A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters

Shahin Mehdizad Taleie; Han Yongping; Tino Copani; Bertan Bakkaloglu; Sayfe Kiaei

doi:10.1109/RFIC.2008.4561408

A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters

Shahin Mehdizad Taleie, Han Yongping, Tino Copani, Bertan Bakkaloglu, Sayfe Kiaei

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

13 Scopus citations

Abstract

A digital IF to RF converter architecture with an RF VGA targeted for WCDMA transmitters is presented. The RFDAC consists of a 1.5-bits current steering DAC with an embedded semi-digital FIR filter and a mixer with an LC load. The VGA controls the output power in 10dB steps. The prototype is fabricated in 0.18μm CMOS technology and achieves 0dBm output power at 2GHz and 33dB image rejection. The measured rms EVM and ACPR show the system fulfills the standard specifications for the WCDMA. The chip draws 123.9mA from 1.8V supply. The die area is 0.8 × 1.6 mm².

Original language	English (US)
Title of host publication	Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008
Pages	157-160
Number of pages	4
DOIs	https://doi.org/10.1109/RFIC.2008.4561408
State	Published - Sep 22 2008
Event	2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 - Atlanta, GA, United States Duration: Jun 15 2008 → Jun 17 2008

Publication series

Name	Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
ISSN (Print)	1529-2517

Other

Other	2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008
Country/Territory	United States
City	Atlanta, GA
Period	6/15/08 → 6/17/08

Keywords

CMOS
Digital to analog converters
Linearity
Transmitter
VGA
WCDMA

ASJC Scopus subject areas

Engineering(all)

Access to Document

10.1109/RFIC.2008.4561408

Cite this

Taleie, S. M., Yongping, H., Copani, T., Bakkaloglu, B., & Kiaei, S. (2008). A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters. In Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008 (pp. 157-160). [4561408] (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). https://doi.org/10.1109/RFIC.2008.4561408

A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters. / Taleie, Shahin Mehdizad; Yongping, Han; Copani, Tino et al.

Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008. 2008. p. 157-160 4561408 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Taleie, SM, Yongping, H, Copani, T, Bakkaloglu, B & Kiaei, S 2008, A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters. in Proceedings of the 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008., 4561408, Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, pp. 157-160, 2008 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2008, Atlanta, GA, United States, 6/15/08. https://doi.org/10.1109/RFIC.2008.4561408

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abstract = "A digital IF to RF converter architecture with an RF VGA targeted for WCDMA transmitters is presented. The RFDAC consists of a 1.5-bits current steering DAC with an embedded semi-digital FIR filter and a mixer with an LC load. The VGA controls the output power in 10dB steps. The prototype is fabricated in 0.18μm CMOS technology and achieves 0dBm output power at 2GHz and 33dB image rejection. The measured rms EVM and ACPR show the system fulfills the standard specifications for the WCDMA. The chip draws 123.9mA from 1.8V supply. The die area is 0.8 × 1.6 mm2.",

keywords = "CMOS, Digital to analog converters, Linearity, Transmitter, VGA, WCDMA",

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AU - Kiaei, Sayfe

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A 0.18μm CMOS fully integrated RFDAC and VGA for WCDMA transmitters

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