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Table 5-13: On-Board Oscillators
Source
Schematic Signal Name
Frequency
I/O Standard
Arria 10
FPGA Pin
Number
Application
U14
REFCLK_SMA_P
302.083333
MHz
1.8 V LVDS
N37
Transceiver reference
clocks Bank-1H
REFCLK_SMA_N
1.8 V LVDS
N38
REFCLK_FMCB_P
625 MHz
1.8 V LVDS
AA8
FMC B reference
clocks
REFCLK_FMCB_N
1.8 V LVDS
AA7
REFCLK_FMCA_P
625 MHz
1.8 V LVDS
AN8
FMC A reference
clocks
REFCLK_FMCA_N
1.8 V LVDS
AN7
PCIE_OB_REFCLK_P
100 MHz
1.8 V LVDS
AN37
PCIE reference clocks
PCIE_OB_REFCLK_N
1.8 V LVDS
AN38
U26
CLK_EMI_P
133.33 MHz
1.8 V LVDS
F34
EMI reference clocks
CLK_EMI_N
1.8 V LVDS
F35
REFCLK_QSFP_P
644.53125
MHz
1.8 V LVDS
R37
QSFP reference clocks
REFCLK_QSFP_N
1.8 V LVDS
R38
REFCLK_SFP_P
644.53125
MHz
1.8 V LVDS
AA37
SFP reference clocks
REFCLK_SFP_N
1.8 V LVDS
AA38
REFCLK_DP_P
270 MHz
1.8 V LVDS
AC37
Display port (DP)
reference clocks
REFCLK_DP_N
1.8 V LVDS
AC38
X1
REFCLK_SDI_P
148.35 MHz
2.5 V
L37
SDI reference clocks
REFCLK_SDI_N
2.5 V
L38
X2
CLK_125_P
125 MHz
2.5 V
BD25
125 MHz reference
clocks for Arria 10
FPGA
CLK_125_N
2.5 V
BC24
X3
100M_OSC_P
100 MHz
2.5 V
-
Programmable
Oscillator default
100MHz
100M_OSC_N
2.5 V
-
U53
MV_CLK_50
50 MHz
1.8 V
-
MAX V System
Controller clock
CLK_50
1.8 V
AU33
Arria 10 FPGA
reference clock
Off-Board Clock I/O
The development board has input and output clocks which can be driven onto the board. The output
clocks can be programmed to different levels and I/O standards according to the FPGA device’s specifica‐
tion.
5-24
Off-Board Clock I/O
UG-01170
2015.06.26
Altera Corporation
Board Components