Wireless Output Chip With Power Detector And Related Manufacturing Method
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United States of America Patent
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Issued Date -
Jun 16, 2005
app pub date -
Jun 22, 2004
filing date -
Dec 16, 2003
priority date (Note) -
Abandoned
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Abstract
Wireless output chip with a power detector and related manufacturing method. A BiCMOS process is used to integrate a power amplifier and a power detector, which detects power outputted by the power amplifier, into one chip. The power amplifier including bipolar junction transistors is formed by using BJT forming procedures in the BiCMOS process. The power detector includes a charging unit of a capacitor, a controlled current source and a reference current source constructed by metal-oxide-semiconductor transistors formed by MOS forming procedures in the BiCMOS process. Thus, the power detector and the power amplifier can be integrated into one chip using the low-cost BiCMOS process.
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