Datasheet

Evaluation Board User Guide UG-397
Rev. 0 | Page 3 of 16
EVALUATION BOARD HARDWARE
POWER SUPPLIES
The EVA L -MB-LV-SDZ supports using single power supplies.
The evaluation board can be powered either from the SDP port
or externally by the J1 and J2 connectors 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
;
from 2.7 V to 5.5 V.
J1-2 GND Analog ground.
J2-1 VLOGIC Digital supply, from 2.7 V to V
DD
.
J2-2 DGND Digital ground.
LINK OPTIONS
Several link and switch options are incorporated in the EVAL-
MB-LV-SDZ evaluation 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. The
functions of these link options are described in detail in Table 3
through Table 6.
Table 2. Link Options Setup for SDP Control (Default)
Link No. Option
A11 3.3 V
A12 AGND
A5 3.3 V
Table 3. Link Functions
Link No.
Power Supply
Options
A11 V
DD
This link selects one of the following as the positive power supply:
5 V (from SDP).
3.3 V (from SDP).
VDD (external supply from the J1 connector).
A5 V
LOGIC
This link selects one of the following as the digital supply:
3.3 V (from SDP).
VLOGIC EXT (external supply from the J2 connector).
A12 GND AGND.