SD188ES/SD188EM Demonstration Board User’s Manual
2-14
1.1
Power Supply
When used as a stand-alone board,
the SD188ES/SD188EM demonstration board
requires an input power supply of 5.0 V DC, ±5%, 250 mA.
When adding components to the SD188ES/SD188EM demonstration board via the
expansion interface, additional power may be necessary.
The power supply connector is a 5.5-mm barrel connector where the center post
is V
CC
and the outer ring is GND, as shown in Figure 2-7.
Figure 2-7. Power Supply Polarity
CAUTION: Use the 5-V universal power supply included with
the kit. Using a 9-V supply will permanently damage the
board.
GND
+5V
POWER
!
frtbook : newch2 Page 14 Monday, June 2, 1997 3:37 PM
