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Chapter 2: Board Components
2–45
Power Supply
May 2013
Altera Corporation
Cyclone V GX FPGA Development Board
Reference Manual
Power Supply
You can power up the development board either from a laptop-style DC power input
or from the PCI Express edge connector. The input voltage must be in the range of
14 V to 20 V. The DC voltage is then stepped down to various power rails used by the
board components and installed into the HSMC connectors.
Table 2–33
outlines the allowable power inputs.
An on-board multi-channel analog-to-digital converter (ADC) measures the current
for several specific board rails.
H7
FSM_D7
B7
2.5-V
Data bus
E1
FSM_D8
B8
2.5-V
Data bus
E3
FSM_D9
C9
2.5-V
Data bus
F3
FSM_D10
A9
2.5-V
Data bus
F4
FSM_D11
A10
2.5-V
Data bus
F5
FSM_D12
C10
2.5-V
Data bus
H5
FSM_D13
D9
2.5-V
Data bus
G7
FSM_D14
A11
2.5-V
Data bus
E7
FSM_D15
B11
2.5-V
Data bus
Table 2–32. Flash Pin Assignments, Schematic Signal Names, and Functions (Part 3 of 3)
Board
Reference (U18)
Schematic Signal Name
Cyclone V GX
Pin Number
I/O Standard
Description
Table 2–33. Power Inputs
Power Source
Voltage (V)
Current (A)
Maximum Wattage (W)
Laptop-style DC input
15.0
4.3
65
25-W PCI Express edge connector
3.3
3.0
9
12.0
2.1
16
75-W PCI Express edge connector
3.3
3.0
9
12.0
5.5
66