Analog Devices EVAL-AD5676RSDZ, Руководство пользователя

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Evaluation Board User Guide UG-815
Rev. A | Page 7 of 13
EVALUATION BOARD HARDWARE
POWER SUPPLIES
To use the evaluation board with the SDP-B board, a 6 V dc
power supply is required, which is connected to Connector J3.
The evaluation board can be used without the
SDP-B board,
in which case, the J1 and J2 connectors are used as the power
supply inputs.
Both AGND and DGND inputs are provided on the board. The
AGND and DGND planes are connected at one location close
to the
AD567
6
/ AD567
6
R . 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 2. Power Supply Connectors
Connector Number Voltage
J1 External, V
LOGIC
supply
J2 Analog power supply, V
CC
J3 6 V dc board positive power supply
INPUT SIGNALS
When the SDP-B board is used to control the evaluation board,
the digital input signals are applied to Connector J4. When the
SDP-B board is not used, apply the digital signal to Connector J5.
OUTPUT SIGNALS
The DAC output voltages are available on the SMB connectors,
VOUT0 to VOUT7.
EXT
_
VL
EXT
_
VD
D
DG
N
D
AG
N
D
AG
N
D
EXT
_
R
E
F
+6
V
S
D
P C
O
N
N
EC
T
O
R
EEPROM
V
REF
ADR431
2.5V REF
10-WAY
HEADER
I
2
C
INTERFACE
AD5675/
AD5675R
1299
5-
002
VOUT0
VOUT1
VOUT6
VOUT7
Figure 7. Evaluation Board Block Diagram