The design schematics for the AD9208 and AD9689 are identical except for the chip itself. However, the AD9208-3000ebz is more expensive than the AD9689-2000ebz. The AD9208-3000ebz is cheaper than the AD9689-2600ebz. Are there any better performances Or…
Need to get AD9689 eval card running on Quattro TB-KU-115 Kintex Ultrascale card. Got 8 lane JESD204 FPGA receiver ready however it appears I also need custom SPI controller to setup AD9689. However, will AD9689 run without any SPI writes if my JESD config…
AD9689 does have dither, although i am not sure if that is a contributor to the trend you are seeing. We do not recommend the AD9689 dither be disabled.
Thank you for your reply, I would like to know if the AD9689-2000EBZ can be directly identified by usb, regardless of the base board, because I want to use the AD9689-2000EBZ with the zc706.
thanks for response,
em..., I want to achieve 10GSPS by interleaving four ADC cores and I think about use two AD9689.
Is this possible?If not, is there other product choice that guarantee the same resolution 14bits as AD9689?
When I use the FS*4 mode of the AD9689, the PLL cannot be locked. The PLL can be locked when using other modes. Using the chip AD9689BBPZ-2000, the sampling rate is 1.25Gsps, the transceiver rate is 5Gbps, and the reference clock is 250M. The FS*4 mode…
In the AD9689 datasheet, for figure 148 should be as below
AD9689 clock impedance is 106 ohm as follows.
On the other hands there is 100 ohm as R222 on AD9689 demo board between clk+ and clk- looking below.
Why is R222 needed on the demo board?
It is AD9689-2000EBZ.