UM10574
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© NXP Semiconductors N.V. 2014. All rights reserved.
User manual
Rev. 1 — 1 April 2014
3 of 14
NXP Semiconductors
UM10574
PCA9685 demonstration board OM13332
1. Introduction
The PCA9685 evaluation board features LEDs for color backlighting and Ambilight
demonstrations. A graphical interface allows the user to explore the different functions of
the driver easily. The board can be connected in series with other I
2
C demo-boards to
create an evaluation system.
The IC communicates to the host via the industry standard I
2
C-bus/SMBus port. The
evaluation software runs under Microsoft Windows PC platform.
2. Features
•
A complete evaluation platform for the PCA9685 16-channel, 12-bit PWM Fm+
I
2
C-bus 25 mA voltage switch LED driver
•
Easy to use GUI-based software demonstrates the capabilities of the PCA9685
•
On-board RGB and White LEDs for visual experience
•
Convenient test points for easy scope measurements and signal access
•
USB interface to the host PC
•
No external power supply required
3. Getting
started
3.1 Assumptions
Familiarity with the I
2
C-bus is helpful but not required.
3.2 Static
handling
requirements
3.3 Minimum
system
requirements
•
PC Pentium 60 processor (or equivalent), 8 MB RAM, 10 MB of hard drive space
•
One USB port (either 2.0 or 1.1 compatible)
•
Windows 98SE, ME, 2000, XP, or Vista
•
I2C demonstration board 2005-1 (OM6275) or WIN-I2CUSB board (from
3.4 Power
requirements
The NXP demonstration board I2C 2005-1 and OM13332 hardware obtain power from the
PC USB port. Take care not to exceed the USB port current capabilities.
CAUTION
This device is sensitive to ElectroStatic Discharge (ESD). Therefore care should be taken
during transport and handling. You must use a ground strap or touch the PC case or other
grounded source before unpacking or handling the hardware.
