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SMM105/205/605/665
ADOC Tutorial and Performance
Summary
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TEST
EQUIPMENT
USED
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1.
Oscilloscope
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Tek
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TDS3014
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2.
Current Probe Amplifier
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Tek
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AM503B
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3.
Current Probe
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Tek
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A6312
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4.
Multimeter
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HP
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34401A
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5.
Function Generator
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HP
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33120A
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6.
Four SMM105 Eval Kits
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SMM105EV
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7.
SMM105 Windows GUI
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Version
1.1.0
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Test setup begins by programming the SMM105 using
Summit's Windows GUI software. Figure 4 displays
the SMM105 GUI opened to the ADOC tab. Here the LDO
Nominal, High and Low voltages are set. The Nominal
voltage is the steady state operating voltage, the
High and Low settings for voltage margining.
Selecting the 'Enable Control' engages the SMM105's
TRIM output to ADOC the LDO. Performance results
were taken with and without the SMM105 engaged to
the DC-DC converter and LDO. To Margin High or Low
select the choice from the 'Channel A' drop-down
menu (Figure 4) and click on the 'Write' button
below it to start the Margin event. Click the
'Read' button to ensure the output was
Margined.
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Figure
4: Setting the ADOC Enable Control and
Voltages. In order for the ADOC function
to operate, the "Enable Control box needs
to be checked. The box also needs to be
checked to Margin the supplies. The
SMM205, 605 and 665 have similar Windows
GUI functions.
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SUMMIT
Microelectronics, Inc. reserves the right
to make changes to the products contained
in this publication in order to improve
design, performance or reliability. SUMMIT
Microelectronics, Inc. assumes no
responsibility for the use of any circuits
described herein, conveys no license under
any patent or other right, and makes no
representation that the circuits are free
of patent infringement. Charts and
schedules contained herein reflect
representative operating parameters, and
may vary depending upon a user's specific
application. While the information in this
publication has been carefully checked,
SUMMIT Microelectronics, Inc. shall not be
liable for any damages arising as a result
of any error or omission.
SUMMIT Microelectronics, Inc. does not
recommend the use of any of its products
in life support or aviation applications
where the failure or malfunction of the
product can reasonably be expected to
cause any failure of either system or to
significantly affect their safety or
effectiveness. Products are not authorized
for use in such applications unless SUMMIT
Microelectronics, Inc. receives written
assurances, to its satisfaction, that: (a)
the risk of injury or damage has been
minimized; (b) the user assumes all such
risks; and (c) potential liability of
SUMMIT Microelectronics, Inc. is
adequately protected under the
circumstances.
Revision 1.0 - This document supersedes
all previous. Please check the Summit
Microelectronics, Inc. web site at
www.summitmicro.com
for updates.
I2C is a trademark of Philips
Corporation.
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Copyright
© 2003 SUMMIT MICROELECTRONICS, Inc.
Power Management for Communications™
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