University of Florida Research Foundation Inc

Monolithic Power Systems, Inc.

Qizhang Yin

Jeff Kotowski

William Richard Eisenstadt

An RF/Microwave on-chip signal source for testing an integrated circuit embedded in a substrate is provided. The signal source includes an on-chip antenna embedded in the substrate to receive a signal from a signal source external to the substrate. The signal source also includes a frequency divider circuit also embedded in the substrate. The frequency divider converts one or more frequencies of the signal into an operating frequency of the integrated circuit, the signal at the operating frequency of the integrated circuit defining an on-chip test signal. The signal source further includes one or more output buffers embedded in the substrate to provide a signal interface with the integrated circuit.

Wireless embedded test signal generation

The present disclosure provides a method and apparatus for high performance class D audio amplifier circuit that includes: a modulator circuit for receiving a PWM input signal and generating a control signal, a driver control circuit, a switching circuit, and a feedback circuit. The driver control circuit is adapted to generate a drive signal for the switching circuit. The driving signal provides compensation for noise and distortions in a PWM output signal at each cycle by selecting either a first pulse signal or a second pulse signal based on the information of the control signal.

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San Jose, CA, United States of America

Qizhang Yin