Evaluation Board for
4-Channel 500 MSPS DDS with 10-Bit DACs
AD9959/PCB
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice.
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Devices. Trademarks and registered trademarks are the property of their respective owners.
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Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
© 2005 Analog Devices, Inc. All rights reserved.
EVALUATION BOARD BLOCK DIAGRAM
05698-
001
LPF
DDS 0
DAC 0 IOUT
DAC 0 IOUT
SYS
CLK
DAC 0 OUT
DAC 0 FILTER OUT
J2
J6
LPF
DAC 1 IOUT
DAC 1 IOUT
SYS
CLK
DAC 1 OUT
DAC 1 FILTER OUT
J1
J5
LPF
DDS 2
DAC 2 IOUT
DAC 2 IOUT
SYS
CLK
DAC 2 OUT
DAC 2 FILTER OUT
J3
J7
LPF
DDS 3
DAC 3 IOUT
DAC 3 IOUT
SYS
CLK
DAC 3 OUT
DAC 3 FILTER OUT
J4
J8
MUX
SYS
CLK
BALUN
XTAL
BUFFER/XTAL
OSCILLATOR
REFCLK
J9
REFCLK
MULTIPLIER
4
×
TO
20
×
J13
J11
J12
SYNC CLK
SYNC IN
SYNC OUT
÷
4
SYS
CLK
TIMING
AND
CONTROL
LOGIC
DDS 1
AD9959 EVALUATION BOARD
Figure 1.
FEATURES
Full-featured evaluation board for the AD9959
PC evaluation software for control and measurement of
the AD9959
USB interface
Graphic user interface (GUI) software with frequency sweep
capability for board control and data analysis
Factory tested and ready to use
APPLICATIONS
AD9959 performance evaluation
GUI control panel for learning AD9959 programming
GENERAL DESCRIPTION
This document serves as a guide to the setup and use of the
AD9959 evaluation board. The AD9959 is a multichannel
frequency synthesizer that incorporates four synchronous direct
digital synthesis (DDS) cores with many user-programmable
functions.
The evaluation board software provides a graphical user
interface for easy communication with the device along with
many user-friendly features such as the “mouse-over effect.”
Many elements of the software can be clarified by placing your
mouse over the element. Figure 19 shows how this feature
works when users place their mouse over the
Ref Clock
box.
This document is intended for use in conjunction with the
AD9959 data sheet, which is available from Analog Devices at
www.analog.com.
