Link Configuration Options; Setup Conditions - Analog Devices EVAL-AD7405FMCZ User Manual

EVAL-AD7405FMCZ User Guide

LINK CONFIGURATION OPTIONS

There are multiple link options that must be set correctly to
select the appropriate operating setup before you begin using
the EVAL-AD7405FMCZ evaluation board. The functions of
these options are outlined in Table 2.

SETUP CONDITIONS

Take care before applying power and signals to the evaluation
board to ensure that all link positions are as required by the
operating mode. There are two modes in which to operate the
evaluation board. The evaluation board can be operated in
SDP-H1 controlled mode to be used with the
board, or the evaluation board can be used in standalone mode.
Table 2. Link Options
Default
Category Link Position
Power Supplies LK1 A
LK5 Removed
LK2 A
Analog Input LK7 Removed
LK8 Inserted
EVAL-SDP-CH1Z
Function
This link selects the AD7405 V
Position A: V is supplied from the
DD1
Position B: V is supplied externally via Connector J3.
DD1
When LK5 is inserted, V is supplied via a step-down dc-to-dc regulator via J4. Remove LK5 if V
DD1
supplied via LK1. Remove LK1 if V
This link selects the AD7405 V
Position A: V is supplied from the
DD2
Position B: V is supplied from the on-board 5 V regulator.
DD2
Position C: V is supplied externally via Connector J5.
DD2
When LK7 is inserted, VIN+ is shorted to ground. Remove LK7 if a signal is applied to AIN+.
When LK8 is inserted, VIN− is shorted to ground. Remove LK8 if a signal is applied to AIN−.
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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 set up to operate in
SDP-H1 controlled mode, with the power supplied from the
EVAL-SDP-CH1Z board and the analog supply rail (V
supplied via the on-board isoPower®
converter.
supply source. Remove LK5 if using either Position A or Position B.
DD1
ADuM6000 on-board device.
is supplied via LK5.
DD1
supply source.
DD2
EVAL-SDP-CH1Z board.
UG-690
) being
DD1
ADuM6000 dc-to-dc
DD1
is