Transimpedance amplifier (TIA) with tunable input resistance

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United States of America Patent

PATENT NO 11791856
APP PUB NO 20230019152A1
SERIAL NO

17945226

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Abstract

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An electronic device may include wireless circuitry with a baseband processor, a transceiver, and an antenna. The transceiver may include a mixer that outputs signals to a transimpedance amplifier. The mixer has an output impedance that varies depending on the frequency of operation. An adjustable resistance can be coupled to the input of the transimpedance amplifier. A control circuit can tune the adjustable resistance to compensate for changes in the output impedance of the mixer as the transceiver operates across a wide range of frequencies.

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Patent Owner(s)

Patent OwnerAddress
APPLE INCCALIFORNIA USA CALIFORNIA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mrugalla, Florian Munich, DE 8 7
Woo, Sang Hyun Austin, US 32 88

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