Nxp B.v.

Nxp Usa, Inc.

Stephane Damien Thuriés

Pierre Pascal Savary

Didier Salle

Erik Olieman

Achal Venkatesh

Harish Nandagopal

Rajesh Prabhakar Shamala

A device includes a filter circuit having both a transformer and a notch filter. The notch filter is formed via capacitive cross-coupling of windings of the transformer. The transformer includes a first winding with an input terminal and an output terminal and a second winding with an input terminal and an output terminal. The notch filter is formed by coupling a first capacitor between the input terminal of the first winding and the output terminal of the second winding, and by coupling a second capacitor between the output terminal of the first winding and the input terminal of the second winding.

Transformer filter with notch

An integrated circuit device includes an integrated circuit device die and a substrate. The integrated circuit device die includes a plurality of first contact pads. The first contact pads include a pair of first signal contact pads configured to provide a differential signal port of the integrated circuit device die. The differential signal port is configured to operate at a predetermined frequency. The substrate includes a plurality of second contact pads on a first surface of the substrate. The second contact pads are configured to be soldered to a printed circuit board, and include a pair of second signal contact pads. The integrated circuit device die is affixed to a second surface of the substrate via the first contact pads. The substrate includes a pair of circuit paths that each couple one of the first signal contact pads to an associated one of the second signal contact pads. The pair of circuit paths each have a length to provide a half-wave matching network at the predetermined frequency to match a single-ended signal at the pair of second signal pads to the differential signal port.

Integrated millimeter-wave dual-mode matching network

There is disclosed an amplifier circuit comprising: an amplifier having input and output terminals; a temperature dependent variable impedance unit comprising: a first terminal, a second terminal and a variable impedance unit control terminal; a transistor comprising a transistor control terminal coupled to the variable impedance unit control terminal; a first resistor coupled in parallel with the conduction channel; a capacitor coupled in series with the conduction channel between the conduction channel and one of: the first terminal; and the second terminal; and wherein: the first terminal is coupled to one of: the input terminal and the output terminal; the second terminal is for coupling to a reference node; and the variable impedance unit control terminal is configured to receive a control signal that is based on a measured temperature indicative of a temperature of the amplifier circuit and thereby provide a temperature dependent variable impedance for the amplifier circuit.

Amplifier circuit with temperature compensation

Amplifier circuit with an output limiter

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Saubens, France

Stephane Damien Thuriés