A Filtering Delta Sigma ADC for LTE and Beyond

Andersson, MattiasLund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH (author)

Abstract in UndeterminedThis paper presents a filtering ADC for the LTE communication standard, where a second-order Delta-Sigma modulator (DSM) is incorporated into the third-order Chebychev channel-select filter (CSF) of the radio receiver. The CSF introduces an additional third-order suppression of both thermal and quantization DSM noise, while the CSF transfer function is maintained. A design method for the filtering ADC accounting for unavoidable DSM-DAC delays is developed and experimentally demonstrated. The 65 nm CMOS prototype is clocked at 576/288 MHz with an 18.5/9.0 MHz LTE bandwidth, has an in-band gain of 26 dB, an SNDR of 56.4/58.1 dB, an input-referred noise of 5 nV/root Hz, and an out-of-band (half-duplex) IIP3 of 20/12 dBV(rms), with a power consumption of 7.9/5.4 mW and an overall state-of-the art performance.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
channel-select filter
A/D converter
continuous-time
Delta-Sigma
modulator (DSM)
filtering A/D converter
low-pass filter
STF

Andersson, MartinEricsson AB(Swepub:lu)es-man (author)
Sundström, LarsEricsson AB (author)
Mattisson, SvenEricsson AB (author)
Andreani, PietroLund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tde-pan (author)
Institutionen för elektro- och informationsteknikInstitutioner vid LTH (creator_code:org_t)

By the author/editor: Andersson, Matti ...; Andersson, Marti ...; Sundström, Lars; Mattisson, Sven; Andreani, Pietro

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