Delta-Sigma Direct Digital Synthesizer

Award Information
Agency:
Department of Defense
Branch:
Navy
Amount:
$749,988.00
Award Year:
2002
Program:
SBIR
Phase:
Phase II
Contract:
N00178-02-C-3079
Agency Tracking Number:
N001-1526
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Q-Dot, Inc.
1069 Elkton Drive, Colorado Springs, CO, 80907
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
089808760
Principal Investigator
 Michael Harrell
 Manager, RF and Optical S
 (719) 590-1112
 harrell@qdot.com
Business Contact
 Thomas Linnenbrink
Title: President & Technical Dir
Phone: (719) 590-1112
Email: toml@qdot.com
Research Institution
N/A
Abstract
Q-DOT proposes to develop a monolithic, Delta-Sigma Direct Digital Synthesizer (DDS) suitable for use in a multi-function phased array antenna systems (e.g., Digital Array Radar (DAR)). Its wide bandwidth (600 MHz) enables the DDS to produce a variety ofsignals including the chirp waveforms for radar. The single-bit, delta-sigma architecture offers high purity (-150 dBc/Hz), low in-band spurious content (100 dB SFDR) signals on one integrated circuit realized in IBM's SiGe BiCMOS process. In addition,this sophisticated DDS will support beamforming operations (i.e., time delay, phase shift, amplitude weighting). Its small size, low power dissipation, and low cost make the Delta-Sigma DDS attractive for integration into advanced T/R modules. Under theproposed Phase II Base effort, Q-DOT will develop a monolithic Delta-Sigma DAC IC realized with SiGe BiCMOS technology. In the Phase II Option, the Delta-Sigma DAC integrated IC will be integrated with commercial-off-the-shelf (COTS) components to form astored-waveform, Delta-Sigma DDS Module. Q-DOT will work with the Navy to insert the Delta-Sigma DDS into advanced DAR during Phase III.

* information listed above is at the time of submission.

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