Generate a 2.4 GHz signal with a ADF4351 PLL Synthesizer Module and an arduino mini

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Hi, I am trying to generate a 2.4 GHz signal with a ADF4351 PLL Synthesizer Module and a arduino mini and I'am using an externeral 16 MHz signal for REFin but I am not sure what amplitude this signal can be without damaging the board. In the datasheet of the ADF4351 I saw this in the first table concerning the REFin signal : Input Sensitivity , min : 0.7 max : AVDD ,unit:V p-p, comment: Biased at AVDD/2; ac coupling ensures AVDD/2 bias. So I guess the amplitude has to be between 0,7 and 3,3 (AVDD) but I would like to be sure. thanks in advance for your answer.

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Hi, @charlesmort
Welcome to the forum.

https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum

Can you please tell us your electronics, programming, arduino, hardware experience?

A link to data/specs of the module would also help.

Have you Googled;

ADF4351 PLL Synthesizer Module arduino

Thanks.. Tom.. :grinning: :+1: :coffee: :australia:

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hi, I am student in electronics, I am working on an existing project that a student began months ago. I have his setup and code that should be working and it needs a 16 MHz REF in signal but he doesn't say what amplitude of this signal should be and I am not sure. I use this module :

with this 5 to 3,3 v converter : FT232RL FTDI USB 3.3V 5.5V to TTL Serial Adapter Module for Arduino FT232 Pro Mini USB TO TTL 232 - AliExpress
and a arduino mini. Here is the datasheet of the ADF4351 : ADF4351 Datasheet and Product Info | Analog Devices
I think the answer to my question is just in the datasheet of the ADF4351 in the first table for REFin you have the "power sensitivity " but I would like that you confirm that

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