VersaClock 5 - 5P49V5901 Evaluation Board USER GUIDE Introduction The evaluation board is designed to help the customer evaluate the 5P49V5901, the latest addition to the family of programmable devices in IDT s Timing portfolio. When the board is connected to a PC running IDT Timing Commander Software through USB, the device can be configured and programmed to generate frequencies with best-in-class performances. Board Overview Use the following diagram to identify: power supply jacks, USB connector, input and output frequency SMA connectors. Figure 1. Board Overview REVISION D 04/28/15 1 2015 Integrated Device Technology, Inc. VERSACLOCK 5 - 5P49V5901 Evaluation Board 1 OUT0 - This is a buffered output of the input reference clock, singled ended. 2 Power supply jack, J16 Connect to 3.3V, 2.5V or 1.8V for the core voltage of the device. 3 CLKIN S/CLKINB S SMA pair used to monitor the differential input CLKIN/CLKINB. 4 Differential Input clock connector A differential clock can be connected as a source for the device. 5 5P49V5901 the device to be evaluated. 6 Crystal On-board crystal, 25MHz. There are two package holders for crystals: one through-hold and a surface-mount (3225) on the bottom layer of the board. 7 XIN connector This SMA connector is for single-ended clock input. Please note the full swing of this input is 1.2V maximum. 8 USB connector Used this connector to connect with your PC to run IDT Timing Commander Software. 9 OUT1 /OUT1B Output 1. It can be a differential pair or two individual single-ended outputs. By default, it s an LVPECL differential output. A Output voltage selector 4-way header to select an output voltage. The center pin is the output voltage. Use the jumper to select from 1.8V, 2.5V or 3.3V. VDDO J is the voltage from J15 (see E). B OUT2/OUT2B Output 2. It can be a differential pair or two individual single-ended outputs. By default, it s an LVPECL differential output. C Ground Jack J17. If J15 and/or J16 is used for power supply, this jack is the power return. D OUT3/OUT3B Output 3. It can be a differential pair or two individual single-ended outputs. By default, it s an LVPECL differential output. E Output Voltage Jack J15. Connect to a voltage of 1.8V, 2.5V or 3.3V for output voltages. F OUT4/OUT4B Output 4. It can be a differential pair or two individual single-ended outputs. By default, it s an LVPECL differential output. Board Power Supply Core Voltages The core voltage includes a digital voltage VDDD and an analog voltage VDDA. Both core voltages can be powered by an external bench power supply or by USB. Bench Power Supply To supply VDDD with a bench power supply, connect power to J16. To supply VDDA with a bench power supply, connect power to J15. In the same time, place the jumpers in JP3 and JP5 to connect VDDA J and VDDD J, respectively. USB Power Supply When the board is connected to a PC through a USB cable, on-board voltage regulators will generate a 3.3V for the device. In this case, place the jumpers in JP3 and JP5 to connect VDDA REG and VDDD REG, respectively. See JP5 jumper position for VDDD REG in the following figure. USB power source is recommended because it s readily available right from your laptop. 2 REVISION D 04/28/15