Analog Devices AD6659, Руководство пользователя

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UG-003 Evaluation Board User Guide
Rev. A | Page 8 of 40
EVALUATION BOARD SOFTWARE QUICK START PROCEDURES
This section provides quick start procedures for using the AD9650 ,
AD9268 , AD9258 , AD9251 , AD9231 , AD9204 , AD9269 , and
AD6659 evaluation board. Both the default and optional
settings are described.
CONFIGURING THE BOARD
Before using the software for testing, configure the evaluation
board as follows:
1. Connect the evaluation board to the data capture board,
as shown in Figure 1 and Figure 2.
2. Connect one 6 V, 2.5 A switching power supply (such as
the CUI, Inc., EPS060250UH-PHP-SZ supplied) to the
AD9650, AD9268, AD9258, AD9251, AD9231, AD9204,
AD9269, or AD6659 board.
3. Connect one 6 V, 2.5 A switching power supply (such
as the CUI EPS060250UH-PHP-SZ supplied) to the
HSC-ADC-EVALCZ board.
4. Connect the HSC-ADC-EVALCZ board (J6) to the PC
with a USB cable.
5. On the ADC evaluation board, confirm that three jumpers are
installed on J302, one between Pin 1and Pin 2, one between
Pin 4 and Pin 5, and one between Pin 8 and Pin 9, to connect
the SPI bus to the DUT.
6. If using an AD9269 family board, ensure that J605 (OSC_EN)
has a jumper installed to use the on-board 50 MHz/65 MHz/
80 MHz Valpey Fisher VFAC3 oscillator. If using an AD9650
or AD9268 family board, make sure a low jitter sample
clock is applied at J602.
7. On the ADC evaluation board, use a clean signal generator
with low phase noise to provide an input signal to the desired
A and/or B channel(s). Use a 1 m, shielded, RG-58, 50 Ω
coaxial cable to connect the signal generator. For best results,
use a narrow-band, band-pass filter with 50 Ω terminations
and an appropriate center frequency. (Analog Devices uses
TTE, Allen Avionics, and K&L band-pass filters.)
USING THE SOFTWARE FOR TESTING
Setting Up the ADC Data Capture
After configuring the board, set up the ADC data capture using
the following steps:
1. Open VisualAnalog on the connected PC. The appropriate
part type should be listed in the status bar of the
VisualAnalog – New Canvas window. Select the template
that corresponds to the type of testing to be performed
(see Figure 6 where the AD9268 is shown as an example).
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Figure 6. VisualAnalog, New Canvas Window
2. After the template is selected, a message appears asking if
the default configuration can be used to program the FPGA
(see Figure 7). Click
Yes and the window closes.
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Figure 7. VisualAnalog Default Configuration Message
3. To change features to settings other than the default settings,
click the
Expand Display button, located on the bottom
right corner of the window, to see what is shown in Figure 9.
Detailed instructions for changing the features and capture
settings can be found in the
AN-905 Application Note,
VisualAnalog Converter Evaluation Tool Version 1.0 User
Manual
. After the changes are made to the capture settings,
click
Collapse Display
(see Figure 8).
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Figure 8. VisualAnalog Window Toolbar, Collapsed Display