Mixer circuit configuration

Details Mixer circuit configuration Mixer circuit configuration

2005-05-10

2005-05-10

Kincaid, Lester G. (Department: 2682)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S315000, C455S314000, C455S319000, C455S326000, C455S333000, C327S113000, C327S358000, C327S359000, C327S411000

Reexamination Certificate

active

06892061

ABSTRACT:
A circuit configuration for mixing a differential desired signal with a differential local oscillator signal includes two difference amplifiers which are controllable on the input side by the desired signal and cross-coupled on the output side. Currents flowing through the difference amplifiers are switched by the components of the local oscillator signal in alternation. The circuit makes a lower supply voltage possible, given the presence of only two transistor levels.

REFERENCES:
patent: 5570056 (1996-10-01), Groe
patent: 5933771 (1999-08-01), Tiller et al.
patent: 6026286 (2000-02-01), Long
patent: 37 42 537 (1988-07-01), None
patent: 41 14 943 (1991-11-01), None
patent: 42 05 486 (1992-12-01), None

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