A TX VCO for WCDMA/EDGE in 90 nm RF CMOS
(2011) In IEEE Journal of Solid-State Circuits 46(7). p.1618-1626- Abstract
- A VCO is implemented in an RF 90 nm CMOS process and covers the frequency range 2.55-4.08 GHz. Drawing 19 mA from 1.2 V, the phase noise at 20 MHz frequency offset from a 3.7 GHz carrier is -156 dBc/Hz, meeting the phase noise requirement for GSM/EDGE and SAW-less WCDMA transmitter after frequency division by 2 or by 4. A second version of the VCO covers an additional 4.90-5.75 GHz range, at the expense of a higher phase noise in the added band. In this way, all currently operational WCDMA/EDGE bands can be synthesized by a single VCO working at the double or quadruple of the desired band. A technique for shortening the transient response of the VCO during frequency tuning is also presented.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2042325
- author
- Andreani, Pietro LU ; Kozmin, Kirill ; Sandrup, Per ; Nilsson, Magnus and Mattsson, Thomas
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Duplex frequency, EDGE, phase noise, radio frequency integrated, circuits, tuning range, voltage controlled oscillators, WCDMA
- in
- IEEE Journal of Solid-State Circuits
- volume
- 46
- issue
- 7
- pages
- 1618 - 1626
- publisher
- IEEE - Institute of Electrical and Electronics Engineers Inc.
- external identifiers
-
- wos:000292102400011
- scopus:79959717280
- ISSN
- 0018-9200
- DOI
- 10.1109/JSSC.2011.2144030
- language
- English
- LU publication?
- yes
- id
- 0afbcf64-c2c8-4233-833e-c63c9946cd66 (old id 2042325)
- date added to LUP
- 2016-04-01 13:41:47
- date last changed
- 2022-04-06 06:22:28
@article{0afbcf64-c2c8-4233-833e-c63c9946cd66, abstract = {{A VCO is implemented in an RF 90 nm CMOS process and covers the frequency range 2.55-4.08 GHz. Drawing 19 mA from 1.2 V, the phase noise at 20 MHz frequency offset from a 3.7 GHz carrier is -156 dBc/Hz, meeting the phase noise requirement for GSM/EDGE and SAW-less WCDMA transmitter after frequency division by 2 or by 4. A second version of the VCO covers an additional 4.90-5.75 GHz range, at the expense of a higher phase noise in the added band. In this way, all currently operational WCDMA/EDGE bands can be synthesized by a single VCO working at the double or quadruple of the desired band. A technique for shortening the transient response of the VCO during frequency tuning is also presented.}}, author = {{Andreani, Pietro and Kozmin, Kirill and Sandrup, Per and Nilsson, Magnus and Mattsson, Thomas}}, issn = {{0018-9200}}, keywords = {{Duplex frequency; EDGE; phase noise; radio frequency integrated; circuits; tuning range; voltage controlled oscillators; WCDMA}}, language = {{eng}}, number = {{7}}, pages = {{1618--1626}}, publisher = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}}, series = {{IEEE Journal of Solid-State Circuits}}, title = {{A TX VCO for WCDMA/EDGE in 90 nm RF CMOS}}, url = {{http://dx.doi.org/10.1109/JSSC.2011.2144030}}, doi = {{10.1109/JSSC.2011.2144030}}, volume = {{46}}, year = {{2011}}, }