Evaluates: MAX4989 19-4581 Rev 0 4/09 MAX4989 Evaluation Kit General Description Features The MAX4989 evaluation kit (EV kit) provides a proven S USB Connectors for Inputs and Outputs design to evaluate the MAX4989 Hi-Speed 2-of-4 USB S USB Powered (Cable Included) 2.0 crosspoint switch. The EV kit contains two sub cir- S Eye Diagram Test Circuit with SMA Input/Output cuits, a typical USB crosspoint switch application (top S Jumper-Selectable USB Channel Connection half), and a test circuit (bottom half). S Lead(Pb)-Free and RoHS Compliant The USB crosspoint switch application circuit is USB powered by the USB host. USB input/output connectors S Proven PCB Layout are also provided to easily interface with USB devices. S Fully Assembled and Tested All USB signal traces are 90I differential controlled- impedance traces. A separate test circuit is also provided at the bottom of the MAX4989 EV kit for eye diagram evaluation using SMA connections and 90I controlled-impedance traces. Ordering Information The MAX4989 EV kit PCB comes with two MAX4989ETD+ PART TYPE devices installed. The MAX4989ETD+ is available in a MAX4989EVKIT+ EV Kit lead(Pb)-free 14-pin, 3mm x 3mm TDFN package. +Denotes lead(Pb)-free and RoHS compliant. Component List DESIGNATION QTY DESCRIPTION DESIGNATION QTY DESCRIPTION 0.1FF Q10%, 16V X7R ceramic R1, R2 2 680I Q5% resistors (0603) C1C4 4 capacitors (0603) R3R6 0 Not installed, resistors (0603) TDK C1608X7R1C104K SMA1+, SMA1-, Edge-mount receptacle SMA 4 20V, 500mA Schottky diodes SMA2+, SMA2- connectors D1, D2, D3 3 (SOD123) USB 2.0 crosspoint switches Fairchild Semi MBR0520L U1, U2 2 (14 TDFN-EP*) USB type-B, right-angle PC-mount Maxim MAX4989ETD+ J1, J2 2 receptacles 6 Shunts USB type-A, right-angle 2 USB high-speed A-to-B cables, 6ft J3, J4 2 PC-mount receptacles 1 PCB: MAX4989 EVALUATION KIT+ JU1JU6 6 3-pin headers *EP = Exposed pad. LED1, LED2 2 Orange LEDs (0603) Component Suppliers SUPPLIER PHONE WEBSITE Fairchild Semiconductor 888-522-5372 www.fairchildsemi.com TDK Corp. 847-803-6100 www.component.tdk.com Note: Indicate that you are using the MAX4989 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.MAX4989 Evaluation Kit Quick Start Detailed Description of Hardware The MAX4989 evaluation kit (EV kit) provides a proven Required Equipment design to evaluate the MAX4989 Hi-Speed 2-of-4 USB MAX4989 EV kit (2 USB cables included) 2.0 crosspoint switch. The EV kit contains two sub cir- M M User-supplied Windows 2000/XP or Windows cuits, a typical USB crosspoint switch application (top M Vista PC with a spare USB port half), and a test circuit (bottom half). User-supplied USB signal source (e.g., USB 2.0 Application Circuit flash drive) The application circuit is located at the top of the board. Note: In the following sections, text in bold and under- Jumpers JU1, JU2, and JU3 are used to control the lined refers to items from the Windows operating system. switch connection (see Table 1). The MAX4989 is pow- ered from the USB port that is connected to the USB Procedure host. To use a user-supplied power supply, connect a 5V The MAX4989 EV kit is fully assembled and tested. supply to the VCC and GND pads. All signal traces in the Follow the steps below to verify board operation: USB application circuit are 90I differential controlled- 1) Place a shunt across pins 2-3 of jumper JU1. impedance traces. 2) Place a shunt across pins 1-2 of jumper JU2. Test Diagram Circuit 3) Place a shunt across pins 2-3 of jumper JU3. A separate test circuit is also provided at the bottom of 4) Connect the USB cable from the PC to the J1 USB the MAX4989 EV kit for timing critical tests such as eye connector on the EV kit. diagrams. The test circuit is powered by applying a 2.7V to 5.5V power supply at the VCC2 and GND2 pads. 5) Verify that LED1 turns on. 6) Connect the USB signal source to the J3 USB con- nector on the EV kit. Table 1. Jumper Settings 7) Go to the Windows System Properties window SHUNT POSITION DESCRIPTION (Windows logo key + Pause Break key from key- JU1 JU2 JU3 board) to locate and open the Device Manager. 2-3 2-3 2-3 Shutdown Under the Universal Serial Bus Controllers subject 1-2 2-3 2-3 Illegal state directory, verify that the USB 2.0 signal source is 2-3 1-2 2-3 J1 and J3 connected recognized through the USB port. 1-2 1-2 2-3 J2 and J3 connected 2-3 2-3 1-2 J2 and J4 connected 1-2 2-3 1-2 J1 and J4 connected 2-3 1-2 1-2 Illegal state 1-2* 1-2* 1-2* Shutdown *Default position. Table 2. Test Circuit Jumper Settings SHUNT POSITION DESCRIPTION JU4 JU5 JU6 2-3 1-2 2-3 On All other combinations Off Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp. 2 Evaluates: MAX4989