EVAL-CN0304-SDZ Analog Devices

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 FEATURES GENERAL DESCRIPTION Full featured evaluation board for the AD9834 The AD9834 is a 75 MHz, low power DDS device capable of evaluation board producing high performance sine and triangular outputs. It Graphic user interface software for board control and also has an on-board comparator that allows a square wave to data analysis be produced for clock generation. Consuming only 20 mW of Connector to the EVAL-SDP-CB1Z System Demonstration power at 3 V makes the AD9834 an ideal candidate for power- Platform (SDP) board sensitive applications. Various power supply and reference link options The EVAL-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 APPLICATIONS using this Blackfin-based development board. Biomedical sensors Bioelectrical impedance analysis A high performance, on-board 75 MHz trimmed general oscillator Electrochemical analysis is available to use as the master clock for the AD9834 system. Impedance spectroscopy Various links and SMB connectors are also available on the Complex impedance measurement EVAL-AD9834SDZ board to maximize the usability. Nondestructive testing 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. FUNCTIONAL BLOCK DIAGRAM ADP3301 MCLK XO EVAL-SDP-CB1Z MCLK PSELECT IOUT FSELECT GPIO AD9834 RESET IOUTB FSYNC SCLK SDATA USB SPORT Figure 1. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. A Page 1 of 16 09791-001UG-266 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Programming Method: Hardware or Software .........................6 Applications ....................................................................................... 1 Loading Frequency and Phase Registers ....................................6 General Description ......................................................................... 1 FSK and PSK Functionality ..........................................................6 Functional Block Diagram .............................................................. 1 Waveform Options ........................................................................6 Revision History ............................................................................... 2 Power-Down Options ...................................................................7 Evaluation Board Software .............................................................. 3 Hardware Options .........................................................................7 Installing the Software ................................................................. 3 Reset and Sweep ............................................................................7 Running the Software .................................................................. 4 Example of Operation ...................................................................8 Evaluation Board Software .............................................................. 5 Evaluation Board Schematics and Layout ......................................9 Setting up the Digital Interface ................................................... 5 Ordering Information .................................................................... 13 Select External MCLK Frequency .............................................. 6 Bill of Materials ........................................................................... 13 REVISION HISTORY 8/12Rev. 0 to Rev. A Change LK3 Position from In to Out, Table 1 .............................. 4 4/11Revision 0: Initial Version Rev. A Page 2 of 16