Rf Micro Devices, Inc.

Shayan Faravash

Matthew C Romney

Robert A Koupal

Nathaniel King, Jr

David A Schwan

Chee Kwang Quek

Chee Quang Quek

An integrated transceiver for wireless applications has both a frequency determining means and a power amplifier. A transmission filter suppresses unwanted spurious outputs in an integrated circuit before a power amplifier stage amplifies and transmits the desired signal. A differential to single ended converter is able to be implemented to further enhance efficiency.

Method and apparatus for the integration of a high efficiency power amplifier with an integrated transceiver for wireless communication

A phase locked loop and power amplifier are integrated on single chip. To eliminate cross-talk between the components, a frequency translation block is introduced to change the output frequency of the PLL. To isolate the components from unwanted feedback, a high isolation buffer is introduced between the components. To further isolate the components, the voltage supply domains for each component is physically separated. Each separate voltage supply domain can include a separate high isolation ring, separate voltage regulator, and separate bandgap reference.

Method and apparatus for integrating power amplifiers with phase locked loop in a single chip transceiver

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Cupertino, CA, United States of America

Shayan Faravash