Mixer Biasing with Baseband Filter Common-Mode Voltage

An apparatus is disclosed for mixer biasing with baseband filter common-mode voltage. In an example aspect, the apparatus includes a mixer, a baseband filter, and a bias circuit. The mixer has a mixer transistor that is coupled to a bias node and a baseband node. The baseband filter is coupled to th...

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Bibliographische Detailangaben
Hauptverfasser:	ASURI, Bhushan Shanti, THIAGARAJAN, Krishnaswamy, MITTAL, Ayush, RANJAN, Mahim
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRONIC CIRCUITRY DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TOANOTHER ELECTRICITY
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Beschreibung
Zusammenfassung:	An apparatus is disclosed for mixer biasing with baseband filter common-mode voltage. In an example aspect, the apparatus includes a mixer, a baseband filter, and a bias circuit. The mixer has a mixer transistor that is coupled to a bias node and a baseband node. The baseband filter is coupled to the mixer via the baseband node. The baseband filter is configured to operate with a common-mode reference voltage that is associated with a common-mode voltage applied at the baseband node. The bias circuit is coupled to the baseband filter and the bias node. The bias circuit is configured to receive the common-mode reference voltage from the baseband filter and generate, at the bias node, a bias voltage for biasing the mixer transistor based on the common-mode reference voltage.