Evaluation Board Hardware; Motherboard Power Supplies; Motherboard Link Options; Revision History 8/2017-Rev. 0 To Rev. A Change To Table 3 - Analog Devices EVAL-AD5317RDBZ User Manual

EVAL-AD5317RDBZ User Guide

EVALUATION BOARD HARDWARE

MOTHERBOARD POWER SUPPLIES

The EVAL-MBnanoDAC-SDZ
and dual power supplies.
The EVAL-AD5317RDBZ evaluation board can be powered
either from the SDP port or externally using the J5 and J6
connectors, as described in Table 1.
Table 1. Power Supply Connectors
Connector No. Label
J5, Pin 1 (J5-1) VDD
J5, Pin 2 (J5-2) AGND
J5, Pin 3 (J5-3) VSS
J6, Pin 1 (J6-1) VLOGIC
J6, Pin 2 (J6-2) DGND
Both the AGND and DGND inputs are provided on the board.
The AGND and DGND planes are connected at one location on
the EVAL-MBnanoDAC-SDZ. 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 3. Link Functions
Link No. Function
REF1 to REF4 These links select the reference source.
Position EXT selects an off-board voltage reference via the appropriate EXT_REF_x connector.
Position VDD selects V
Position 4.096V selects the on-board 4.096 V reference as the reference source.
Position 2.5V selects the on-board 2.5 V reference as the reference source.
Position 5V selects the on-board 5 V reference as the reference source.
LK5 This link selects the positive DAC analog voltage source.
Position A selects the internal voltage source from the
with this configuration.
Position B selects the internal voltage source 3.3 V from the
Position C selects an external supply voltage, V
LK6 This link selects the VLOGIC voltage source.
Position 3.3V selects the digital voltage source from the
Position VLOGIC selects an external digital supply voltage, V
LK7 This link selects the negative DAC analog voltage source.
Position A selects V
Position B selects AGND.
motherboard supports single
Voltage
Analog positive power supply, V
single supply 5 V, dual supply 5 V.
Analog ground.
Analog negative power supply, V
dual supply −5 V.
Digital supply from 1.8 V to V
the daughter board DAC.
Digital ground.
as the reference source.
DD
.
SS

MOTHERBOARD LINK OPTIONS

A number of link options are incorporated in the
MBnanoDAC-SDZ
conditions before using the board. Table 2 describes the positions
of the links to control the evaluation board via the
using a PC and external power supplies. The functions of these
link options are described in detail in Table 3. The positions listed
in Table 2 and Table 3 match the evaluation board imprints (see
Figure 12).
DD
Table 2. Link Options Setup for
Link No.
REF1
SS
REF2
of REF3
DD
REF4
LK5
LK6
LK7

DAUGHTER BOARD LINK OPTIONS

The printed circuit board (PCB) for this board is shared between
the EVAL-AD5316RDBZ
boards. To configure for the
board, it is recommended that LK1 and LK2 be removed for
proper device operation.
SDP-B board. Only the 2.5 V on-board reference can be used
ADP121
.
DD
SDP-B
LOGIC
Rev. A | Page 3 of 13
and must be set for the required operating
SDP-B
Position
2.5V
EXT
EXT
EXT
C
3.3V
B
and EVAL-AD5317RDBZ
EVAL-AD5317RDBZ
on the motherboard.
board, 3.3 V.
.
UG-970
EVAL-
SDP-B board
Control (Default)
daughter
daughter