Did you also set R0x16 bit  = 1? This sets the B-counter to a divide by 1 state and allows the prescaler value to determine the entire N divide.
From a performance perspective, using the AD9520-1 eval kit will be exactly the same if you either bypass the VCO, or replace the AD9520-1 on the EB with an AD9520-5.
Our customer had simulated the AD9520-x w/ using the ADIsimCLK1.7.With the following the questions, the limited functions are bug ? or default setting ?
The limited functions are only on ADIsimCLK1.7, not on the each devices ?
I want to simulate a loop filter for the AD9520-5 using an external VCO in ADIsimCLK.
For the AD9520-5 there is only a configuration option for clock distribution with disabled PLL (no loop filter, no external VCO).
Can I instead select another…
> I would like to ask i am considering working with one of the components AD9520-4/ AD9514/5
> for DDS Clocking and, and i see alot of applications use the AD9520-4 for this purpose,
> but this component has a lot of Registers for the…
I'm using the AD9520-1. I want to use the automatic reference switchover.
REF1 pin = 10MHz system clock. DC-Coupled
REF2 pin = 10MHz local oscillator. DC-Coupled
When I fix the AD9520 to the REF1 pin, it runs fine. When I fix the AD9520 to…
We have 1:12 fanout buffers like the ADCLK954 (LVPECL) and ADCLK854 (LVDS) that are extremely low jitter and low skew:
I just wanted to let you know that I sorted out the issue. I was using the AD9520-5 and AD9522-5 which doesn't have an internal VCO which would cause the program to crash when i tried to use the zero delay function. When i select any other…
We are using a AD9520-1 , in two modes
1) In mode 0 it uses internal VCO which generates 2.52 Ghz, VCO divider with division value 6, so the output frequency is 420Mhz.
Q.) can i bypass every divider except the VCO divider?
2) In mode 1 it…