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AssigneeATMELGermany GmbH
InventorWolfram Kluge
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An integrated circuit arrangement is provided for converting a high-frequency bandpass signal to a low-frequency quadrature signal with a first in-phase component and a first quadrature-phase component, which has: an amplifier arrangement, which is designed to generate an amplified signal and has a first amplifier stage for amplifying the high-frequency bandpass signal, a mixer unit with a first mixer to provide the first in-phase component and a second mixer to provide the first quadrature-phase component, and a driver amplifier, which is designed to generate a local oscillator signal. According to the invention, between the amplifier arrangement and the mixer unit a polyphase filter is disposed, which converts the amplified signal to a complex-valued polyphase signal with a second in-phase component and a second quadrature phase component. Furthermore, according to the invention each mixer is connected to the driver amplifier, and the first mixer is designed to multiply the second in-phase component by the local oscillator signal, and the second mixer is designed to multiply the second quadrature-phase component by the local oscillator signal.
An integrated circuit arrangement for converting a high-frequency bandpass signal to a low-frequency quadrature signal with a first in-phase component and a first quadrature-phase component, the integrated circuit arrangement comprising:
A transmitting/receiving device for a data transmission system comprising:
A method for converting a high-frequency bandpass signal to a low-frequency quadrature signal with a first in-phase component and a first quadrature-phase component, the method comprising:
Dependencies are inferred from the claim text.