EVAL-AD73322EB Datasheet, PDF (4/12 Pages) Analog Devices – EvaluationBoardforLowCost,LowPower, CMOSGerneralPurposeDualAnalogFrontEnd

EVAL-AD73322EB
LOADING DEMO PROGRAMS.
Follow EZ-KIT instructions for installation of EZ-KIT software. Activate the windows FILE MANAGER and create a
directory for the AD73322 diskette (example C:\ADI_DSP\EZ-73322) Copy the contents of the AD73322 demo programs
diskette into this directory. Alternatively the demo programs can be run from the diskette drive. Close down FILE
MANAGER.
The AD73322 evaluation board uses the user program facility of the EZ-KIT LITE PC based software to download its
demonstration programs. Therefore it does not have a menu of demonstration options but instead the various demonstrations
must be downloaded as one would download a user program under the existing EZ-KIT LITE software. Please refer to the
EZ-KIT LITE reference manual for more details of this feature (page 6-13).
Activate the EZ-KIT LITE -Monitor host program and select the LOADING option. The red LED on the EZ-KIT LITE
board must be flashing while doing this operation. Use the RESET button on the EZ-KIT board to make the LED flash if
necessary.
Fig. 2: Download User Program and Go menu
From this select the DOWNLOAD USER PROGRAM AND GO menu. This opens the window shown in Fig. 2.
AD73322 SINGLE CODEC DEMO PROGRAMS
These demo programs use a single channel on an AD73322 device. The other channel is powered-down except for the
SPORT section which must remain active to support cascading operation.
Loop-Through (64 kHz) (a:\EZ_73322\single\1in1out.exe)
In this demo a single AD73322 codec is configured for loop-through operation with input samples being passed through
to the output at a 64 kHz rate. This sampling rate gives low group delay sampling which is suitable for active control
applications.
File(s) used are: \EZ_73322\single\1in1out.dsp
Build using: \EZ_73322\single\make.bat
Loop-Through (8 kHz) (a:\EZ_73322\single\1inout8k.exe)
This demo is similar to the 64 kHz sampling demo except that the sampling rate is reducedto 8 kHz.
File(s) used are: \EZ_73322\single\1inout8k.dsp
Build using: \EZ_73322\single\make.bat
Tone Generator (a:\EZ_73322\single\sine_gen.exe)
This demo generates a 1 kHz tone by updating a function generation algorithm at an 8 kHz rate. The AD73322 channel
is set for a sample rate of 8 kHz which is uses to determine the function generation update points.
File(s) used are: \EZ_73322\single\init_cod.dsp \EZ_73322\single\sin.dsp \EZ_73322\single\sine_gen.dsp
Build using: \EZ_73322\single\up.bat
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