J13
POWER
SUPPLY
CONFIG
J12
WALL SUPPLY CONNECTION
J2
AC ADAPTER INPUT
J14
POWER
INPUT
+10V
-10V
ADS1282EVM-PDK Kit Operation
9.3
Connecting the Power Supply
The ADS1282EVM-PDK requires both a +5V supply and a external supply (
±
10V to
±
15V) to operate. The
+5V supply can be provided by either the +6V wall supply (included with the EVM-PDK) or an additional
external supply.
When the MMB0 DSP is powered properly, LED D2 glows green. The green light indicates that the 3.3V
supply for the MMB0 is operating properly. (It does not indicate that the EVM power supplies are
operating properly.)
9.3.1
Using the +6V Wall Supply for +5V
An ac wall supply can be connected to barrel jack J2 on the MMB0 to supply the +5V required for
operation. J2 is located next to the USB connector. The wall supply must output 6V to 7V dc. The
connector must be sleeve-negative, tip-positive. It should have a current rating of at least 2A. The wall
supply included in the EVM-PDK will provide the necessary voltage and current to the EVM.
Jumper J12 on the MMB0 connects a wall-mounted power supply to the board. To use the wall-mount
supply, J12 must be shorted.
illustrates how to connect an ac adapter to the MMB0.
Figure 7. Using the +6V Wall Supply for +5V
11
SBAU144C
–
March 2009
–
Revised May 2011
ADS1282EVM and ADS1282EVM-PDK User
'
s Guide
Copyright
©
2009
–
2011, Texas Instruments Incorporated