Analog Devices AD5252 Evaluation Board EVAL-AD5252SDZ EVAL-AD5252SDZ Ficha De Dados
Códigos do produto
EVAL-AD5252SDZ
Evaluation Board User Guide
UG-274
Rev. 0 | Page 3 of 16
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EVAL-AD5252SDZ supports the use of single and dual
power supplies.
In single-supply mode, the evaluation board can be powered
either from the SDP port or externally by the J1-1, J1-2, and
J1-3 connectors, as described in Table 1.
If dual-supply mode is required, the J1-1, J1-2, and J1-3 connectors
must provide the external power supply, as described in Table 1.
All supplies are decoupled to ground using 10 µF tantalum and
0.1 µF ceramic capacitors.
power supplies.
In single-supply mode, the evaluation board can be powered
either from the SDP port or externally by the J1-1, J1-2, and
J1-3 connectors, as described in Table 1.
If dual-supply mode is required, the J1-1, J1-2, and J1-3 connectors
must provide the external power supply, as described in Table 1.
All supplies are decoupled to ground using 10 µF tantalum and
0.1 µF ceramic capacitors.
Table 1. Maximum and Minimum Voltages of the Connectors
Connector No.
Label
Voltage
J1-1
EXT VDD
Analog positive power supply, V
DD
.
For single-supply operation, it is
2.7 V to 5.5 V.
2.7 V to 5.5 V.
For dual-supply operation, it is
2.25 V to 2.75 V.
2.25 V to 2.75 V.
J1-2
GND
Analog GND.
J1-3
EXT VSS
Analog negative power supply, V
SS
.
For single-supply operation, it is 0 V.
For dual-supply operation, it is
−2.25 V to −2.75 V.
−2.25 V to −2.75 V.
LINK OPTIONS
Several link and switch options are incorporated in the evalu-
ation board and should be set up before using the board. Table 2
describes the positions of the links to control the evaluation board
by a PC, via the SDP board, using the EVAL-AD5252SDZ in
single-supply mode. The functions of these link and switch
options are described in detail in Table 3 through Table 6.
ation board and should be set up before using the board. Table 2
describes the positions of the links to control the evaluation board
by a PC, via the SDP board, using the EVAL-AD5252SDZ in
single-supply mode. The functions of these link and switch
options are described in detail in Table 3 through Table 6.
Table 2. Link Options Setup for SDP Control (Default)
Link No.
Option
A25
3.3 V
A24
GND
Table 3. Link Functions
Link No.
Power Supply
Options
A25
V
DD
This link selects one of the following as the positive power supply:
5 V (from SDP).
3.3 V (from SDP).
EXT (external supply from the J1-1 connector).
A24
V
SS
This link selects one of the following as the negative power supply:
GND (analog ground).
VSS (external supply from the J1-3 connector).