4.7.1. On-Board Oscillators
Figure 11. Intel® Stratix® 10 GX FPGA Board - Clock Inputs and Default Frequencies
| Source | Schematic Signal Name | Frequency | I/O Standard | Intel® Stratix® 10 FPGA Pin Number | Application |
|---|---|---|---|---|---|
| U7 | REFCLK1_P | 155.52 MHz | LVDS | AM41 | Transceiver reference clocks Bank 1D |
| REFCLK1_N | LVDS | AM40 | |||
| REFCLK_QSFP1_P | 644.53125 MHz | LVDS | Y38 | QSFP reference clocks | |
| REFCLK_QSFP1_N | LVDS | Y37 | |||
| REFCLK_DP_P | 135 MHz | LVDS | AK38 | DisplayPort reference clocks | |
| REFCLK_DP_N | LVDS | AK37 | |||
| REFCLK4_P | 156.25 MHz | LVDS | AF9 | Transceiver reference clocks Bank 4E | |
| REFCLK4_N | LVDS | AF10 | |||
| REFCLK_FMCA_P | 625 MHz | LVDS | AT9 | FMC reference clocks | |
| REFCLK_FMCA_N | LVDS | AT10 | |||
| CLK_ENET_P | 125 MHz | LVDS | AN27 | Ethernet clock | |
| CLK_ENET_N | LVDS | AN28 | |||
| FPGA_OSC_CLK1 | 125 MHz | LVDS | BA22 | FPGA configuration clock | |
| MAXV_OSC_CLK1 | 125 MHz | LVDS | – | MAX® V clock | |
| CLK_CONFIG | 125 MHz | LVDS | – | MAX® V clock | |
| U9 | CLK_FPGA_50M | 50 MHz | 1.8V LVCMOS | BH33 | FPGA clock |
| CLK_MAXV_50M | 50 MHz | 1.8V LVCMOS | – | MAX V clock | |
| CLK_HILO_P | 133 MHz | LVDS | M35 | HiLo memory clock | |
| CLK_HILO_N | LVDS | N35 | |||
| CLK_FOGA_B3L_P | 100 MHz | LVDS | J20 | FPGA clock for Bank 3L | |
| CLK_FPGA_B3L_N | LVDS | J19 | |||
| PCIE_OB_REFCLK_P | 100 MHz | LVDS | AP41 | On board PCIe* reference clock | |
| PCIE_ON_REFCLK_N | LVDS | AP40 | |||
| X1 | REFCLK_SDI_P | 148.5 MHz | LVDS | P41 | SDI reference clocks |
| REFCLK_SDI_N | LVDS | P40 |