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ADC3662: On a own Board

Quirin Schinko
Prodigy 40 points
Part Number: ADC3662

Dear Sir or Madam,

for a research project I am trying to create an AD converter card to read out a radar sensor.

I have chosen the ADC3662 as the converter. Additionally, I bought the ADC 3662 EVM to finally test and compare the function. Like the adc 3662 evm, my ADC board is also to be connected to the tsw 1400 evm via a samtec plug. Since the board should be as small as possible, it should only have the most necessary components. Since the circuit diagram of the ADC 3662 EVM uses a lot of components, I am not quite sure which ones I really need. My input signals are already ac-coupled and I also have a trigger signal and a clock signal.

Maybe someone can help me here.

Thank you in advance


Kind regards

Quirin

  • 0
    TI__Mastermind 23750 points

    Hi Quirin,

    Are there any specific items in the schematic you are confused about keeping/removing? Will you be choosing an internal or external clocking approach? How are you planning to communicate with the device(s) for configurations?

    Thanks, Chase

  • 0 in reply to Chase W
    Prodigy 40 points

    I would like to get rid of everything that is not necessary. For the communication it would probably be best to use the same as for the evm? I will choose an external clock approach.

  • 0 in reply to Quirin Schinko
    TI__Mastermind 23750 points

    Hi Quirin,

    Ultimately it is up to you to decide what is and is not necessary. For example, it sounds like there is no requirement for DC coupled inputs, so unless you are wanting to use the amplifier to boost low power input signals, the entire amplifier and amplifier specific power solution can be removed. This also means any resistors or capacitors that were used as a pathing option can be removed as well which will help reduce BOM size by just a small bit. If you provide us with your schematic diagram, we are more than happy to let you know if there are any additional parts that may be removed.

    Thanks, Chase