• RE: AD9694 SYSREF signal doesn't work

    the datasheet clearly explains how to arm sysref and operate the AD9694 in subclass1. 

  • RE: ADC driver for AD9694

    the anti-aliasing filter can be redesigned to suit your application needs. see this example below

    CN0227 Circuit Note | Analog Devices

  • RE: AD9694: Input Common Mode

    Hi,

    AC coupling is default. no need to change anything. 

    please see datasheet. the section clearly states that these registers need to be written to only when using dc-coupling.

  • 关于AD9694使用问题

    为了更好的摸底使用AD9694,根据AD9694-500ebz制作了一个小DEMO板,但是自己做的这个板子数据采集回来底噪在-98dbc左右(不加模拟时钟,空采),同样情况下我用ADI的AD9694-500ebz板空采的底噪在-115dbc左右。检查了电源电压跟AD9694-500ebz的电压一致(电源噪声也在50mv左右),请问这种情况下是什么原因造成了自己做的板子AD9694底噪这么高?

  • RE: Interfacing with the AD9694 SYSREF input

    AD9694 datasheet clearly lists the levels supported. we recommend DC coupling. if AC coupling, please use continuous sysref. for more information please refer to the datasheet

  • RE: Input matching network for AD9694

    the input impedance changes across frequency. the network was chosen to provide a single wideband option for frequencies from DC to 2GHz. You can download the s-parameter data for the inputs and create a matching network to suit your frequency range. 

  • RE: AD9694 Serial Data out pad gnd void

    hi, please take a look at the layout of the AD9694 customer evaluation board. gerber files are available here : EVALUATING THE AD9694 QUAD CHANNEL 500 MSPS ADC [Analog Devices Wiki]