9ZXL1951D PCIe Clock Generator User Guide Evaluation Board Introduction The evaluation board is designed to help the customer evaluate the 9ZXL1951D. The device is programmable through an SMBus interface. This user guide details the board set and connection, as well as the companion GUI installation for communicating to the device. The board has a self-contained USB to SMBus interface. Board Overview Use Figure 1 and Table 1 to identify: USB connector, input and output frequency SMA connectors. Figure 1. Evaluation Board Overview 6 7 8 5 4 3 1 2 2018 Integrated Device Technology, Inc. 1 March 23, 20189ZXL1951D PCIe Clock Generator Evaluation Board User Guide Table 1. Evaluation Board Pins and Functions Label Number Name On-board Connector Label Function Used for power-up of the device and connection with a PC, and 1 USB Interface J72 for interaction with the IDT PCIe GUI. On-board USB to SMBus connection. 2 Power LED LD2 Power from USB connector. 3 SMBus Header J1 External SMBus connection. 4 Input Clock J20, J17 Input clock SMA connector. Output Enable for: J64, J63, J62, J61 J59,J58, 5 Jumper Setting J57, J56 OUT12, OUT11, OUT10, OUT9, OUT8, OUT7, OUT6, OUT5. PLL High Bandwidth mode: Connect J48 pin 1 and pin 2. PLL Bypass mode: Remove jumper in J48. 6 PLL Operation J48 PLL Low Bandwidth mode: Connect J48 pin 2 and pin 3. Note: Jumper J48 setting needs to power-cycle the board to take effect. SMB A1 SMB A0 SMB Addr 0 0 0xD8 0 M 0xDA 0 1 0xDE M 0 0xC2 7 Address Select J49, J50 M M 0xC4 M 1 0xC6 1 0 0xCA 1 M 0xCC 1 1 0xCE 8 Output Ports J1 to J42 HCSL clock output. Board Power Supply By default, the board is set to be used with the USB power supply. USB Power Supply When the board is connected to a PC through a USB cable, the on-board voltage regulators will generate 3.3V for the device. Connecting the Board The board is connected to a PC through a USB connector for configuring and programming the device. The USB interface also provides a +5V power supply to the board, from which on-board voltage regulators generate various voltages for the core as well as for each output. The LD2 power LED will light up to indicate a successful connection. 2018 Integrated Device Technology, Inc. 2 March 23, 2018