ANALOG DEVICES UG-266 Service Manual

Evaluation Board User Guide

SCLK SDATAFSYNC

IOUTB

MCLK

AD9834

FSELECT

PSELECT

RESET

EVAL-SDP-CB1Z

ADP3301

USB

SPORT

GPIO

IOUT

MCLK XO

09791-001

UG-266

One Technology Way • P. O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: [phone] • Fax: [phone] • www.analog.com

Evaluating the AD9834 20 mW Power, 2.3 V to 5.5 V, 75 MHz Complete DDS

FEATURES

Full featured evaluation board for the AD9834

evaluation board

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

FUNCTIONAL BLOCK DIAGRAM

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 power­sensitive applications.

The E VA L -AD9834SDZ 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-AD9834SDZ board to maximize the usability.

Complete specifications for the AD9834 are provided in the
AD9834 data sheet, available from Analog Devices, and should
be consulted in conjunction with this user guide when using the
evaluation board.

PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.

Figure 1.

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