MAX9635EVKIT+

19-5508; Rev 0; 9/10 MAX9635 Evaluation Kit The MAX9635 evaluation kit (EV kit) is a fully assembled and tested surface-mount PCB that evaluates the MAX9635 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. I2C/SMBusK The EV kit provides an on-board interface and is connected to the computer through the USB port. The EV kit includes Windows XPM-, Windows VistaM-, and WindowsM 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. Features S Powered Directly from a USB Port S On-Board Microcontroller to Generate I2C Commands S Easy-to-Use, Menu-Driven Software S Surface-Mount Components S Fully Assembled and Tested The on-board device can also be controlled by an external master, allowing users to test different code implementations to interface with the part. Ordering Information PART TYPE MAX9635EVKIT+ EV Kit +Denotes lead(Pb)-free and RoHS-compliant. Component List DESIGNATION QTY C1, C12, C14, C30 4 10FF Q10%, 16V X5R ceramic capacitors (0805) Murata GRM21BR61C106K C2, C3 2 22pF Q5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H220J C4 1 0.033FF Q10%, 16V X5R ceramic capacitor (0603) Taiyo Yuden EMK107BJ333KA C5–C10, C17, C18 C11, C13, C19, C29 DESCRIPTION 8 0.1FF Q10%, 16V X7R ceramic capacitors (0603) Murata GRM188R71C104K 4 1FF Q10%, 16V X5R ceramic capacitors (0603) TDK C1608X5R1C105K DESIGNATION QTY DESCRIPTION C15, C16 2 10pF Q5%, 50V C0G ceramic capacitors (0603) Murata GRM1885C1H100J C20 0 Not installed, capacitor (0603) H1 0 Not installed, 2 x 5-pin JTAG header JU1–JU4 4 3-pin headers JU5 1 2-pin header L1 1 Ferrite bead (0603) TDK MMZ1608R301A P1 1 Mini-USB type-B connector R1, R2 2 27I Q5% resistors (0603) R3, R13, R16 3 1.5kI Q5% resistors (0603) R4 1 470I Q5% resistor (0603) R5 1 2.2kI Q5% resistor (0603) SMBus is a trademark of Intel Corp. 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. Evaluates: MAX9635 General Description Evaluates: MAX9635 MAX9635 Evaluation Kit Component List (continued) DESIGNATION QTY R6, R15 2 10kI Q5% resistors (0603) DESCRIPTION DESIGNATION R7–R11 0 Not installed, resistors—shorted by PCB trace (0402) R17 1 100kI Q5% resistor (0603) U1 1 Ambient light sensor (6 UTDFN-Opto-EP*) Maxim MAX9635EDT+ U2 1 U3 U4, U5 QTY DESCRIPTION U6 1 UART-to-USB converter (32 TQFP) U7 1 93C46-type 3-wire EEPROM (8 SO) Y1 1 16MHz crystal Hong Kong X’tals SSM16000N1HK188F0-0 Microcontroller (68 QFN-EP*) Maxim MAXQ2000-RAX+ Y2 1 1 LDO regulator (5 SC70) Maxim MAX8511EXK25+ 6MHz crystal Hong Kong X’tals SSL60000N1HK188F0-0 — 5 Shunts 2 LDO regulators (5 SC70) Maxim MAX8511EXK33+ — 1 PCB: MAX9635 EVALUATION KIT+ *EP = Exposed pad. Component Suppliers SUPPLIER PHONE WEBSITE Hong Kong X’tals Ltd. 852-35112388 www.hongkongcrystal.com Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com Taiyo Yuden 800-348-2496 www.t-yuden.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX9635 when contacting these component suppliers. MAX9635 EV Kit Files PART DESCRIPTION INSTALL.EXE Installs the EV kit files on your computer MAX9635.EXE Application program FTD2XX.INF USB device driver file UNINST.INI Uninstalls the EV kit software USB_Driver_Help.PDF USB driver installation help file 2   _______________________________________________________________________________________ MAX9635 Evaluation Kit • MAX9635 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. Procedure The EV kit is fully assembled and tested. Follow the steps below to verify board operation: 1) Visit www.maxim-ic.com/evkitsoftware to download the latest version of the EV kit software, 9635Rxx.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\MAX9635 (default installation 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 installation. 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. Detailed Description of Software The MAX9635 EV kit software GUI (Figure 1) is a Windows program that provides a convenient means to control the MAX9635. 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 MAX9635 IC data sheet for further details. The Data Log checkbox enables the user to log the lux readings data. Simple SMBus Commands 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 selecting 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. _______________________________________________________________________________________   3 Evaluates: MAX9635 Quick Start Evaluates: MAX9635 MAX9635 Evaluation Kit Figure 1. MAX9635 EV Kit Software Main Window 4   _______________________________________________________________________________________ MAX9635 Evaluation Kit Evaluates: MAX9635 Figure 2. MAX9635 Interface Diagnostic Window Detailed Description of Hardware I2C Bus Lines The MAX9635 EV kit features an on-board I2C/SMBus interface control through the USB. To use the EV kit with a user-supplied I2C/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 pads on the EV kit board. Table 1 lists the selectable jumper options. Hardware Interrupt 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 pad on the EV kit board. Table 2 lists the selectable jumper options. Power Input 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 3.3V power supply (default shunt position across pins 2-3) or by an external power supply (shunt across pins 1-2). Table 3 lists the selectable jumper options. Bit 0 of I2C Address The EV kit provides 2-pin jumper JU5 to configure the state of the A0 address pin. Table 4 lists the selectable jumper options. _______________________________________________________________________________________   5 Evaluates: MAX9635 MAX9635 Evaluation Kit Table 1. Jumpers JU1 and JU2 Function (SDA and SCL) JUMPER JU1 JU2 SHUNT POSITION 1-2* DESCRIPTION Connects the device’s SDA to on-board I2C master 2-3 Connects the device’s SDA to user-supplied external I2C master 1-2* Connects the device’s SCL to on-board I2C master 2-3 Connects the device’s SCL to user-supplied external I2C master *Default position. Table 2. Jumper JU3 Function (INT) SHUNT POSITION 1-2* 2-3 *Default position. DESCRIPTION Connects the device’s INT to on-board I2C master Connects the device’s INT to external user-supplied I2C master Table 3. Jumper JU4 Function (VCC) SHUNT POSITION DESCRIPTION 1-2 The EV kit requires an external power supply applied at the VDD pad 2-3* The device is powered through 3.3V generated from the host PC’s USB port *Default position. Table 4. Jumper JU5 Function (A0) SHUNT POSITION Installed DESCRIPTION A0 pulled to GND; the device’s I2C interface slave address selected as 1001010x Not installed* A0 pulled to VCC through R17; the device’s I2C interface slave address selected as 1001011x *Default position. Note: x is the read/write bit. 6   _______________________________________________________________________________________ MAX9635 Evaluation Kit Evaluates: MAX9635 Figure 3a. MAX9635 EV Kit Schematic (Sheet 1 of 2) _______________________________________________________________________________________   7 Evaluates: MAX9635 MAX9635 Evaluation Kit Figure 3b. MAX9635 EV Kit Schematic (Sheet 2 of 2) 8   _______________________________________________________________________________________ MAX9635 Evaluation Kit Evaluates: MAX9635 1.0” Figure 4. MAX9635 EV Kit Component Placement Guide— Component Side 1.0” Figure 6. MAX9635 EV Kit PCB Layout—Solder Side 1.0” Figure 5. MAX9635 EV Kit PCB Layout—Component Side 1.0” Figure 7. MAX9635 EV Kit Component Placement Guide— Solder Side _______________________________________________________________________________________   9 Evaluates: MAX9635 MAX9635 Evaluation Kit Revision History REVISION NUMBER REVISION DATE 0 9/10 DESCRIPTION Initial release PAGES CHANGED — Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 10 ©  2010 Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.