By Topic

A direct conversion multi-band CDMA transmitter with single common resistive RF modulator and LO generation

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
F. Villain ; Philips Semicond., Caen, France ; O. Burg ; G. Herault

A highly integrated multi-frequency CDMA transmitter using a simplified architecture based on a single common RF modulator and LO generation is presented. This chip up converts directly the I/Q base band signal to RF in two stages and delivers the RF signal to the power amplifier. The chip provides more than 80dB power control range in both bands and it is designed to deliver +5.5dBm in CDMA mode in cellular band and +7dBm in CDMA mode in PCS band at 70 mA and 79 mA respectively at nominal supply and temperature. It also provides -51 dBc and -57 dBc ACPR for the low and high bands. The chip was implemented using the Philips 0.25 mum BICMOS Qubic4+ process

Published in:

Digest of Papers. 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

Date of Conference:

18-20 Jan. 2006