The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 10, 2015
Filed:
Dec. 16, 2013
Peregrine Semiconductor Corporation, San Diego, CA (US);
Fleming Lam, San Diego, CA (US);
Peregrine Semiconductor Corporation, San Diego, CA (US);
Abstract
A method and circuit for significantly reducing positive switching transients (glitches) of digital step attenuators (DSA's) by controlling the timing of state transitions for individual attenuator stages within a DSA. Such control prevents the DSA output power from peaking during attenuation state transitions and ensures that any transient glitch during the transition results in reduced power at the DSA output. Attenuation stage timing delay can be implemented on an integrated circuit die or 'chip' for monolithic implementations of a DSA by adding circuitry which ensures that any attenuation state changes result in increased attenuation rather than decreased attenuation, thereby reducing or eliminating positive transient glitches at the DSA output.