EVAL-AD9837SDZ Analog Devices Inc, EVAL-AD9837SDZ Datasheet - Page 21

• Manufacturer Part Number: EVAL-AD9837SDZ
• Description: EVALUATION BOARD
• Manufacturer: Analog Devices Inc
• Series: -r

Specifications of EVAL-AD9837SDZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Embedded: No
• Utilized Ic / Part: AD9837
• Primary Attributes: -
• Secondary Attributes: Graphical User Interface
• Kit Application Type: Clock & Timing
• Application Sub Type: Clock Generator
• Kit Contents: Software CD, USB Cable
• Silicon Manufacturer: Analog Devices
• Silicon Core Number: AD9837
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

EVALUATION BOARD
The AD9837 evaluation board allows designers to evaluate the
high performance AD9837 DDS modulator with a minimum
of effort.
SYSTEM DEMONSTRATION PLATFORM
The system demonstration platform (SDP) is a hardware and
software evaluation tool for use in conjunction with product
evaluation boards. The
ADSP-BF527
through a USB 2.0 high speed port. For more information,
see the SDP board product page.
Note that the SDP board is sold separately from the AD9837
evaluation board.
AD9837 TO SPORT INTERFACE
The Analog Devices SDP board has a SPORT serial port that is
used to control the serial inputs to the AD9837. The connections
are shown in Figure 28.
EVALUATION KIT
The DDS evaluation kit includes a populated, tested AD9837
printed circuit board (PCB). The schematics of the evaluation
board are shown in Figure 30 and Figure 31.
The software provided in the evaluation kit allows the user to
easily program the AD9837 (see Figure 29). The evaluation soft-
ware runs on any IBM-compatible PC with Microsoft® Windows®
software installed (including Windows 7). The software is com-
patible with both 32-bit and 64-bit operating systems.
More information about the evaluation software is available on
the software CD and on the
SPORT_TSCLK
ADSP-BF527
processor with USB connectivity to the PC
SPORT_TFS
SPORT_DT0
Figure 28. SDP to AD9837 Interface
SDP board
AD9837 product
is based on the Blackfin®
FSYNC
SCLK
SDATA
AD9837
page.
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CRYSTAL OSCILLATOR VS. EXTERNAL CLOCK
The AD9837 can operate with master clocks up to 16 MHz.
A 16 MHz oscillator is included on the evaluation board. This
oscillator can be removed and, if required, an external CMOS
clock can be connected to the part. Options for the general
oscillator include the following:
•
•
POWER SUPPLY
Power to the AD9837 evaluation board can be provided from
the USB connector or externally through pin connections. The
power leads should be twisted to reduce ground loops.
AEL 301-Series oscillators, AEL Crystals
SG-310SCN oscillators, Epson Electronics
Figure 29. AD9837 Evaluation Software Interface
AD9837