Broadcom Corporation

Luke Thomas Steigerwald

Lawrence M Burns

Chun-Ying Chen

Frank Carr

Myles H Wakayama

Young J Shin

James Y C Chang

Alexandre Rudolph Kral

Afshin Mellati

David S P Ho

Iconomos A Koullias

Dana Vincent Laub

Hsiang-Bin Lee

Ron Lipka

Patrick Pai

David SP Ho

Robert G Wiley

James YC Chang

Young Joon Shin

A direct conversion satellite tuner is fully integrated on a common substrate. The integrated tuner receives an RF signal having a plurality of channels and down-converts a selected channel directly to baseband for further processing. The integrated tuner includes on-chip local oscillator generation, tunable baseband filters, and DC Offset cancellation. The integrated tuner can be implemented in a completely differential I/Q configuration for improved electrical performance. The entire direct conversion satellite tuner can be fabricated on a single semiconductor substrate using standard CMOS processing, with minimal off-chip components. The tuner configuration described herein is not limited to processing TV signals, and can be utilized to down-convert other RF signals to an IF frequency or baseband.

Integrated direct conversion satellite tuner

Growing community of inventors

Sinking Spring, PA, United States of America

Luke Thomas Steigerwald