Electric device, electric device testing apparatus, and electric device testing method thereof
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United States of America Patent
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app pub date -
Jan 22, 2001
filing date -
Jul 13, 1999
priority date (Note) -
Abandoned
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Abstract
An electric device 100 has a conversion unit 102, and a .SIGMA. .DELTA. modulator 106 which functions as a D/A converter is included therein. The electric device 100 inputs an indication signal 40 for requesting a shift to test mode. The electric device testing apparatus 10 has an analog test pattern generator 16 for generating a pattern for testing an analog unit 108 of the electric device 100. The pattern generated herein is a digital signal. Consequently, after it is converted to an analog signal by the .SIGMA. .DELTA. modulator 106, a testing process is performed.
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