MAX20334EVKIT# Analog Devices

Click here for production status of specific part numbers. Evaluates: MAX20334 MAX20334 Evaluation Kit General Description Quick Start The MAX20334 evaluation kit (EV kit) is a fully assembled Required Equipment and tested circuit board that demonstrates the MAX20334 MAX20334 EV kit overvoltage and surge-protected dual SPDT data line Computer switch device intended for use with portable devices. The EV kit comes with the MAX20334EWC+T installed. A-Male to B-Male USB cable USB storage Features Procedure 2.7V to 5.5V Operating Voltage Range No Power Supply Needed Testing The EV kit is fully assembled and tested. Follow the steps Power and FLAG LED Reading below to verify board operation: Proven PCB Layout 1) Connect a USB cable from the computer to J1. Verify Fully Assembled and Tested LED2 is on. 2) Connect the USB storage to J2. Verify the computer EV Kit Contents can read the device. EV kit board containing a MAX20334 3) Connect the USB storage to J3. Verify the computer does not see the device. 4) Move shunts on JU5 and JU6 from the 23 to the 12 position. Verify the computer can read the device. Detailed Description The MAX20334 EV kit is a fully assembled and tested circuit board demonstrating the MAX20334 overvoltage and surge-protected dual SPDT data line switch device in Ordering Information appears at end of data sheet. a 12-bump WLP package. LED Indicator The EV kit features two LED indicators. LED1 indicates the status of FLAG and LED2 indicates the presence of a power source on VPU. 319-100340 Rev 0 4/19Evaluates: MAX20334 MAX20334 Evaluation Kit FLAG V Power, VBUS, VPU CC Jumper JU1 connects FLAG to the LED1 indicator and to The EV kit is powered by an external power source or a VPU through a 10k pullup resistor. In the OVP or ther- USB cable. Use TP10 when applying an external power mal shutdown condition, FLAG is driven low and LED1 source to V or use a USB cable to power on the EV kit CC is on. with shunts in the default position (Table 3). Enable Digital Inputs Use jumper JU2 to control active-low enable input Use jumper JU5 and JU6 to control digital inputs CSA and (Table 2). CSB (Table 4). Table 1. JU1 Jumper Setting JUMPER SHUNT POSITION DESCRIPTION Installed* FLAG is connected to both the LED1 indicator and VPU using a 10k pullup resistor. JU1 Not Installed FLAG is unconnected. *Default position. Table 2. JU2 Jumper Setting JUMPER SHUNT POSITION DESCRIPTION Installed* EN is pulled low. The switches are controlled by CSA and CSB. JU2 Not installed EN is pulled high and all switches are open. *Default position. Table 3. JU3, JU4, JU7, JU8 Jumper Settings JUMPER SHUNT POSITION DESCRIPTION 1-2* Connect VB1 to VBUS JU3 2-3 J3 is not powered 1-2* Connect VB2 to VBUS JU4 2-3 J2 is not powered Installed* Connect V to VPU CC JU7 Disconnect V from VPU. An external voltage source can be applied to TP10 to provide CC Not Installed power for V CC Connect VPU to VEXT. An external source can be applied to TP4 to provide power 1-2 for VPU JU8 2-3* Connect VPU to VBUS *Default position. Maxim Integrated 2 www.maximintegrated.com