A 375 mW Multimode DAC-Based Transmitter With 2.2 GHz Signal Bandwidth and In-Band IM3 $ {<} {-}$58 dBc in 40 nm CMOS

Autor:	D. Guermandi, J. van der Tang, Xiaodong Liu, Hua-Feng Chen, Han Yan, F.M.L. van der Goes, Klaas Bult, Erol Arslan, Silvian Spiridon
Rok vydání:	2013
Předmět:	Engineering Multi-mode optical fiber business.industry Transmitter Bandwidth (signal processing) Electrical engineering Feed forward Linearity dBc CMOS Electronic engineering Electrical and Electronic Engineering Wideband business
Zdroj:	IEEE Journal of Solid-State Circuits. 48:1595-1604
ISSN:	1558-173X 0018-9200
DOI:	10.1109/jssc.2013.2253219
Popis:	A 40 nm CMOS digital-to-analog converter (DAC) based multimode transmitter (MMTX) is presented. The transmitter can be operated in either narrow- or wideband applications. It has a maximum 2.2 GHz signal bandwidth and exhibits an in-band IM3 of less than - 58 dBc. The MMTX consists of a current-steering DAC with digital sinc equalization and rolloff compensation. By implementing high-speed, feed-forward pipelined digital logic and a distributed decoder, the DAC sampling rate extends to 5 GHz. A distributed regulator approach ensures preservation of the achieved wideband linearity in noisy embedded SoC environments. The MMTX can deliver up to +11 dBm of output power and exhibits 20 dB of analog power backoff with 1 dB steps and a precision better than ±0.1 dB. The MMTX consumes only 375 mW and occupies 1.65 mm2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6f09e90836347adcd93c454027009966 https://doi.org/10.1109/jssc.2013.2253219 Zobrazit plný text záznamu