Analog Devices EVAL-ADP5020, Руководство пользователя

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Evaluation Board for Power Management
Unit for Imaging Modules
EVAL-ADP5020
Rev. 0
Evaluation boards are only intended for device evaluation and not for production purposes.
Evaluation boards are supplied “as is” and without warranties of any kind, express, implied, or
statutory including, but not limited to, any implied warranty of merchantability or fitness for a
particular purpose. No license is granted by implication or otherwise under any patents or other
intellectual property by application or use of evaluation boards. Information furnished by Analog
Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog
Devices for its use, nor for any infringements of patents or other rights of third parties that may result
from its use. Analog Devices reserves the right to change devices or specifications at any time
without notice. Trademarks and registered trademarks are the property of their respective owners.
Evaluation boards are not authorized to be used in life support devices or systems.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
©2009 Analog Devices, Inc. All rights reserved.
FEATURES
Input voltage: 2.4 V to 5.5 V
Evaluates three regulators (Buck 1, Buck 2, and LDO)
USB to I
2 C interface translation
Jumpers for input current measurement of regulators
Supports EN, SYNC, and XSHTDWN pin interface
Evaluation software included
GENERAL DESCRIPTION
The evaluation system is composed of a motherboard and
a daughterboard. The motherboard provides the I
2
C® signals
from the computer USB port and generates the I/O voltages
and digital high and low signals for the daughterboard.
The motherboard features a 3.3 V regulator (VBOARD) a 3.7 V
regulator (VBATT) and a 2.0 V regulator (VDDIO). VDDIO is
the digital I/O voltage supplying the I
2 C interface and the control
pins. VBOARD is the motherboard logic supply while VBATT
provides power to the daughterboard. Jumpers on the top left
of the motherboard define whether the internal regulators are
supplied from the USB port or from external supplies connected to
J10. The VBUS line from the USB connector powers the mother-
board regulators when Jumper LK8 to Jumper LK10 are in the
USB position. Connector J10 provides supply voltages for the
motherboard and daughterboard when Jumper LK8 to Jumper
LK10 are in the EXT position.
The daughterboard contains numerous jumpers, LEDs, and test
points for easy evaluation and monitoring of the board.
MOTHERBOARD AND DAUGHTERBOARD LAYOUT
07794-
001
Figure 1.