Atmel STK525, Руководство пользователя по оборудованию

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Using the STK525
STK525 Hardware User Guide 2-7
7608A–AVR–04/06
2.2 Power Supply
The on-board power supply circuitry allows various power supply configurations.
2.2.1 Power Supply Sources
The power supply source can come from three different
(3)
and exclusive sources:
USB connector,
JACK PWR connector (J6, See Figure 2-2),
STK500
USB powered: When used as a USB device bus powered application, the STK525 can be powered via
the USB VBUS power supply line.
JACK PWR connector: – Need of a male JACK outlet,
– Input supply from 9 up to 15V
(1)
DC,
– No specific polarization
(2)
is required.
Figure 2-2 . JACK PWR Connector (J6)
Figure 2-3 . Male JACK Outlet and Wires
STK500 Powered: (c.f.
“STK500 Resources” on page 19
).
Notes: 1. 15V is the maximum level limitation of an unidirectional transit diode.
2. There is a diode (bridge) voltage level between the negative output of the power
supply and the STK525 “GND”. This could introduce some gap of voltage during
measurement and instrumentation.
3. Caution: Do not mount more than one power supply source on STK525.
+
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