Lantiq Deutschland Gmbh

Siemens Aktiengesellschaft

Infineon Technologies Ag

Thomas Eichler

Holger Wenske

Armin Hanneberg

David Herbison

Christoph Schwarzer

Dirk Scheideler

Peter Laaser

Thomas Blon

Marc Hesener

Mario Träber

Heinz Werker

Mark Hesener

Martin Gröpl

Mario Traber

According to one embodiment, a line driver circuit comprises a plurality of output stages each operable to produce an output signal and one or more pre-output stages operable to perform one or more common functions. The line driver circuit also comprises circuitry operable to selectively couple one or more of the output stages to the one or more pre-output stages based on a wireline communication technology implemented by the line driver circuit.

Line driver method and apparatus

In an embodiment, a circuit is disclosed comprising a circuit portion coupled to a terminal and a calibration circuit portion coupled to said terminal.

Circuit with calibration circuit portion

An integrated circuit includes an output terminal to be coupled to a light-emitting diode, an output circuit coupled to the output terminal, the output circuit being configured to supply an operating signal to the light-emitting diode, a measuring circuit coupled to the output terminal and a control circuit coupled to the measuring circuit. The measuring circuit is configured to sense on the output terminal a signal value outside an operating regime of the light-emitting diode, the signal value being a voltage below a forward voltage of the light-emitting diode or a current below a threshold current of the light-emitting diode. The control circuit is configured to configure at least one function of the integrated circuit when the signal value as sensed by the measuring circuit corresponds to a voltage below the forward voltage of the light-emitting diode or a current below the threshold current of the light-emitting diode.

Integrated circuit with a measuring circuit and method of configuring an integrated circuit with a measuring circuit

A circuit arrangement for the analogue suppression of echoes, as in particular can be used in a hybrid-circuit for DSL-transmission systems, comprises a replica () for emulating the behaviour of the transmission line (). In addition, a circuit () for emulating the behaviour of the transmitter () is provided, which comprises at least one lowpass (). Furthermore, a replica () for emulating the behaviour of bridge taps () can also be provided, which comprises at least one bandpass (). Additionally, a replica () for emulating the behaviour of the line driver () can also be provided.

Circuit arrangement for the analogue suppression of echoes

A phase-locked loop includes a switched phase detector, a loop filter and an oscillator connected in series, as well as a device for technology compensation, in particular a course control device. An operating point is adjusted during a starting phase of the phase-locked loop through the use of the course control device in such a way that the damping and natural frequency of the phase-locked loop is independent of fluctuations in technology parameters.

Phase-locked loop with course providing damping and natural frequency

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Unterhaching, Germany

Thomas Eichler