluation board.

  • 0
    TI__Expert 6480 points

    Hi Suprava,

    You can use the DAC81416EVM for your DAC61416 part evaluation.DAC61416 is 12-bit variant of the DAC81416. 
    Link - https://www.ti.com/tool/DAC81416-08EVM 

    Thanks,
    Sanjay

  • 0 in reply to Sanjay
    Prodigy 10 points

    Hello Sanjay,

    I went through the datasheet of the Evaluation module. For interfacing the EVM  with external PIC i just need to connect the J9 pins of the DAC81416-08EVM to the PIC SPI control lines and need to open the J18 pin to disconnect the inbuilt FT4232 module. 

    Along with this DAC81416 is a 16-bit module whereas DAC61416 is a 12-bit module . So, need to change the code accordingly to effectively test it in the EVM.

    Wanted to confirm on the previous points and also please add any other points if required to get started with the evaluation module.

    Thanks,

    Suprava 

  • 0 in reply to Suprava Das
    TI__Mastermind 42253 points

    Hi Suprava, 

    Suprava Das said:
    i just need to connect the J9 pins of the DAC81416-08EVM to the PIC SPI control lines and need to open the J18 pin to disconnect the inbuilt FT4232 module

    Yes, this is correct. Make sure the VIO supply used on the EVM is compatible with the logic level of your PIC. The EVM has the option to use onboard 3.3V or 1.8V supplies, or you can connect an external supply. 

    Suprava Das said:
    So, need to change the code accordingly to effectively test it in the EVM

    Not necessarily. The data for all of the resolution variants is aligned left in the data register, so you can write 12-bit data to the DAC81616 part, and it will act as a 12-bit device. Alternatively, if you can write 16-bit data to the 12-bit part, the lower 4 bits will be ignored by the device. This makes it easy to have compatible code between the different resolution devices. 

     

    Best,

    Katlynne Jones