Evaluates: MAX5389 19-5219 Rev 0 4/10 MAX5389 Evaluation Kit General Description Features The MAX5389 evaluation kit (EV kit) is an assem- S 2.8V to 5.5V Single-Supply Operation bled and tested PCB that features the MAX5389M S 2.6V or 3.3V MAX5389 VDD input 50kI dual digital potentiometer. The EV kit provides a S Supports Pushbutton or Stand-Alone Digital Input mechanical pushbutton-controlled interface or a user- Interfacing supplied digital interface for the IC digital inputs for changing the potentiometer wipers. The EV kit operates from an external 2.8V to 5.5V power supply applied at the VIN and GND PCB pads. The Ordering Information MAX5389 operates from a 2.6V to 5.5V VDD supply. Additional LDO regulators are provided to operate the PART TYPE MAX5389 VDD input at 2.6V or 3.3V. The on-board regu- MAX5389EVKIT+ EV Kit lators require a 200mV overhead above their respective +Denotes lead(Pb)-free and RoHS compliant. outputs. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION SW1SW6 6 Momentary pushbutton switches 10FF Q10%, 6.3V X5R ceramic capacitors (0805) Dual 50kI potentiometer C1, C3, C5 3 Murata GRM21BR60J106K U1 1 (14 TSSOP) TDK C2012X5R0J106K Maxim MAX5389MAUD+ 3.3V LDO regulator (5 SC70) 1FF Q10%, 16V X5R ceramic C2, C4, C6 3 U2 1 Maxim MAX8511EXK33+ capacitors (0603) (Top Mark: AEI) TDK C1608X5R1C105K 2.6V LDO regulator (5 SC70) 0.1FF Q10%, 10V X7R ceramic U3 1 Maxim MAX8511EXK26+ capacitor (0603) C7 1 (Top Mark: AEG) Murata GRM188R71H104K TDK C1608X7R1H104K Octal switch debouncer U4 1 (20 SSOP) Not installed, ceramic capacitor C8 0 Maxim MAX6818EAP+ (0603) J1 1 2 x 8-pin header 11 Shunts (JU1JU11) JU1 1 4-pin header PCB: MAX5389 EVALUATION 1 KIT+ JU2JU11 10 2-pin headers R1R6 6 100kI Q5% resistors (0603) Component Suppliers SUPPLIER PHONE WEBSITE Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX5389 when contacting these component suppliers. 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.MAX5389 Evaluation Kit Procedure Quick Start The MAX5389 EV kit is fully assembled and tested. Required Equipment Follow the steps below to verify board operation: MAX5389 EV kit 1) Verify that shunts are configured in the EV kit default 5V, 100mA power supply state for proper startup operation (see Table 1). Two multimeters 2) Apply a 5V power source across the VIN and GND PCB pads. 3) Connect the multimeters to measure voltage across the WA and LA PCB pads and WB and LB PCB pads Table 1. Jumper Configuration (JU1JU11) JUMPER SHUNT POSITION EV KIT FUNCTION 1-2 VDD = 3.3V 1-3* VDD = 2.6V JU1 1-4 VDD = Voltage applied at the VIN PCB pad Not installed VDD not powered or VDD signal applied at header J1-1 Installed CSA input pushbutton controlled JU2 Not installed* CSA input logic-low or signal applied at header J1-3 Installed* UDA input pushbutton controlled JU3 Not installed UDA input connects to the VIN supply or power applied at header J1-5 Installed* INCA input pushbutton controlled JU4 Not installed INCA input connects to the VIN supply or power applied at header J1-7 Installed CSB input pushbutton controlled JU5 Not installed* CSB input logic-low or signal applied at header J1-9 Installed* UDB input pushbutton controlled JU6 Not installed UDB input connects to the VIN supply or power applied at header J1-11 Installed* INCB input pushbutton controlled JU7 Not installed INCB input connects to the VIN supply or power applied at header J1-13 Installed* HA connected to the VDD voltage source JU8 Not installed HA disconnected from the VDD voltage source Installed* LA connected to GND JU9 Not installed LA disconnected from GND Installed* HB connected to the VDD voltage source JU10 Not installed HB disconnected from the VDD voltage source Installed* LB connected to GND JU11 Not installed LB disconnected from GND *Default position. 2 Evaluates: MAX5389