19-5809; Rev 0; 3/11
MAX44009 Evaluation Kit
General Description
The MAX44009 evaluation kit (EV kit) is a fully assembled
and tested surface-mount PCB that evaluates the
MAX44009 low-power ambient light sensor. The EV kit
can be powered directly from the universal serial bus
(USB) or from a single-supply voltage of 1.7V to 3.6V.
The EV kit provides an on-board I
2
C/SMBus interface
and is connected to the computer through the USB port.
The EV kit includes Windows XP
M
-, Windows Vista
M
-,
and Windows
M
7-compatible software that provides
a simple user interface for exercising the device’s
features. The program is menu driven and offers a
graphical user interface (GUI) complete with control
buttons and status displays.
The on-board device can also be controlled by an
external master, allowing users to test different code
implementations to interface with the part.
S
Powered Directly from a USB Port
S
On-Board Microcontroller to Generate I
2
C
Features
Commands
S
Easy-to-Use, Menu-Driven Software
S
Surface-Mount Components
S
Proven PCB Layout
S
Fully Assembled and Tested
Evaluates: MAX44009
Ordering Information
PART
MAX44009EVKIT#
#Denotes
RoHS compliant.
TYPE
EV Kit
Component List
DESIGNATION
C1, C12, C14,
C30
QTY
4
DESCRIPTION
10FF
Q10%,
16V X5R ceramic
capacitors (0805)
Murata GRM21BR61C106K
22pF
Q5%,
50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H220J
0.033FF
Q10%,
16V X5R ceram-
ic capacitor (0603)
Taiyo Yuden EMK107BJ333KA
0.1FF
Q10%,
16V X7R ceramic
capacitors (0603)
Murata GRM188R71C104K
1FF
Q10%,
16V X5R ceramic
capacitors (0603)
TDK C1608X5R1C105K
DESIGNATION
C15, C16
QTY
2
DESCRIPTION
10pF
Q5%,
50V C0G ceramic
capacitors (0603)
Murata GRM1885C1H100J
Not installed, ceramic capacitor
(0603)
Not installed, 2 x 5-pin JTAG
header
3-pin headers
2-pin header
Ferrite bead (0603)
TDK MMZ1608R301A
Mini-USB type-B connector
27I
Q5%
resistors (0603)
1.5kI
Q5%
resistors (0603)
470I
Q5%
resistor (0603)
C2, C3
2
C20
H1
JU1–JU4
JU5
L1
P1
R1, R2
R3, R13, R16
R4
0
0
4
1
1
1
2
3
1
C4
1
C5–C10, C17,
C18
C11, C13, C19,
C29
8
4
Windows, Windows XP, and Windows Vista are registered
trademarks of Microsoft Corp.
_______________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
MAX44009 Evaluation Kit
Evaluates: MAX44009
Component List (continued)
DESIGNATION
R5
R6, R15
R7–R11
R17
U1
QTY
1
2
0
1
1
DESCRIPTION
2.2kI
Q5%
resistor (0603)
10kI
Q5%
resistors (0603)
Not installed, resistors—short
(PC trace) (0402)
100kI
Q5%
resistor (0603)
Ambient light sensor
(6 UTDFN-Opto-EP)
Maxim MAX44009EDT+
Microcontroller (68 QFN-EP)
Maxim MAXQ2000-RAX+
LDO regulator (5 SC70)
Maxim MAX8511EXK25+
LDO regulators (5 SC70)
Maxim MAX8511EXK33+
Y1
1
DESIGNATION
U6
U7
QTY
1
1
DESCRIPTION
UART-to-USB converter
(32 TQFP)
93C46-type 3-wire EEPROM
(8 SO)
16MHz crystal
Hong Kong X’tals
SSM16000N1HK188F0-0
6MHz crystal
Hong Kong X’tals
SSL60000N1HK188F0-0
Shunts
PCB: MAX44009 EVALUATION
KIT
U2
U3
U4, U5
1
1
2
Y2
—
—
1
5
1
Component Suppliers
SUPPLIER
Hong Kong X’tals Ltd.
Murata Electronics North America, Inc.
Taiyo Yuden
TDK Corp.
PHONE
852-35112388
770-436-1300
800-348-2496
847-803-6100
WEBSITE
www.hongkongcrystal.com
www.murata-northamerica.com
www.t-yuden.com
www.component.tdk.com
Note:
Indicate that you are using the MAX44009 when contacting these component suppliers.
MAX44009 EV Kit Files
PART
INSTALL.EXE
MAX44009.EXE
FTD2XX.INF
UNINST.INI
USB_Driver_Help.PDF
Application program
USB device driver file
Uninstalls the EV kit software
USB driver installation help file
DESCRIPTION
Installs the EV kit files on your computer
2
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MAX44009 Evaluation Kit
Evaluates: MAX44009
Quick Start
• MAX44009 EV kit
directory) using the
Browse
button. During device
driver installation, Windows may show a warning
message indicating that the device driver Maxim uses
does not contain a digital signature. This is not an error
condition and it is safe to proceed with installa-
tion. Refer to the USB_Driver_Help.PDF document
included with the software for additional information.
6) Start the EV kit software by opening its icon in the
Start | Programs
menu. The EV kit software main
window appears, as shown in Figure 1. Observe as
the program automatically detects the EV kit and
starts the main program.
7) Monitor and verify the ambient light lux reading of
the EV kit. See the
Detailed Description of Software
section to evaluate the features of the EV kit.
Recommended Equipment
• User-supplied Windows XP, Windows Vista, or
Windows 7 PC with a spare USB port
Note:
In the following sections, software-related items
are identified by bolding. Text in
bold
refers to items
directly from the EV Kit software. Text in
bold and
underlined
refers to items from the Windows operating
system.
The EV kit is fully assembled and tested. Follow the steps
below to verify board operation:
Procedure
1) Visit
www.maxim-ic.com/evkitsoftware
to download
the latest version of the EV kit software, 44009Rxx.
ZIP. Save the EV kit software to a temporary folder
and uncompress the ZIP file.
2) Install the EV kit software on your computer by
running the INSTALL.EXE program inside the
temporary folder. The program files are copied and
icons are created in the Windows
Start | Programs
menu.
3) Verify that a shunt is installed across pins 2-3 on
jumper JU4 (USB powered).
4) Connect the USB cable from the PC to the EV kit
board. A
New Hardware Found
windows pops
up when installing the USB driver for the first time.
If you do not see a window that is similar to the
one described above after 30s, remove the USB
cable from the board and reconnect it. Administrator
privileges are required to install the USB device driver
on Windows.
5) Follow the directions of the
Add New Hardware
wizard to install the USB device driver. Choose
the
Search for the best driver for your device
option. Specify the location of the device driver to
be
C:\Program Files\MAX44009
(default installation
Detailed Description of Software
The MAX44009 EV kit software GUI (Figure 1) is a
Windows program that provides a convenient means to
control the MAX44009. The EV kit software accurately
reads the device’s digital output and displays the lux
reading of ambient light. The software has an option
to extend the resolution and dynamic range of lux
measurements. The software also sets the upper and
lower lux threshold limits, configures the interrupt
functionality, and configures other modes of device.
Refer to the
Register and Bit Descriptions
section in the
MAX44009 IC data sheet for further details.
The
Data Log
checkbox enables the user to log the lux
readings data.
There are two methods for communicating with the
device, through the EV kit software main window (Figure
1), or through the interface window available by select-
ing the
Options | Interface (Advanced Users)
menu
item from the menu bar. The Maxim command module
interface window (Figure 2) includes a
2-wire interface
tab that allows for execution of the frequently used
commands.
Simple SMBus Commands
_______________________________________________________________________________________
3
MAX44009 Evaluation Kit
Evaluates: MAX44009
Figure 1. MAX44009 EV Kit Software Main Window
4
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MAX44009 Evaluation Kit
Evaluates: MAX44009
Figure 2. MAX44009 Interface Diagnostic Window
Detailed Description of Hardware
The MAX44009 EV kit features an on-board I
2
C/SMBus
interface control through the USB. To use the EV kit with
a user-supplied I
2
C/SMBus interface, move the shunts
on jumpers JU1 and JU2 to the 2-3 position. Then
connect the SDA and SCL signals to the corresponding
SDA and SCL PCB pads on the EV kit board. Table 1 lists
the selectable jumper options.
The EV kit features an on-board hardware-interrupt
control. To use the EV kit with a user-supplied interrupt
interface, move the shunt on jumper JU3 to the 2-3
position. Then, connect the
INT
signal to the
INT
PCB
pad on the EV kit board. Table 2 lists the selectable
jumper options.
I
2
C
Bus Lines
The device can operate from a single-supply VCC
between 1.7V and 3.6V. Using the 3-pin jumper JU4,
the device can be powered either by the on-board 1.8V
power supply (default shunt position across pins 1-2)
or by an external power supply (shunt across pins 2-3).
Table 3 lists the selectable jumper options.
The EV kit provides 2-pin jumper JU5 to configure the
state of the A0 address pin. Table 4 lists the selectable
jumper options.
Power Input
Bit 0 of I
2
C Address
Hardware Interrupt
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5
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