參數(shù)資料
型號(hào)： EVAL-AD9832SDZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 14/28頁(yè)
文件大小： 0K
描述： BOARD EVAL FOR AD9832
標(biāo)準(zhǔn)包裝： 1
系列： *
Data Sheet
AD9832
Rev. E | Page 21 of 28
EVALUATION BOARD
SYSTEM DEMONSTRATION PLATFORM
The system demonstration platform (SDP) is a hardware and
software evaluation tool for use in conjunction with product
evaluation boards. The SDP board is based on the Blackfin BF527
processor with USB connectivity to the PC through a USB 2.0 high
speed port.
Note that the SDP board is sold separately from the AD9832
evaluation board.
AD9832 TO SPORT INTERFACE
The Analog Devices SDP board has a SPORT serial port that is
used to control the serial inputs to the AD9832. The connections
are shown in Figure 32.
AD9832
FSYNC
SDATA
SCLK
02705
-0
39
SPORT_TFS
SPORT_TSCLK
SPORT_DTO
ADSP-BF527
Figure 32. SDP to AD9832 Interface
The AD9832 evaluation board allows designers to evaluate the
high performance AD9832 DDS modulator with a minimum of
effort. The GUI interface for the AD9832 evaluation board is
09090-
040
Figure 33. AD9832 Evaluation Software
The DDS evaluation kit includes a populated, tested AD9832
PCB. Software is available with the evaluation board that allows
the user to easily program the AD9832. The schematics of the
AD9832 evaluation board are shown in Figure 34 and Figure 35.
The software runs on any IBM-compatible PC that has Microsoft
Windows 95, Windows 98, Windows ME, Windows 2000 NT,
or Windows 7 installed.
Additional details can be found in the EVAL-AD9832SDZ data
sheet that is available on the software CD and on the AD9832
product page.
XO vs. EXTERNAL CLOCK
The AD9832 can operate with master clocks up to 25 MHz. A
25 MHz general oscillator is included on the evaluation board.
However, this oscillator can be removed and, if required, an
external CMOS clock can be connected to the part.
Two options for the general oscillator are
AEL 301 series crystals oscillators (AEL Crystals, Ltd.)
SG-310SCN oscillators (Epson Toyocom Corporation)
POWER SUPPLY
Power to the AD9832 evaluation board can be provided from
a USB connector or externally through pin connections. The
power leads should be twisted to reduce ground loops.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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