All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise

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All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise. / Roverato, Enrico; Kosunen, Marko; Cornelissens, Koen; Vatti, Sofia; Stynen, Paul; Bertrand, Kaoutar; Korhonen, Teuvo; Samsom, Hans; Vandenameele, Patrick; Ryynanen, Jussi.

In: IEEE Journal of Solid-State Circuits, Vol. 52, No. 12, 21.11.2017, p. 3434-3445.

Research output: Contribution to journalArticle

Harvard

Roverato, E, Kosunen, M, Cornelissens, K, Vatti, S, Stynen, P, Bertrand, K, Korhonen, T, Samsom, H, Vandenameele, P & Ryynanen, J 2017, 'All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise', IEEE Journal of Solid-State Circuits, vol. 52, no. 12, pp. 3434-3445. https://doi.org/10.1109/JSSC.2017.2761781

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Author

Roverato, Enrico ; Kosunen, Marko ; Cornelissens, Koen ; Vatti, Sofia ; Stynen, Paul ; Bertrand, Kaoutar ; Korhonen, Teuvo ; Samsom, Hans ; Vandenameele, Patrick ; Ryynanen, Jussi. / All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise. In: IEEE Journal of Solid-State Circuits. 2017 ; Vol. 52, No. 12. pp. 3434-3445.

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@article{d3e0af56c92c4917804e64e95fa6c390,
title = "All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise",
abstract = "We present the first all-digital LTE transmitter (TX) using programmable digital attenuation of receive band (RX-band) noise. The system is architectured to fully exploit the speed and low cost of DSP logic in deep-submicrometer CMOS processes, without increasing at all the design effort of the RF circuitry. To achieve operation without surface acoustic wave filter, the TX uses digital bandpass delta-sigma modulation and mismatch-shaping to attenuate the DAC noise at a programmable duplex distance. These functions can be implemented entirely within DSP, thus taking advantage of the standard digital design methodology. Furthermore, the fully digital RX-band noise shaping significantly relaxes the performance requirements on the RF front-end. Therefore, 10 bits of resolution for the D/A conversion are sufficient to achieve -160 dBc/Hz out-of-band (OOB) noise, without need for digital predistortion, calibration, or bulky analog filters. The TX was fabricated in 28-nm CMOS, and occupies only 0.82 mmsuperscript2. Besides low OOB noise, our system also demonstrates state-of-art linearity performance, with measured CIM3/CIM5 below -67 dBc, and adjacent-channel leakage ratio of -61 dBc with LTE20 carrier. The circuit consumes 150 mW from 0.9-/1.5-V supplies at +3 dBm output power.",
keywords = "All-digital transmitter (TX), Attenuation, Baseband, delta-sigma, LTE, mismatch-shaping, Modulation, Noise shaping, Quantization (signal), Radio frequency, receive band (RX-band) noise, RF-DAC, Standards",
author = "Enrico Roverato and Marko Kosunen and Koen Cornelissens and Sofia Vatti and Paul Stynen and Kaoutar Bertrand and Teuvo Korhonen and Hans Samsom and Patrick Vandenameele and Jussi Ryynanen",
year = "2017",
month = "11",
day = "21",
doi = "10.1109/JSSC.2017.2761781",
language = "English",
volume = "52",
pages = "3434--3445",
journal = "IEEE Journal of Solid-State Circuits",
issn = "0018-9200",
publisher = "IEEE",
number = "12",

}

RIS - Download

TY - JOUR

T1 - All-Digital LTE SAW-Less Transmitter With DSP-Based Programming of RX-Band Noise

AU - Roverato, Enrico

AU - Kosunen, Marko

AU - Cornelissens, Koen

AU - Vatti, Sofia

AU - Stynen, Paul

AU - Bertrand, Kaoutar

AU - Korhonen, Teuvo

AU - Samsom, Hans

AU - Vandenameele, Patrick

AU - Ryynanen, Jussi

PY - 2017/11/21

Y1 - 2017/11/21

N2 - We present the first all-digital LTE transmitter (TX) using programmable digital attenuation of receive band (RX-band) noise. The system is architectured to fully exploit the speed and low cost of DSP logic in deep-submicrometer CMOS processes, without increasing at all the design effort of the RF circuitry. To achieve operation without surface acoustic wave filter, the TX uses digital bandpass delta-sigma modulation and mismatch-shaping to attenuate the DAC noise at a programmable duplex distance. These functions can be implemented entirely within DSP, thus taking advantage of the standard digital design methodology. Furthermore, the fully digital RX-band noise shaping significantly relaxes the performance requirements on the RF front-end. Therefore, 10 bits of resolution for the D/A conversion are sufficient to achieve -160 dBc/Hz out-of-band (OOB) noise, without need for digital predistortion, calibration, or bulky analog filters. The TX was fabricated in 28-nm CMOS, and occupies only 0.82 mmsuperscript2. Besides low OOB noise, our system also demonstrates state-of-art linearity performance, with measured CIM3/CIM5 below -67 dBc, and adjacent-channel leakage ratio of -61 dBc with LTE20 carrier. The circuit consumes 150 mW from 0.9-/1.5-V supplies at +3 dBm output power.

AB - We present the first all-digital LTE transmitter (TX) using programmable digital attenuation of receive band (RX-band) noise. The system is architectured to fully exploit the speed and low cost of DSP logic in deep-submicrometer CMOS processes, without increasing at all the design effort of the RF circuitry. To achieve operation without surface acoustic wave filter, the TX uses digital bandpass delta-sigma modulation and mismatch-shaping to attenuate the DAC noise at a programmable duplex distance. These functions can be implemented entirely within DSP, thus taking advantage of the standard digital design methodology. Furthermore, the fully digital RX-band noise shaping significantly relaxes the performance requirements on the RF front-end. Therefore, 10 bits of resolution for the D/A conversion are sufficient to achieve -160 dBc/Hz out-of-band (OOB) noise, without need for digital predistortion, calibration, or bulky analog filters. The TX was fabricated in 28-nm CMOS, and occupies only 0.82 mmsuperscript2. Besides low OOB noise, our system also demonstrates state-of-art linearity performance, with measured CIM3/CIM5 below -67 dBc, and adjacent-channel leakage ratio of -61 dBc with LTE20 carrier. The circuit consumes 150 mW from 0.9-/1.5-V supplies at +3 dBm output power.

KW - All-digital transmitter (TX)

KW - Attenuation

KW - Baseband

KW - delta-sigma

KW - LTE

KW - mismatch-shaping

KW - Modulation

KW - Noise shaping

KW - Quantization (signal)

KW - Radio frequency

KW - receive band (RX-band) noise

KW - RF-DAC

KW - Standards

UR - http://www.scopus.com/inward/record.url?scp=85033725844&partnerID=8YFLogxK

U2 - 10.1109/JSSC.2017.2761781

DO - 10.1109/JSSC.2017.2761781

M3 - Article

VL - 52

SP - 3434

EP - 3445

JO - IEEE Journal of Solid-State Circuits

JF - IEEE Journal of Solid-State Circuits

SN - 0018-9200

IS - 12

ER -

ID: 16211093