Transimpedance amplifier (TIA) with tunable input resistance

1004UN42 )2 Abstract of the Disclosure 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...

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Bibliographic Details
Main Authors Mrugalla, Florian, Woo, Sang Hyun
Format Patent
LanguageEnglish
Published 02.02.2023
Subjects
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Summary:1004UN42 )2 Abstract of the Disclosure 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 5 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. Cf 51 | Rf Cmix 54 LNA -PRi TIA t Rout 48 Rf Cmix 52 Cf
Bibliography:Application Number: AU20220205214