Invention Grant
US09413375B2 Analog and audio mixed-signal front end for 4G/LTE cellular system-on-chip
有权
用于4G / LTE蜂窝系统芯片的模拟和音频混合信号前端
- Patent Title: Analog and audio mixed-signal front end for 4G/LTE cellular system-on-chip
- Patent Title (中): 用于4G / LTE蜂窝系统芯片的模拟和音频混合信号前端
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Application No.: US14586866Application Date: 2014-12-30
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Publication No.: US09413375B2Publication Date: 2016-08-09
- Inventor: Xicheng Jiang , Xinyu Yu , Fang Lin , Yee Ling Cheung , Michael Inerfield
- Applicant: Broadcom Corporation
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McDermott Will & Emery LLP
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04B1/40 ; H03M1/18 ; H04B1/00 ; H04B1/16 ; H03M1/66 ; H04M1/02
Abstract:
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.
Public/Granted literature
- US20150194979A1 ANALOG AND AUDIO MIXED-SIGNAL FRONT END FOR 4G/LTE CELLULAR SYSTEM-ON-CHIP Public/Granted day:2015-07-09
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