MCU control AD9513

Hi,

I need to control the divider OUT1 of AD9513 by means MCU,

is it possible realize by means ADG704, as shown in the scheme?

how best to implement can be controlled by using fewer components (to save pcb space)?


  • 0
    •  Analog Employees 
    on Apr 27, 2015 5:13 PM

    Moved this question on the AD9513 to the Clock and Timing community.

  • 0
    •  Analog Employees 
    on Apr 27, 2015 7:35 PM

    Hi Dmytro,

    I apologize, but I'm having trouble reading the schematic because of its low resolution.

    > I need to control the divider OUT1 of AD9513 by means MCU,

    > is it possible realize by means ADG704, as shown in the scheme?


    Do you mean change the divide ratio? It appears that you're connecting S7 and S8 for the ADG parts.  What you're doing is possible, although the AD9513 isn't intended to change the divider on the fly. That said, you should be able to change the divider by momentarily grounding the SYNCB pin, although I'm not 100% positive. However, it shouldn't be hard to verify this if your board is built.


    > how best to implement can be controlled by using fewer components (to save pcb space)?

    Try grounding the SYNCb pin and let me know.

    -Paul Kern

  • Сlick on the picture and open the high resolution image.

    About SYNCB pin. I do not need synchronization input and output. In the datasheet says that : "The SYNCB pin must be pulled up for normal operation. Do not let the SYNCB pin float".

    It's this new development and the board has not yet been made.

    Thank you. You are right on the fly to change the divisor is not intended. so I must first change the ADH, then start up ad9513.

    But I'm not sure about the proper use of ADH in this case.

  • 0
    •  Analog Employees 
    on Aug 2, 2018 3:00 PM
    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
    EZ Admin