Hardware Description Cc2430Db; Powering Cc2430Db - Texas Instruments Chipcon CC2430DB User Manual

5 Hardware description CC2430DB

Joystick
CC2430
debug
DC jack
(Reverse)
USB
connector
Battery clip
(Reverse)
Low current
jumpers
Power switch S3
Pot.
Accelerometer

5.1 Powering CC2430DB

The CC2430DB can be powered in three different ways:
•
2.5 mm DC jack connector. This connector is placed under the board. The centre pin
is used for the positive voltage. A 4-10V DC power supply should be used. The
onboard voltage regulator supplies 3.3V to the board.
•
USB power. If the CC2430DB is connected to a USB socket on a PC, it will draw
power from the USB bus. The onboard voltage regulator supplies 3.3V to the board.
•
Battery power. The CC2430DB includes a battery clip for two AA type batteries
If several power sources are connected, the CC2430DB will be powered from the supply that
supplies the highest voltage. The USB MCU is only powered when USB or DC jack power is
used.
I/O connector A
USB MCU
debug
connector
EEPROM
Figure 1: CC2430DB overview
SWRU125
CC2430 Reset
LED
Light sensor
Button S1
CC2430
PCB
Antenna
Low current
jumpers
I/O connector B
USB MCU
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