2–16
Chapter 2: Board Components
Power Supply
Power Supply
The development board is powered up through a USB cable. The blue LED
illuminates when the board is powered up. Alternatively, you can also power-up the
board by connecting three 1.5-V batteries in series (to obtain 4.5 V) through connectors
BATT+and BATT-
.
1
Once you plug the USB cable into the board’s USB connector and connect the other
end of the cable to a PC USB slot, the board disconnects the battery supply and switch
over to obtain power supply from the USB cable.
Table 2–23 lists the power rails.
Table 2–23. Power Rails
Rail
1
Schematic Signal Name
Voltage (V)
1.8
Device Pin
VCCINT
VCCIO
Description
CPLD core voltage
1.8_VCCINT
VAR_VCCIO
3.3V
2
1.2 – 3.3
3.3
CPLD I/O bank 2 variable voltage
Power for I/O bank 1 and EEPROM
Power-up USB peripheral
3
VCCIO
4
5V
5.0
5V_USB
Table 2–24 lists the power rail component reference and manufacturing information.
Table 2–24. Power Supply Rail Component Reference and Manufacturing Information
Manufacturing
Part Number
Manufacturer
Website
Board Reference
Description
Manufacturer
400 mA, 2.25 MHz synchronous
step-down DC/DC converter
U7
Linear Technology
LTC3670
www.linear.com
Statement of China-RoHS Compliance
Table 2–25 lists hazardous substances included with the kit.
Table 2–25. Table of Hazardous Substances’ Name and Concentration Notes (1), (2)
Hexavalent
Chromium
(Cr6+)
Polybrominated
diphenyl Ethers
(PBDE)
Lead
(Pb)
Cadmium
(Cd)
Mercury Polybrominated
Part Name
(Hg)
biphenyls (PBB)
MAX V CPLD development board
Type A-B USB cable
X*
0
0
0
0
0
0
0
0
0
0
0
Notes to Table 2–25:
(1) 0 indicates that the concentration of the hazardous substance in all homogeneous materials in the parts is below the relevant threshold of the
SJ/T11363-2006 standard.
(2) X* indicates that the concentration of the hazardous substance of at least one of all homogeneous materials in the parts is above the relevant
threshold of the SJ/T11363-2006 standard, but it is exempted by EU RoHS.
MAX V CPLD Development Board Reference Manual
January 2011 Altera Corporation
ALTERA [ ALTERA CORPORATION ]
