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dc1922af
DEMO MANUAL DC1922A
For USE with a DUST Networks MOTE demo board:
15. Connector J1 is designed to interface with a Dust
Networks Mote demo board. Consult the Dust
documentation for optimal V
OUT
regulation setting.
In general the Dust Networks Mote will operate with
V
OUT
set to 3.3V. However, care should be taken to
not overvoltage the Mote. Newer Motes may require
a different V
OUT
. The DC1922A demo board can be
configured for different V
OUT
voltages by simply
changing R2.
16. The DC1922A demo board can be configured for
V
OUT
= 3.3V by changing resistor R2 to 1.1M for
R1 = 2M.
Quick start proceDure
17. Once the output voltage has been set to the proper
voltage and with the power supply OFF connect
DC1922A to the Dust Networks Mote demo board
using J1. See Figure 5 and 6 for the proper connec-
tions and orientation. Move jumper JP4 to V
OUT
.
18. Once the boards have been connected, turn on PS1
and increase the voltage to approximately 3V. V
OUT
should now be in regulation. V
IN
can now be varied
over the operating range and V
OUT
should remain in
regulation.
GND
VIN
Figure 3. Proper Measurement Equipment Setup
Figure 4. Measuring Input or Output Ripple
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