Receiver circuit, particularly for mobile radio

Details Receiver circuit, particularly for mobile radio Receiver circuit, particularly for mobile radio

2006-10-24

2006-10-24

Moe, Aung (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

C455S337000, C341S143000

Reexamination Certificate

active

07127221

ABSTRACT:
In a receiver circuit for demodulating a high-frequency signal, a limiting amplifier stage with a downstream sigma-delta converter is connected in series with a mixer stage that transforms a high-frequency signal that is supplied at its input into an intermediate-frequency signal. The intermediate-frequency signal at the output of the limiting amplifier stage is value-discrete and time-continuous. The described receiver architecture has a high sensitivity, is substantially independent of production tolerances, and occupies a small area; therefore, it is particularly suitable for mobile radio applications.

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