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| 型号： | EVAL-AD9835EBZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 15/28页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR AD9835 |
| 产品培训模块： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 标准包装： | 1 |
| 主要目的： | 计时，直接数字合成（DDS） |
| 已用 IC / 零件： | AD9835 |
| 已供物品： | 板 |
| 相关产品： | AD9835BRUZ-REEL7-ND - IC DDS 10BIT 50MHZ 16-TSSOP AD9835BRUZ-REEL-ND - IC DDS 10BIT 50MHZ 16-TSSOP AD9835BRUZ-ND - IC DDS 10BIT 50MHZ 16-TSSOP AD9835BRU-REEL7-ND - IC DDS 10BIT 50MHZ 16-TSSOP AD9835BRU-ND - IC DDS DAC 10BIT 50MHZ 16-TSSOP |
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AD9835
Data Sheet
Rev. A | Page 22 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 AD9835
evaluation board.
AD9835 TO SPORT INTERFACE
The Analog Devices SDP board has a SPORT serial port that is
used to control the serial inputs to the AD9835. The connections
are shown in Figure 30.
AD9835
FSYNC
SDATA
SCLK
096
30-
0
39
SPORT_TFS
SPORT_TSCLK
SPORT_DTO
ADSP-BF527
Figure 30. SDP to AD9835 Interface
The AD9835 evaluation board allows designers to evaluate the
high performance AD9835 DDS modulator with a minimum of
effort. The GUI interface for the AD9835 evaluation board is
shown in Figure 31.
09
63
0-
03
5
Figure 31. AD9835 Evaluation Software
The DDS evaluation kit includes a populated, tested AD9835
PCB. Software is available with the evaluation board that allows
the user to easily program the AD9835. The schematics and
through Figure 36. 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-AD9835SDZ data
sheet (UG-319) that is available on the software CD and on the
AD9835 product page.
XO vs. EXTERNAL CLOCK
The AD9835 can operate with master clocks up to 50 MHz. A
50 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 AD9835 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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