UM10537
PCA9634 demonstration board OM13327
Rev. 1 — 7 March 2012
User manual
Document information
Info
Keywords
Abstract
Content
I2C, PCA9634, RGB, RGBA, 8 x 8-bit PWM
The OM13327 is an add-on to the NXP I2C 2005-1 demo board. This
daughter board makes it easy to test and design with the PCA9634, an
8-bit Fast-mode Plus (Fm+) low power LED driver. These boards, along
with the I2CUSB Lite GUI (PC-based), provide an easy to use evaluation
platform.
NXP Semiconductors
UM10537
PCA9634 demonstration board OM13327
Revision history
Rev
v.1
Date
20120307
Description
user manual; initial release
Contact information
For more information, please visit:
http://www.nxp.com
For sales office addresses, please send an email to:
salesaddresses@nxp.com
UM10537
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1 — 7 March 2012
2 of 13
NXP Semiconductors
UM10537
PCA9634 demonstration board OM13327
1. Introduction
The PCA9634 evaluation board features LEDs for color mixing, blinking and dimming
demonstrations. A graphical interface allows the user to easily explore the different
functions of the driver. The board can be connected in series with other I
2
C-bus
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 PCA9634 8-bit low power LED driver
Easy to use GUI based software demonstrates the capabilities of the PCA9634
On-board RGBA 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
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.
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 2005-1 demonstration board (OM6275)
3.4 Power requirements
The NXP demonstration board I2C 2005-1 and OM13327 hardware obtain power from the
PC USB port. Care should be taken not to exceed the USB port current capabilities.
UM10537
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1 — 7 March 2012
3 of 13
NXP Semiconductors
UM10537
PCA9634 demonstration board OM13327
4. Installation
4.1 I2C 2005-1 board and WIN-I2CUSB Lite software
The OM13327 is a daughter card to the OM6275 I2C 2005-1 demo board. You may
download the WIN-I2CUSB Lite software, the OM6275 user manual UM10206, and find
ordering information at the NXP web site
ics.nxp.com/support/boards/i2c20051/.
4.2 OM13327 connection to I2C 2005-1 board
The I2C 2005-1 demo board should be disconnected from your PC before mounting the
OM13327 board on to it. The OM13327 board has a 9-pin female connector that connects
to the JP1 male connector on the I2C 2005-1 board.
With both boards facing you, connect the OM13327 board to the I2C 2005-1 board before
connecting the USB cable. Once the board is connected, connect the USB cable and start
the WIN-I2CUSB Lite software. You are now ready to evaluate the PCA9634.
PCA9634
demo board
019aac698
Fig 1.
PCA9634 demo board (OM13327) mounting to the I2C 2005-1 demo board
UM10537
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1 — 7 March 2012
4 of 13
NXP Semiconductors
UM10537
PCA9634 demonstration board OM13327
5. Hardware description
J1 select V
DD
1-2 (5 V), 2-3 (3.3 V)
RGBA LEDs
light diffuser
J3 9-pin extender
connector
J6 LED output
test points
PCA9634BS
J2 9-pin connector
to I2C 2005-1 board
J4/J5 internal 1.1 kΩ pull-up
jumpers for SDA/SCL
J7 OE test pin
SW1 for A[0:6] and OE
control setting
019aac699
Fig 2.
PCA9634BS demo board (OM13327)
The OM13327 board has following jumper headers:
•
J2 is for connection to JP1 on I2C 2005-1 demo board.
•
J6 allows monitoring all 8 LED output signals.
•
J3 is for pass-through signals from the I2C 2005-1 demo board to connect in series
with other I
2
C-bus demo boards.
•
J1 is used for power supply selection, connected 1-2 for V
DD
= 5 V and connected 2-3
for V
DD
= 3.3 V.
•
J4 and J5 for internal 1.1 kΩ pull-up resistors option on SDA and SCL signals.
•
J7 allows monitoring and control output enable (OE) input signal.
•
SW1 8-position DIP switch to select I
2
C-bus address A[0:6] = SW1[1:7] for this device
and set output enable OE = SW1[8].
UM10537
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1 — 7 March 2012
5 of 13
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