Marvell International Limited

Project Ft, Inc.

Marvellworld Trade Ltd.

Ethertronics, Inc.

Other

Marvell World Trade International

Farbod Aram

Sehat Sutardja

Pantas Sutardja

Arshan Aga

Leechung Yiu

Sehat Sutardia

An active device and circuits utilized therewith are disclosed. In an aspect, the active device comprises an n-type transistor having a drain, gate and bulk and a p-type transistor having a drain, gate and bulk. The n-type transistor and the p-type transistor include a common source. The device includes a first capacitor coupled between the gate of the n-type transistor and the gate of the p-type transistor, a second capacitor coupled between the drain of the n-type transistor and the drain of p-type transistor and a third capacitor coupled between the bulk of the n-type transistor and the bulk of p-type transistor. The active device has a high breakdown voltage, is memory less and traps even harmonic signals.

Active device which has a high breakdown voltage, is memory-less, traps even harmonic signals and circuits used therewith

An active device and circuits utilized therewith are disclosed. In an aspect, the active device comprises an n-type transistor having a drain, gate and bulk and a p-type transistor having a drain, gate and bulk. The n-type transistor and the p-type transistor include a common source. The device includes a first capacitor coupled between the gate of the n-type transistor and the gale of the p-type transistor, a second capacitor coupled between the drain of the n-type transistor and the drain of p-type transistor and a third capacitor coupled between the bulk of the n-type transistor and the bulk of p-type transistor. The active device has a high breakdown voltage, is memory less and traps even harmonic signals.

Active device and circuits used therewith

A voltage controlled oscillator (VCO) is disclosed. The VCO includes an active device. The VCO comprises an active device, wherein the active device further includes an n-type transistor having a drain, gate and bulk; a p-type transistor having a drain, gate and bulk. The n-type transistor and the p-type transistor share a common source. The active device further includes a first capacitor coupled between the gate of n-type transistor and the gate of p-type transistor; a second capacitor coupled between the drain of the n-type transistor and the drain of p-type transistor; and a third capacitor coupled between the bulk of n-type transistor and the bulk of p-type transistor. The VCO includes a tuning block coupled to the common source to form a common gate amplifier and at least one tuning element coupled to the active device for changing the overall capacitance of the VCO.

Memoryless common-mode insensitive and low pulling VCO

An amplifier including first, second, third, and fourth switches, each having first and second terminals. The first terminal of each switch communicates with a respective load. The second terminal of the first switch communicates with the second terminal of the second switch. The second terminal of the third switch communicates with the second terminal of the fourth switch. A first terminal of a first capacitance communicates with the second terminals of the first and second switches. A first terminal of a second capacitance communicates with the second terminals of the third and fourth switches. A first inductance communicates with second terminals of the first and second capacitances.

Class AB amplifiers

An amplifier circuit including an amplifier, a first feedback path, and a second feedback path. The amplifier is configured to amplify an input signal in accordance with a gain. The first feedback path includes a first capacitance, and responsive to the input signal being within in a first frequency range, the first feedback path configured to provide feedback from the output of the amplifier to an inverting input of the amplifier. The second feedback path includes a first resistance connected in series with a second capacitance, and responsive to the input signal being within in a second frequency range, the second feedback path is configured to provide feedback from the output of the amplifier to the inverting input of the amplifier. The second frequency range is less than the first frequency range, and the gain of the amplifier levels off according to a value of the second capacitance.

Method and apparatus for amplifying an input signal

An amplifier includes a first switch and a second switch each having a first terminal and a second terminal. The first terminals of the first and second switches respectively communicate with a first tank circuit and a second tank circuit. The second terminal of the second switch communicates with the second terminal of the first switch. A first capacitance having a first terminal connected directly to (i) the second terminal of the first switch and (ii) the second terminal of the second switch. A second terminal of the first capacitance is connected directly to a first input voltage of the amplifier. A first load is connected across (i) the first terminal of the first switch and (ii) the first terminal of the second switch. The amplifier generates a first output across the first load.

A class AB amplifier includes a first inductor having a first terminal in communication with a voltage source terminal. A first transistor has a drain terminal in communication with a second terminal of the first inductor. A second transistor has a source terminal in communication with a source terminal of the first transistor. A second inductor has a first terminal in communication with a drain terminal of the second transistor and a second terminal in communication with a reference potential. The drain terminals of the first transistor and the second transistor are capacitively coupled together.

An amplifier circuit includes an amplifier including an inverting input that communicates with an input signal, a non-inverting input, and an output. A first feedback path communicates with the inverting input and the output of the amplifier. A second feedback path communicates with the inverting input and the output of the amplifier. The first feedback path provides feedback at a lower frequency than the second feedback path. A first resistance has one end that communicates with the output of the amplifier. A first capacitance has one end that communicates with an opposite end of the load resistance. A second resistance has one end that communicates with the inverting input and an opposite end that communicates with the opposite end of the first resistance.

Amplifier with output filtering

What is described herein is a technique that includes a clock generator configured to generate a clock signal having a frequency of |f+f|. The technique further includes a mixer configured to input (1) an input signal that includes a desired signal at the frequency fand (2) the clock signal and generate a mixed signal using the input signal and the clock signal. A filter, having a bandpass region that includes the frequency f, is configured to input the mixed signal and generate a filtered signal based at least in part on the bandpass region.

Feedback LNA with image filtering

A current to voltage converter which includes a common gate transconductance element having at least one input and one output. The current to voltage converter further includes a common source transconductance element having at least one input and one output, where the common source transconductance element is connected to the common gate transconductance element. The current to voltage converter further includes a feedback circuit including a resistor, where the feedback circuit connects any input having a polarity to any output having an opposite polarity.

Current to voltage converter

A low noise amplifier (LNA) includes an LNA input that receives a signal from an antenna. The LNA also includes an internal amplifier with an input that is coupled to the LNA input, as well as an internal filter with an input coupled to the output of the internal amplifier and an output coupled to the input of the internal amplifier. The coupling of the output of the internal filter to the input of the internal amplifier provides feedback to the input of the internal amplifier. The internal filter is configured to pass signals within a frequency range through to the output of the internal filter.

Broadband LNA with filter

A voltage controlled oscillator (VCO) includes a first and a second n-type transistor, a first and a second p-type transistor, a first and second capacitive element, a bridge connecting (1) the ground-facing connection of the first n-type transistor and power-facing connection of the first p-type transistor to (2) the ground-facing connection of the second n-type transistor and power-facing connection of the second p-type transistor, a first inductive element, a first capacitor bank, a second inductive element, and a second capacitor bank.

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Los Altos Hills, CA, United States of America

Farbod Aram