HI Analog team,
We are trying to generate 800 to 1312MHz LO signal from ADF4350 PLO. Step size shall be 10KHz.
We are using 24.576MHz LVCMOS clock as a reference.
Below are the schematic and register values used.
With this settings, we are unable to…
We are experiencing a weird thing that the ADF4350 LD pin is always HIGH, or the locked LED is ON even if the output frequency is wrong.
#1
For example, we have 10MHz REF IN and set ADF4350 to have 1600MHz output.
However the output is 2200MHz instead and…
There is a PCN from 2014 saying that ADF4350/4351 has switched to the sawn package.
However, I'm seeing ADF4350 devices with date codes of 2018/2019 that are in the punched package.
Are the punched package ADF4350s still being produced, or are these…
Hi. I am building a communication system and will be using ADF4350 as a local oscillator.
I need 500 MHz or 600 MHz constant output from both RF outputs.
What I've learnt from the related topics is that output waveform becomes more like a square wave rather…
Hello,
I'm using the ADF4350 to generate the clock for the AD9914 and I would like the frequency to be either 2^31 Hz = 2147.483648 MHz or 3500 MHz which I generate from a 100 MHz reference. Using the evaluation software gives me the values I need to…
Hello,
which elements do you mean by pull-up element? Is it L2 (originally 3.9 nH) according to the evaluation board user guide UG-110, page 6, for use of the output signal at J2? I am a beginner in electronics and sometimes have difficulties in understanding…
我在使用AD9739A评估板时遇到了一些问题。
我尝试着自己写SPI 的Verilog驱动代码来驱动评估板上的两个器件ADF4350和AD9739A。我确定我的代码是没有问题的，因为与AD9739A的SPI交互是没有问题的，但在与ADF4350通信时却出现了问题。在我配置完6个寄存器之后，评估板上的相位锁定指示灯并没有亮。在我尝试很多次之后，偶尔配置完之后是亮的。即使在我把R5寄存器的值设置成LD引脚输出高电平，也经常有时灯亮，有时没有反应的情况。下图是我用vivado中ILA抓取的一次SPI通信时序…
I am using these parts in a new design.
I know the SPI is working, the parts tune to the right frequency.
However, for production relaibility purposes, I want to use muxout to let the how know it is indeed communications qith these chips.
So I set reg…
