A 28 nm analog and audio mixed-signal front end for 4G/LTE Cellular System-on-Chip

Author

Xicheng Jiang ; Xinyu Yu ; Fang Lin ; Cheung, Felix ; Inerfield, Mike ; Li, Kaicheng ; Kamath, Anant ; Mehta, Harsham ; Jingbo Duan ; Jing Yang ; Krishnamurthy, Gautham ; Ranganathan, Sumant ; Cheung, Darwin ; Damaraju, Naga Radha Krishna ; Jianlong Chen

Author_Institution

Broadcom Corp., Irvine, CA, USA

fYear

2014

fDate

22-26 Sept. 2014

Firstpage

471

Lastpage

474

Abstract

A 28 nm CMOS mixed-signal front end is integrated with a multicore baseband processing platform for GSM /EDGE/WCDMA /HSPA /LTE /Multimedia applications. The AFE path includes an enhanced continuous-time ADC that achieves 73 dB SNDR at 9 MHz mode. AFE TX features a push-pull DAC with 13-bit linearity and 8.7 nV/sqrtHz noise density at 30 MHz. The high-fidelity audio playback and capture paths achieve 110 dB and 92 dB SNR, respectively.

Keywords

Long Term Evolution; audio signal processing; cellular radio; system-on-chip; 4G/LTE cellular system-on-chip; CMOS mixed signal front; GSM -EDGE-WCDMA -HSPA -LTE -Multimedia applications; analog mixed signal front end; audio mixed signal front end; audio playback; multicore baseband processing platform; Baseband; Finite impulse response filters; Headphones; Long Term Evolution; Noise; Sigma-delta modulation; 4G; ADC; Audio; DAC; LTE Analog Front-end; baseband; cellular; system-on-chip;

fLanguage

English

Publisher

ieee

Conference_Titel

European Solid State Circuits Conference (ESSCIRC), ESSCIRC 2014 - 40th

Conference_Location

Venice Lido

ISSN

1930-8833

Print_ISBN

978-1-4799-5694-4

Type

conf

DOI

10.1109/ESSCIRC.2014.6942124

Filename

6942124