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DAC for quick phase change

My customer could use help with DAC part selection, requirements below:

"I need to generate a sinusoid analog signal at 1.8 MHz which I must be able to change the phase quickly, ideally within 1 milliseconds without having to interface with an FPGA.  I would ideally prefer to have 10x oversampling, so 18 MSPS or higher, if possible, but I can probably live with less.  10 bit resolution is fine, but I might be able to live with less.

 Does TI sell any DAC or DDS which is easy to set up and quickly change the phase?  We would want to buy 8 eval boards to quickly test out in a product evaluation.  Due to the timing requirements, a USB or network interface probably wouldn’t work"

  • Hi Kevin,

    It might be best to go thru the product selection guide at TI.com and pair down the essentials for the customer. There are no specific stand along DDS devices.

    In terms of the number of evaluation boards. Eight is too many for us to support from our stock. If available at Digikey or Mouser, then the customer is free to order as many as they wish.

    Regards,

    Rob