By Topic

A periodical frequency synthesizer for a 2.4-GHz fast frequency hopping transceiver

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

2 Author(s)
R. Uusikartano ; Digital & Comput. Syst. Lab., Tampere Univ. of Technol., Finland ; J. Niittylahti

In this paper, a compact architecture of a digital frequency synthesizer for a 2.4-GHz fast frequency hopping radio modem is presented. The synthesizer is designed for generating 12-bit quadrature carrier signals from 50 to 90 MHz in 500 kHz steps. The phase-to-amplitude conversion in the synthesizer is performed with a highly compressed look-up table (LUT). The read-only memory compression is based on the property that only a limited set of discrete frequencies is needed. Simulation and synthesis results for a VHDL-implementation of the architecture are given. In addition, the proposed architecture is compared to a traditional look-up based direct digital frequency synthesizer with similar performance. Layouts were generated for both designs using a 3.3-V 4-metal 0.35-μm n-well standard cell CMOS technology. The proposed synthesizer was found to be 59% smaller in area than the reference design

Published in:

IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing  (Volume:48 ,  Issue: 10 )