Analog and audio mixed-signal front end for 4G/LTE cellular system-on-chip

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United States of America Patent

PATENT NO 9413375
APP PUB NO 20150194979A1
SERIAL NO

14586866

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Abstract

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A CMOS analog and audio front-end circuit includes an enhanced analog-to-digital converter (ADC) that achieves a desired signal-to-noise-and-distortion (SNDR) and an analog-front-end transmit (TX) digital-to-analog converter (DAC). The enhanced ADC includes an improved single Op-Amp resonator coupled to a feed-forward loop and can substantially reduce signal transfer function (STF) peaking of the enhanced ADC. The CMOS analog and audio front-end circuit is integrated with a baseband processor.

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Patent Owner(s)

  • AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheung, Yee Ling Irvine, US 13 71
Inerfield, Michael Sunnyvale, US 2 19
Jiang, Xicheng Irvine, US 41 904
Lin, Fang Los Gatos, US 33 277
Yu, Xinyu San Jose, US 41 214

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