Evaluate: MAX7325 19-1033 Rev 0 11/07 MAX7325 Evaluation Kit/Evaluation System General Description Features The MAX7325 evaluation kit (EV kit) is a fully assembled 400kHz, 2-Wire Serial Interface and tested printed-circuit board (PCB) that demon- 1.71V to 5.5V Operation 2 strates the capabilities of the MAX7325 I C port expander with eight push-pull outputs and eight open- 8 Push-Pull Output Ports drain I/Os. The MAX7325 EV kit also includes 8 Open-Drain I/O Ports, Rated to 20mA Sink Windows 2000/XP/Vista-compatible software that pro- vides a simple graphical user interface (GUI) for exer- Current cising the MAX7325s features. Input Ports are Overvoltage Protected to 6V The MAX7325 evaluation system (EV system) includes Proven PCB Layout a MAX7325 EV kit and a Maxim CMAXQUSB serial- interface board. The CMAXQUSB board connects to a Windows 2000/XP/Vista (32-Bit)-Compatible 2 PCs USB port and allows the transfer of I C commands Software to the MAX7325 EV kit. Fully Assembled and Tested The EV kit comes with the MAX7325ATG+ installed. EV System: USB PC Connection Ordering Information PART TYPE MAX7325EVKIT + EV Kit MAX7325EVCMAXQU+ EV System +Denotes lead-free and RoHS-compliant. Note: The MAX7325 EV kit software is designed for use with the complete EV system (MAX7325EVCMAXQU+). The EV system includes both the Maxim CMAXQUSB board and the EV kit (MAX7325EVKIT+). If the Windows software will not be used, the EV kit board can be purchased without the Maxim CMAXQUSB board. Component Lists MAX7325 EV System DESIGNATION QTY DESCRIPTION J1 1 2 x 10 right-angle female receptacle PART QTY DESCRIPTION JU1, JU2 2 5-pin, 4-way headers MAX7325EVKIT+ 1 MAX7325 EV kit JU3 1 2-pin header CMAXQUSB+ 1 Serial-interface board JU4 1 3-pin header MAX7325 EV kit R1R6 6 150 5% resistors (0603) DESIGNATION QTY DESCRIPTION R7, R8, R9 3 10k 5% resistors (0603) 10F 10%, 6.3V X5R ceramic R10, R11 0 Not installed, resistors (0603) C1 1 capacitor (0805) R12 1 2k 5% resistor (0603) TDK C2012X5R0J106K S1S4 4 Pushbutton switches 0.1F 10%, 25V X7R ceramic 2 C2 1 capacitor (0603) Maxim I C port expander with 8 TDK C1608X7R1E104K push-pull outputs and 8 open-drain 47pF 10%, 50V C0G ceramic U1 1 I/Os C3 1 capacitor (0603) MAX7325ATG+ (24-pin TQFN-EP*, TDK C1608C0G1H470J 4mm x 4mm) D1, D3, D5, D6 4 Red LEDs (PLCC) 1 PCB: MAX7325 Evaluation Kit+ D2, D4 2 Green LEDs (PLCC) *EP = Exposed paddle. Windows is a registered trademark 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.MAX7325 Evaluation Kit/Evaluation System 2 3) Enable the I C pullup resistors on the CMAXQUSB Component Supplier board by setting the DIP switches on SW1 to the ON position. SUPPLIER PHONE WEBSITE TDK Corp. 847-803-6100 www.component.tdk.com 4) For the MAX7325 EV kit, make sure that the shunts of all jumpers are in the following default positions: Note: Indicate that you are using the MAX7325 when contact- 2 ing this component supplier. JU1: (1-3) Combined with JU2 makes I C address = 0xC0, 0xA0 MAX7325 EV Kit Files 2 JU2: (1-4) Combined with JU1 makes I C address = 0xC0, 0xA0 FILE DESCRIPTION JU3: (Open) Normal operation Installs the EV kit files on your INSTALL.EXE JU4: (2-3) CMAXQUSB provides the power computer supply MAX7325.EXE Application program 5) Connect the boards by aligning the MAX7325 EV FTD2XX.INF USB device driver file kits 20-pin connector with the 20-pin connector of UNINST.INI Uninstalls the EV kit software the CMAXQUSB board. USB Driver Help.PDF USB driver installation help file 6) Connect the USB cable from the PC to the CMAXQUSB board. A Building Driver Database Quick Start window pops up in addition to a New Hardware Found message if this is the first time it is used on Recommended Equipment the PC. If you do not see a window that is similar to Before beginning, the following equipment is needed: the one described above after 30s, remove the USB The MAX7325 EV system cable from the CMAXQUSB and reconnect it. MAX7325 EV kit Administrator privileges are required to install the USB device driver on Windows 2000/XP/Vista. Maxim CMAXQUSB board 7) Follow the directions of the Add New Hardware USB cable (included with CMAXQUSB) Wizard to install the USB device driver. Choose the A user-supplied Windows 2000/XP/Vista-compatible Search for the best driver for your device option. PC with a spare USB port Specify the location of the device driver to be Note: In the following sections, software-related items C: Program Files MAX7325 (default installation are identified by bolding. Text in bold refers to items directory) using the Browse button. During device directly from the EV kit software. Text in bold and driver installation, Windows may show a warning message indicating that the device driver Maxim underlined refers to items from the Windows operating uses does not contain a digital signature. This is not system. an error condition and it is safe to proceed with Procedure installation. Refer to the USB Driver Help.PDF docu- 1) Visit www.maxim-ic.com/evkitsoftware to download ment for additional information. the latest version of the EV kit software, 8) Start the MAX7325 EV kit software by opening its 7325Rxx.ZIP. Save the EV kit software to a tempo- icon in the Start menu. The GUI main window will rary folder and uncompress the ZIP file. appear, as shown in Figure 1. 2) Install the MAX7325 evaluation software on your 9) Check or uncheck the O8 and O9 checkboxes computer by running the INSTALL.EXE program above the Write button, which is inside the Group B inside the temporary folder. The program files are Ports group box. Press the Write button and copied and icons are created in the Windows Start observe the light change of the LEDs on the EV kit menu. board. 2 Evaluate: MAX7325