Evaluates: MAX5432/MAX5433 19-4062 Rev 0 2/08 MAX5432 Evaluation Kit General Description Features The MAX5432 evaluation kit (EV kit) is an assembled Power-On Recall of Wiper Position from and tested printed-circuit board (PCB) that evaluates Nonvolatile Memory the MAX5432 IC. The MAX5432 is a 32-tap, 50k, non- 2.7V to 5.25V Single-Supply Operation volatile, linear digital potentiometer communicating over 2 I C. The MAX5432 features an internal nonvolatile Configurable Device Address EEPROM used to store the potentiometers wiper posi- 2 On-Board USB Interface Circuit for I C- tion for initialization during power-up. The EEPROM is Compatible Signals 2 programmed through the I C-compatible serial inter- face, communicating at data rates up to 400kbps. The USB-PC Connection and Powered (Cable 2 I C signals can be transmitted through an on-board USB Included) 2 interface circuit using a computer or a user-supplied I C 2 PCB Pads for User-Supplied I C-Compatible bus along with the PCB interfacing pads. Signals The EV kit also features Windows 2000/XP/Vista - PCB Pads for Potentiometer Signals L, W, H compatible software that provides a professional user interface for exercising the MAX5432s features. The Proven USB-Compatible PCB Layout program is menu driven and offers a graphical user Evaluates the MAX5432LETA, MAX5432META, interface (GUI) complete with buttons, track bars, and MAX5433LETA, and MAX5433META in a 3mm x pulldown menus. 3mm 8-pin TDFN package The EV kit is powered from a 3.3V source generated from the EV kits USB interface circuit, or an external Windows 2000/XP/Vista (32-Bit)-Compatible 2.7V to 5.25V DC power supply. The MAX5432 IC is Software available in two versions, the MAX5432LETA and the Fully Assembled and Tested 2 MAX5432META each version has two selectable I C addresses. The MAX5432 EV kit is shipped with a Ordering Information MAX5432LETA IC installed. The EV kit can also evaluate the MAX5433 (100k) after PART TYPE IC replacement (U1). The MAX5433 is also available in MAX5432EVKIT+ EV Kit 2 two versions each version has four unique I C addresses. +Denotes lead-free and RoHS-compliant. Windows Vista is a registered trademark of Microsoft Corp. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 0.1F 10%, 16V X7R ceramic 22pF 5%, 50V C0G ceramic C1, C3C10, capacitors (0603) capacitors (0603) 11 C18, C19 2 Murata GRM1885C1H220J C17, C26 Murata GRM188R71C104K TDK C1608X7R1C104K TDK C1608C0G1H220J 10F 20%, 6.3V X5R ceramic 3300pF 10%, 50V X7R ceramic capacitors (0805) capacitor (0603) C2, C13, C15 3 C20 1 Murata GRM21BR60J106M Murata GRM188R71H332K TDK C2012X5R0J106M TDK C1608X7R1H332K 10pF 5%, 50V C0G ceramic Green LED (0603) D1 1 capacitors (0603) Panasonic LNJ314G8TRA C11, C12 2 Murata GRM1885C1H100J Not installed, ferrite-bead inductor FB1 0 TDK C1608C0G1H100J (0603) 1F 10%, 10V X5R ceramic JU1 1 3-pin header C14, C16, capacitors (0603) 7 JU2JU6 5 2-pin headers C21C25 Murata GRM188R61A105K USB series type-B right-angle male TDK C1608X5R1A105K P1 1 receptacle Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com.MAX5432 Evaluation Kit Component List (continued) DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION R1 1 0 5% resistor (0603) Y1 1 16MHz crystal R2 1 220 5% resistor (0603) Y2 1 6MHz crystal R3 1 10k 5% resistor (0603) 6 Shunts R4 1 2.2k 5% resistor (0603) 1 USB high-speed A-to-B cable, 6ft R5 1 1.5k 5% resistor (0603) 1 PCB: MAX5432 Evaluation Kit+ R6, R7 2 27 5% resistors (0603) *EP = Exposed pad. R8R11 4 2k 5% resistors (0603) Component Suppliers R12 1 100k 5% resistor (0603) Nonvolatile linear taper digital SUPPLIER PHONE WEBSITE U1 1 potentiometer (8-pin TDFN-EP*) M ur ata Mfg . C o., Ltd . 770-436-1300 www.murata.com Maxim MAX5432LETA+ Panasonic Corp. 800-344-2112 www.panasonic.com 32-bit microcontroller TDK Corp. 847-803-6100 w w w .comp onent.tdk. com (68-pin QFN-EP*, 10mm x 10mm) U2 1 Maxim MAXQ2000-RAX+ Note: Indicate that you are using the MAX5432 or MAX5433 when contacting these component suppliers. 93C46 type 3-wire EEPROM 16-bit U3 1 architecture (8-pin SO) MAX5432 EV Kit Files UART-to-USB converter U4 1 (32-pin TQFP, 7mm x 7mm) FILE DESCRIPTION 3.3V regulator (5-pin SC70) U5 1 INSTALL.EXE Installs the EV kit files on the computer Maxim MAX8511EXK33+ MAX5432.EXE Application program 2.5V regulator (5-pin SC70) U6 1 FTD2XX.INF USB driver file Maxim MAX8511EXK25+ UNINST.INI Uninstalls the EV kit software Low-voltage level translators U7, U8 2 (10-pin MAX ) USB Driver Help.PDF USB driver installation help file Maxim MAX1840EUB+ Note: The MAX5432 EV kit software can be downloaded from MAX is a registered trademark of Maxim Integrated Products, Inc. www.maxim-ic.com/evkitsoftware. Save the EV kit software to a temporary folder and Quick Start uncompress the ZIP file. Required Equipment 2) Install the EV kit software on the computer by run- Before beginning, the following equipment is needed: ning the INSTALL.EXE program inside the tempo- MAX5432 EV kit (USB cable included) rary folder. The program files are copied and icons are created in the Windows Start Programs menu. A user-supplied Windows 2000/XP/Vista-compatible PC with a spare USB port 3) Verify that a shunt is installed on pins 1-2 of jumper JU1. This configures the MAX5432 ICs VDD to operate Ohmmeter from the 3.3V generated by the USB interface circuit. Note: In the following sections, software-related items 4) Verify that a shunt is installed on jumpers JU2 and are identified by bolding. Text in bold refers to items 2 JU3. This configures the I C input pins to receive directly from the EV kit software. Text in bold and under- signals from the USB interface circuit. lined refers to items from the Windows operating system. 5) Verify that a shunt is installed on jumper JU4. This Procedure 2 configures the MAX5432LETA I C address to 0x50. The MAX5432 EV kit is fully assembled and tested. 6) Verify that no shunts are installed on jumpers JU5 and Follow the steps below to verify board operation: JU6, the L PCB pad is not connected to GND, and 1) Visit www.maxim-ic.com/evkitsoftware to download the H PCB pad is not connected to the W PCB pad. the latest version of the EV kit software, 5432Rxx.ZIP. 2 Evaluates: MAX5432/MAX5433