• AD9779: Grounding and layout recommendation

    We have a DVB-T upconverter Design in progress, in which we use the AD9773.
    This DAC needs a digital and an analog supply and therefor a digital and a
    analog ground. In the layout of the evalboard which is mentioned in the
    datasheet, there is…

  • AD9779 and AD9779A_Difference between the two products

    Dear Team,

    Could I know what is the difference between the AD9779 and AD9779A?

    It looks like almost a similar products.

    I am looking forward to your advice.

    Thank you.

    Josh

  • AD9777 / AD9779: The two channel DACs, can they be used separately?

    I have two independent real data (for example from two different  DUC) to I
    input port and Q input port respectively of AD9779. The modulation is disabled,
    I only use two internal DACs to output two independent analog signals. Can the
    two DACs…

  • AD9779内部锁相环无法锁定

    外部参考时钟为90MHz,需要的到一个110MHz的中频信号,因此使用AD9779内部锁相环,进行8倍插值处理。reg01配置为11001000,reg8配置为01111100,reg9配置为10110111,reg10配置为11100000。锁定指示一直不能拉高,锁相环无法锁定,芯片不工作。检查了参考时钟,共模电压为400mv,vpp为900mv,时钟质量没有问题。

  • 请教下AD9779的配置问题。

    请教下AD9779的配置问题。如果采样时钟是200MHz,内部不插值、不调制。FPGA输出信号8MHz,速率是200mbps,DA输出一直是4MHz和8MHz。幅度分别是8dBm和-10dBm。我想输出的频率是8MHz,为什么输出是4MHz。没搞明白。

  • 请教下AD9779的配置问题。

    请教下AD9779的配置问题。如果采样时钟是200MHz,内部不插值、不调制。FPGA输出信号8MHz,速率是200mbps,DA输出一直是4MHz和8MHz。幅度分别是8dBm和-10dBm。我想输出的频率是8MHz,为什么输出是4MHz。没搞明白。

  • RE: 关于AD9779的问题

    This question has been closed by the EZ team and is assumed answered.
  • RE: Ad9779 Jitter

    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,
  • AD9779使用疑问

    AD9779描述的是双通道I、Q两路,16位的DA芯片,是否可以作为两路、单独的DA通道使用,如果可以,需要特别关注那些配置;其二,如果不可以,AD公司的那些芯片可以作为两路、独立的DA通道使用。谢谢。