公开(公告)号：US09413375B2

公开(公告)日：2016-08-09

申请号：US14586866

申请日：2014-12-30

Applicant: Broadcom Corporation

Inventor： Xicheng Jiang ,  Xinyu Yu ,  Fang Lin ,  Yee Ling Cheung ,  Michael Inerfield

IPC: H04B1/38 ,  H04B1/40 ,  H03M1/18 ,  H04B1/00 ,  H04B1/16 ,  H03M1/66 ,  H04M1/02

CPC classification number: H03M1/185 ,  H03M1/66 ,  H04B1/0003 ,  H04B1/1646 ,  H04B1/40 ,  H04M1/0202

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.

Abstract translation: CMOS模拟和音频前端电路包括增强的模数转换器（ADC），其实现期望的信噪比失真（SNDR）和模拟前端发送（TX）数字 - 模数转换器（DAC）。 增强型ADC包括耦合到前馈环路的改进的单个运算放大器，可以显着降低增强型ADC的信号传递函数（STF）峰值。 CMOS模拟和音频前端电路与基带处理器集成在一起。