Texas Instruments ADS1178EVM, User Manual, Page: 17 / 52

9.2.1 About the MMB0
9.3 Connecting the Power Supply
9.3.1 Connecting an AC Adapter
J13
POWER
SUPPLY
CONFIG
J12
WALL SUPPLY CONNECTION
J2
AC ADAPTER INPUT
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ADS1278EVM-PDK Kit Operation
The MMB0 is a Modular EVM System motherboard. It is designed around the TMS320VC5507 , a DSP
with an onboard USB interface from Texas Instruments. The MMB0 also has 16MB of SDRAM installed.
The MMB0 is not sold as a DSP development board, and it is not available separately. TI cannot offer
support for the MMB0 except as part of an EVM kit. For schematics or other information about the MMB0,
contact Texas Instruments.
The ADS1278EVM-PDK can be operated with a un5V supply or a combination of +5V and bipolar
±
(10V to 15V) 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.)
An AC adapter can be connected to barrel jack J2 on the MMB0. J2 is located next to the USB connector.
The adapter must output 6V-7V dc. The connector must be sleeve-negative, tip-positive. It should have a
current rating of at least 2A.
Jumper J12 on the MMB0 connects a wall-mounted power supply to the board. To use the wall-mount
supply, J12 must be shorted.
Figure 10 illustrates how to connect an AC adapter to the MMB0.
Figure 10. Connecting an AC Adapter
SBAU129C – November 2007 – Revised July 2008 ADS1178EVM, ADS1278EVM, ADS1178EVM-PDK, and ADS1278EVM-PDK 17
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