Altera MAX V CPLD Development Board - Manual (Page 22)

2–16 Chapter 2: Board Components
Power Supply
MAX V CPLD Development Board Reference Manual January 2011 Altera Corporation
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 2–24 lists the power rail component reference and manufacturing information.
Statement of China-RoHS Compliance
Table 2–25 lists hazardous substances included with the kit.
Table 2–23. Power Rails
Rail Schematic Signal Name Voltage (V) Device Pin Description
1 1.8_VCCINT 1.8 VCCINT CPLD core voltage
2 VAR_VCCIO 1.2 – 3.3 VCCIO CPLD I/O bank 2 variable voltage
3 3.3V 3.3 VCCIO Power for I/O bank 1 and EEPROM
4 5V 5.0 5V_USB Power-up USB peripheral
Table 2–24. Power Supply Rail Component Reference and Manufacturing Information
Board Reference Description Manufacturer
Manufacturing
Part Number
Manufacturer
Website
U7
400 mA, 2.25 MHz synchronous
step-down DC/DC converter
Linear Technology LTC3670 www.linear.com
Table 2–25. Table of Hazardous Substances’ Name and Concentration Notes (1) , (2)
Part Name
Lead
(Pb)
Cadmium
(Cd)
Hexavalent
Chromium
(Cr6+)
Mercury
(Hg)
Polybrominated
biphenyls (PBB)
Polybrominated
diphenyl Ethers
(PBDE)
MAX V CPLD development board X* 0 0 0 0 0
Type A-B USB cable 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.