EVAL-CN-304-SDZ Evaluation Board User Guide
UG-266
One
Technology Way
•
P.O. Box 9106
•
Norwood, MA 02062-9106, U.S.A.
•
Tel: 781.329.4700
•
Fax: 781.461.3113
•
www.analog.com
Evaluating the
AD9834
20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS by Using
the
EVAL-CN-304-SDZ
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. B | Page 1 of 12
FEATURES
Full featured evaluation board (
EVAL-CN-304-SDZ
) for the
AD9834
Graphic user interface software for board control and data
analysis
Connector to the
EVAL-SDP-CB1Z
System Demonstration
Platform (SDP) board
Various power supply and reference link options
APPLICATIONS
Biomedical sensors
Bioelectrical impedance analysis
Electrochemical analysis
Impedance spectroscopy
Complex impedance measurement
Nondestructive testing
GENERAL DESCRIPTION
The
AD9834
is a 75 MHz, low power DDS device capable of
producing high performance sine and triangular outputs. It
also has an on-board comparator that allows a square wave to
be produced for clock generation. Consuming only 20 mW of
power at 3 V makes the
AD9834
an ideal candidate for power-
sensitive applications.
The
EVAL-CN-304-SDZ
board is used in conjunction with a
EVAL-SDP-CB1Z
board available from Analog Devices, Inc. The
USB to SPI communication to the
AD9834
is completed using
this Blackfin®
-
based development board.
A high performance, on-board 75 MHz trimmed general oscillator
is available to use as the master clock for the
AD9834
system.
Various links and SMB connectors are also available on the
EVAL-CN-304-SDZ
board to maximize the usability.
Complete specifications for the
AD9834
are provided in the
AD9834
data sheet, available from Analog Devices. Consult the
AD9834
data sheet in conjunction with this user guide when
using the evaluation board.
FUNCTIONAL BLOCK DIAGRAM
SCLK SDATA
FSYNC
IOUTB
MCLK
AD9834
FSELECT
PSELECT
RESET
EVAL-SDP-CB1Z
ADP3301
USB
SPORT
GPIO
IOUT
MCLK XO
09791-
001
Figure 1.
