UG-753
EVAL-AD5592RSDZ User Guide
LINK CONFIGURATION OPTIONS
A number of link options are incorporated in the evaluation
board and must be set for the required operating conditions
before using the board. The functions of these link options are
described in detail in Table 2.
SETUP CONDITIONS
Before applying power and signals to the evaluation board take
care to ensure that all link positions are set as required by the
operating mode. The evaluation board operates in two different
modes—
SDP-B
controlled mode and standalone mode.
The Default Position column of Table 2 shows the default
positions in which the links are set when the evaluation board is
packaged. When the board is shipped, it is assumed that the
user intends to operate the evaluation board with the
SDP-B
board (
SDP-B
controlled mode).
Table 2. Link Functions
Link Name
Option
Default Position
LK1
This link selects the V
DD
source for the
AD5592R
.
A
Position A selects the internal voltage source (5V_VDD) from the
ADP3331
.
Position B selects an external supply voltage (EXT_VDD).
LK2, LK4,
LK4-LK9,
LK20
These links connect 100 kΩ pull-down resistors from the input/output pins to AGND. When the link is
removed, the level of associated pins is determined by the configuration of the
AD5592R
.
IN
LK3
This link selects the reference source for the
AD5592R
.
A
Position A selects the on-board 2.5 V reference as the reference source.
Position B selects an off-board voltage reference via the EXT_REF connector. Select this option if the
internal reference is to be used.
LK11
This link is not used for the
AD5592R
.
OUT
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