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Evaluation Board User Guide
UG-075
One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Te l: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
AD9516-x, AD9517-x, and AD9518-x Evaluation Board
See the last page for an important warning and disclaimers. Rev. 0 | Page 1 of 16
FEATURES
Simple power connection using 6 V wall adapter and
on-board LDO voltage regulators
LDOs are easily bypassed for power measurements
8 ac-coupled differential LVPECL SMA connectors
2 ac-coupled LVPECL differential headers
2 dc-coupled differential LVDS SMA connectors that are
reconfigurable to four CMOS SMA connectors
2 dc-coupled LVDS differential headers that are
reconfigurable to four CMOS connectors
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
APPLICATIONS
Clocking of analog-to-digital and digital-to-analog
converters up to 2.9 GHz
Networking and communications line cards
Test and measurement equipment
Wireless base stations, controllers
Clock cleanup/jitter attenuation
Clock distribution
GENERAL DESCRIPTION
The AD9516-x, AD9517-x, and AD9518-x are very low noise
PLL clock synthesizers featuring an integrated VCO, clock
dividers, and up to 14 outputs. The AD9516 features automatic
holdover and a flexible reference input circuit allowing for very
smooth reference clock switching. The AD9516 family also
features the necessary provisions for an external VCXO.
The AD9516 evaluation board is a compact, easy-to-use
platform for evaluating all features of the AD9516. This user
guide covers all six versions of the AD9516 family, as well as
the AD9517 and AD9518 families (hereafter referred to as
AD951x). The AD9516, AD9517, and AD9518 differ only
in package size, and the number of outputs. The evaluation
software main window for the AD9517 and AD9518 reflects
fewer outputs, but the operation is identical for all devices.
Although the Quick Start Guide to the AD9516 PLL section
applies specifically to the AD9516-3, increasing the N (feed-
back) divider and channel divider increases the VCO frequency
to the allowable frequency range of other AD9516 versions.
For the AD9516-5, which lacks an internal VCO, certain
portions of this document that apply to the internal VCO
(such as VCO calibration) can be ignored.
For convenience, detailed information from the AD9516 data
sheet has been included here. Use this user guide in conjunction
with the AD9516, AD9517, and AD9518 data sheets, as well as
additional documentation available at www.analog.com.
AD9516 EVALUATION BOARD
08745-001
Figure 1.
