UM10317
PCA9633 demonstration board OM6282
Rev. 01 — 15 December 2008
User manual
Document information
Info
Keywords
Abstract
Content
I2C, PCA9633, RGB, RGBA, 2 x 8-bit PWM
The OM6282 is an add-on to NXP’s I2C 2005 -1 demo board. This daughter
board makes it easy to test and design with the PCA9633, a 4-bit Fast-mode
Plus (Fm+) LED driver. These boards, along with the I2CUSB Lite GUI
(PC based), provide an easy to use evaluation platform.
NXP Semiconductors
UM10317
PCA9633 demonstration board OM6282
Revision history
Rev
01
Date
20081215
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
UM10317_1
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 01 — 15 December 2008
2 of 11
NXP Semiconductors
UM10317
PCA9633 demonstration board OM6282
1. Introduction
The PCA9633 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 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 PCA9633 4-bit LED driver
Easy to use GUI based software demonstrates the capabilities of the PCA9633
On-board 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 OM6282 hardware obtain power from the
PC USB port. Care should be taken not to exceed the USB port current capabilities.
UM10317_1
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 01 — 15 December 2008
3 of 11
NXP Semiconductors
UM10317
PCA9633 demonstration board OM6282
4. Installation
4.1 I2C 2005-1 board and WIN-12CUSB Lite software
The OM6282 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
http://www.standardics.nxp.com/support/boards/i2c20051/.
4.2 OM6282 connection to I2C 2005-1 board
The I2C 2005-1 demo board should be disconnected from your PC before mounting the
OM6281 board on to it. The OM6282 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 OM6282 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 PCA9633.
5. Hardware description
LED light diffuser
PCA9633
J2 OE select probe
J3 card extender
connector
J1 connector to
I2C 2005-1 board
address and
OE selector
Fig 1.
OM6282 demo board
The OM6282 board has 3 jumper headers:
•
•
•
•
UM10317_1
J1 is for connection to JP1 on I2C 2005-1 demo board.
J2 allows an external OE to be connected to the board.
J3 is for pass-through signals from the I2C 2005-1 demo board.
IC2 is an unpopulated area for signal access. All address, I
2
C, LED signals are
available.
© NXP B.V. 2008. All rights reserved.
User manual
Rev. 01 — 15 December 2008
4 of 11
NXP Semiconductors
UM10317
PCA9633 demonstration board OM6282
6. Schematic
3.3 V unswitched
C2
C1
LED1
R12
R9
LD1
3.3 V unswitched
3.3 V unswitched
C3
R11
J3
5 V unswitched
5 V switched
3.3 V unswitched
3.3 V switched
SCL
GND
SDA
INPUT
OUTPUT
J2
1
J1
5 V unswitched
5 V switched
3.3 V unswitched
3.3 V switched
SCL
GND
SDA
INPUT
OUTPUT
OE
GND
PIN13
PIN12
A0
A1
A2
A3
PIN1
PIN2
PIN7
PIN8
PIN10
PCA9633
SDA
SCL
A0
A1
A2
A3
OE
GND
PIN9
LED0
LED1
LED2
LED3
A6
A5
A4
PIN16
V
CC
PIN3
PIN4
PIN5
PIN6
PIN15
PIN14
PIN11
A6
A5
R1
R2
LED0
LED1
LED2
LED3
3.3 V unswitched
R3
R4
R5
R6
R7
R8
A4
R10
GND
GND
IC2
A0
A1
LED0
LED1
LED2
LED3
A2
A3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
A6
A5
SDA
SCL
A4
OE
GND
GND
A6
A5
A4
A3
A2
A1
A0
OE
16
15
14
13
12
11
10
9
ON
S1
1 2 3 4 5 6 7 8
1
2
3
4
5
6
7
8
GND
002aae179
© NXP B.V. 2008. All rights reserved.
DIL16-1
SOCKET - not populated
Fig 2.
PCA9633 daughter card
UM10317_1
User manual
Rev. 01 — 15 December 2008
5 of 11
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