Agilex™ 3 FPGA and SoC C-Series Development Kits User Guide

ID 851698
Date 9/02/2025
Public
Document Table of Contents

A.4. Clock Circuits

Figure 30.  Agilex™ 3 FPGA/FPGA and SoC C-Series Development Kit Clocks and Default Frequencies
Table 31.  Onboard Oscillators Sources for the FPGA
Source Schematic Signal Name

Frequency

(MHz)

I/O Standard

Agilex™ 3 Pin Number

(P/N)
Application
U23 HVIO_PLLREFCLK 100 3.3V LVCMOS AJ27 HVIO PLL reference clock
LP4_2A_REFCLK_P/N 166.67 LVDS AF3/AE4 LPDDR4 bank 2A reference clock
LP4_3A_REFCLK_P/N 166.67 LVDS A7/B6 LPDDR4 bank 3A reference clock
PTP_3A_REFCLK 250 1.1V LVCMOS E2 PTP bank 3A reference clock
FPGA_FABRIC_TOD_CLK 125 1.1V LVCMOS N1 TOD bank 2A reference clock
PPS_2A_REFCLK 10 1.1V LVCMOS N2 PPS bank 2A reference clock
MIPI_2A_REFCLK_P/N 150 LVDS AC6/AC5 MIPI bank 2A reference clock
MIPI_3A_REFCLK_P/N 150 LVDS F2/E1 MIPI bank 3A reference clock
DP_BANK1A_REFCLK_P/N 150 LVDS P25/P24 DisplayPort bank 1A reference clock
RPI_PCIE_REFCLK_P/N 100 HCSL J14.4/J14.5 PCIe* root port reference clock
PCIE_EP_REFCLK_P/N 100 HCSL M24/M25 PCIe* bank 1A endpoint clock
Y5 SDM_CONFIG_CLK 100 1.8V LVCMOS AG11 FPGA configuration clock
Y1 HPS_OSC_CLK 25 1.8V LVCMOS A23 HPS system clock