Features and Benefits

  • Simple power connection using 6 V wall adapter and on-board LDO voltage regulators
  • LDOs are easily bypassed for power measurements
  • 5 ac-coupled differential LVPECL SMA connectors
  • 7 LVPECL differential headers for additional outputs
  • SMA connectors for
    2 reference inputs
    Charge pump output
    Clock distribution input
  • USB connection to PC
  • Microsoft Windows-based evaluation software with simple graphical user interface
  • On-board PLL loop filter
  • Easy access to digital I/O and diagnostic signals via
  • I/O header
  • Status LEDs for diagnostic signals

Product Details

The AD9520-x (hereafter referred to as AD9520) is a very low noise PLL clock synthesizer featuring an integrated VCO, clock dividers, and up to 24 outputs. The AD9520 features automatic holdover and a flexible reference input circuit allowing for very smooth reference clock switching. The AD9520 family also features the necessary provisions for an external VCXO.

The AD9520 evaluation board is a compact, easy-to-use platform for evaluating all features of the AD9520.

Markets and Technologies

Applicable Parts


Evaluation Software

4.38 M
AD9520 Evaluation Software Installer (Rev. 2.1.0)
This installer contains USB drivers that are both 32- and 64-bit compatible. Note: Older AD9520 evaluation boards will need to have the USB controller EEPROM re-flashed in order to use this driver.
7.35 M
Evaluation Board USB Flash Programmer
Contains the EXE file for re-flashing the USB EEPROM.
AD9520 Evaluation Board USB Flash Programmer Readme
EVB flash readme: This file contains instructions for re-flashing the USB controller on an older eval board so that the evaluation board is compatible with the newer 64-bit USB driver. The USB driver is also 32-bit compatible.
7.1 M
AD9520/22 Configuration Tool
This handy tool will automatically calculate divider values based on the user’s input/output frequencies, as well as assist with designing the loop filter based on the user’s parameters. Be sure to install the MATLAB runtime installer first.
171.38 M
MATLAB Runtime Installer for AD9520/22 Configuration Tool
Install this before installing the Configuration Tool (if not installed already.)


Pricing displayed is based on 1-piece.

Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.