- Patent Title: Techniques for enhancing spurious free dynamic range performance
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Application No.: US14631982Application Date: 2015-02-26
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Publication No.: US09461636B2Publication Date: 2016-10-04
- Inventor: Robert Ensinger , David M. Gillespie
- Applicant: BAE Systems Information and Electronic Systems Integration Inc.
- Applicant Address: US NH Nashua
- Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee: BAE Systems Information and Electronic Systems Integration Inc.
- Current Assignee Address: US NH Nashua
- Agent Daniel J. Long; Kimberly A. Peaslee
- Main IPC: H03K21/00
- IPC: H03K21/00 ; H03K5/1252 ; G06F1/10

Abstract:
Techniques and architecture are disclosed for improving spurious performance in a signal generator/system. The disclosed techniques/architecture can be used, for example, to enhance/improve the wideband and/or narrowband spurious free dynamic range (SFDR) between a given carrier signal and spurious signals. In some example instances, wideband and/or narrowband SFDR may be improved to about −40 dBc or better. In some other example instances, wideband and/or narrowband SFDR may be improved to about −70 dBc or better. The disclosed techniques/architecture can be implemented in a wide variety of signal generators/systems, such as a direct digital synthesizer (DDS)-based system, and over a wide range of input clock frequencies (e.g., in the range of about 10 MHz to 40 GHz, or higher).
Public/Granted literature
- US20150171846A1 TECHNIQUES FOR ENHANCING SPURIOUS FREE DYNAMIC RANGE PERFORMANCE Public/Granted day:2015-06-18
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