Intel® Stratix® 10 DX FPGA Development Kit User Guide

ID 683561
Date 9/25/2023
Public
Document Table of Contents

A.3. Clock Circuits

All clocks are supplied by two on-board low-jitter programmable clock generator circuits. The following figure depicts the clock connection to the Intel® Stratix® 10 DX FPGA:
Figure 40. Clock Connection
Table 11.  On-board Oscillators
Signal Name Frequency (MHz) I/O Standard Application
Source: U7 (Si5332A)
CLK_100M_FPGA_3H_P 100 LVDS FPGA Fabric Clock

Bank 3H

CLK_100M_FPGA_3H_N LVDS
CLK_125M_LVC1_CONFIG 125 LVCMOS FPGA Config Clock
CLK_133M_DDR4_0_P 133.33 LVDS FPGA Fabric Clock

Bank 3J

CLK_133M_DDR4_0_N LVDS
CLK_133M_DDR4_1_P 133.33 LVDS FPGA Fabric Clock

Bank 2L

CLK_133M_DDR4_1_N LVDS
CLK_133M_DIMM_1_P 133.33 LVDS FPGA Fabric Clock

Bank 3B

CLK_133M_DIMM_1_N LVDS
CLK_133M_DIMM_0_P 133.33 LVDS FPGA Fabric Clock

Bank 2C

CLK_133M_DIMM_0_N LVDS
CLK_100M_FPGA_3L_0_P 100 LVDS FPGA Fabric Clock

Bank 3L

CLK_100M_FPGA_3L_0_N LVDS
CLK_100M_TEST_P 100 HCSL Clock for bench test
CLK_100M_TEST_N HCSL
Source: U9 (Si5391A)
CLk_156M.25M_QSFP1_P 156.25 LVPECL Reference Clock for Transceivers 9A
CLk_156M.25M_QSFP1_N LVPECL
CLk_156M.25M_QSFP0_P 156.25 LVPECL Reference Clock for Transceivers 9A
CLk_156.25M_QSFP0_N LVPECL
CLk_312M.50M_QSFP0_P 312.50 LVPECL Reference Clock for Transceivers 9A
CLk_312M.50M_QSFP0_N LVPECL
CLk_312M.50M_QSFP1_P 312.50 LVPECL Reference Clock for Transceivers 9A
CLk_312M.50M_QSFP1_N LVPECL
CLk_312M.50M_QSFP2_P 312.50 LVPECL Reference Clock for Transceivers 9A
CLk_312M.50M_QSFP2_N LVPECL
CLK_100M_FPGA_2I_P 100 LVDS FPGA Fabric Clock

Bank 2I

CLK_100M_FPGA_2I_N LVDS
CLK_100M_FPGA_2J_1_P 100 LVDS FPGA Fabric Clock

Bank 2J

CLK_100M_FPGA_2J_1_N LVDS
CLK_100M_FPGA_2J_0_P 100 LVDS FPGA Fabric Clock

Bank 2J

CLK_100M_FPGA_2J_0_N LVDS
CLK_100M_Si5391_P 100 LVDS Clock to U7

Input 2

CLK_100M_Si5391_N LVDS
The default clock frequencies are as listed in the table. All the clock frequencies can be changed by using the Clock GUI.