EVAL-AD73360LEB Datasheet, PDF (2/9 Pages) Analog Devices – AD73360L Evaluation Board, Six Input Channel Analog Front End

EVAL-AD73360(L)EB
System Requirements
Pentium 90 IBM Compatible PC
Windows 95
4Mbytes Hard Disk Space
Bidirectional Printer Port (PS/2, EPP, ECP)
OPERATING THE AD73360(L) EVALUATION BOARD
Power Supply
The AD73360(L) evaluation board can be powered from
any +9 V to +12 V DC power supply connected to J10 on
the board. This supply is regulated to +5 V to power the
PC interface section of the board and also regulated to
+3.2 V to power the DSP and AD73360(L) sections. The
analog section of the AD73360 can also be powered from
+5 V if required. This should only be done when the
AD73360 is used in the evaluation board.
When power is applied the POWER LED D4 should be
lit indicating that the power connector is correctly polar-
ized. Also the LED connected to FL2 should begin to
flash on and off indicating that the DSP has booted from
the on-board flash EPROM correctly.
When the evaluation board has been powered up the PC
software can be loaded and the printer port connector can
be connected. the PC should now be able to communicate
with the evaluation board.
Link Settings
The AD73360(L) evaluation board has a number of link
options which can be used to select the various operating
conditions of the evaluation board. The linking options
are described in detail below.
Table I. Interface Mode Selection
Link
LK1
Position
A¹
B
1 Default Link Position
Function
Frame-Sync Loop
Back
Non Frame-Sync
Loop Back
Table II. Crystal Frequency Selection
LK2
LK3
IN
IN
IN
IN
OUT
OUT
OUT
OUT
IN
IN
OUT
OUT
IN
IN
OUT
OUT
1 Fo=16.384MHz
2 Default Link Positions
LK4
IN
OUT
IN
OUT
IN
OUT
IN
OUT
Fout
Fo/2^{1 2}
Fo/4
Fo/8
Fo/16
Fo/32
Fo/64
Fo/128
Fo/256
Table III. Master Clock Selection
Link
LK5
Position
A¹
B
1. Default Link Position
MCLK Frequency
16.384MHz
Fout
Tabel IV. Reference Selection
Link
LK6
Position
IN¹
OUT
1. Default Link Position
Function
External Reference
Internal Reference
Tabel V. Voltage Selection for AD73360(L)
Link
Position
Function
LK7
A
B¹
+5V Analog Section
+3V Analog Section
1. Default Link PositionEvaluation Board Software
EVALUATION BOARD SOFTWARE
The evaluation board comes with software which will al-
low the user to operate the various functions of the
AD73360(L). There are two main sections to the com-
plete software package. One runs on the PC and handles
all the communications between the PC and the evaluation
board. The PC software can be used to load a DSP based
program to the evaluation board which is specifically writ-
ten to operate the AD73360 in a required manner. The
second section of the software is the DSP programs.
These are loaded to the ADSP2185L on the evaluation
board. The programs are designed to allow the user to
gather data from the AD73360 and upload it from to the
PC to be saved or analysised. The DSP example programs
can be modified and recompiled to meet the needs of the
users end application if necessary.
PC Software Description
When the user runs the software they are presented with a
selection screen where the user can determine if they want
to use the Basic or Demonstration Mode options. The
Selection Screen is shown in Figure 1.
Figure 1. Selection Screen
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