EVAL-AD5592RSDZ User Guide
UG-753
EVALUATION BOARD HARDWARE
POWER SUPPLIES
To use the evaluation board with the
SDP-B
board, a 6 V power
supply is required, which is connected to Connector J3. The
evaluation board can also be used without the
SDP-B
board. In
this case, Connector J2 is the power supply input for the V
DD
supply.
Both the AGND and the DGND inputs are provided on the
board. The AGND and DGND planes are connected at one
location close to the
AD5592R
. It is recommended that AGND
and DGND not be connected elsewhere in the system to avoid
ground loop problems.
All supplies are decoupled to ground with 10 µF tantalum and
0.1 µF ceramic capacitors.
Table 1. Power Supply Connectors
Connector Name
Voltage
J1
Not used
J2
Analog power supply, V
DD
J3
6 V board positive power supply
DIGITAL INPUT AND OUTPUT SIGNALS
When the
SDP-B
board is used to control the
AD5592R
evaluation board, the digital input signals are applied to
Connector J4. When the
SDP-B
board is not being used, digital
signals must be applied to the 10-way header, J5.
ANALOG INPUT AND OUTPUT SIGNALS
The input/output pins of the
AD5592R
are available on SMB
connectors, I/O0 to I/O7. These are analog inputs or outputs
depending on whether the input/output pins are configured as
ADCs or DACs, respectively. I/O0 to I/O7 are digital inputs or
outputs if the input/output pins are configured as GPIOs.
V
L
OGIC
V
DD
DG
ND
AG
ND
AG
ND
EXT
_
R
EF
I/O0
+
6V
S
DP
CO
NNE
CT
O
R
EEPROM
V
REF
ADR431
2.5V REF
10-WAY
HEADER
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
SPI
AD5592R
12600-
002
Figure 2. Evaluation Board Block Diagram
Rev. 0 | Page 5 of 13
