09024700 is referenced by 20 patents and cites 524 patents.

A method and apparatus for use in a digitally tuning a capacitor in an integrated circuit device is described. A Digitally Tuned Capacitor DTC is described which facilitates digitally controlling capacitance applied between a first and second terminal. In some embodiments, the first terminal comprises an RF+ terminal and the second terminal comprises an RF− terminal. In accordance with some embodiments, the DTCs comprise a plurality of sub-circuits ordered in significance from least significant bit (LSB) to most significant bit (MSB) sub-circuits, wherein the plurality of significant bit sub-circuits are coupled together in parallel, and wherein each sub-circuit has a first node coupled to the first RF terminal, and a second node coupled to the second RF terminal. The DTCs further include an input means for receiving a digital control word, wherein the digital control word comprises bits that are similarly ordered in significance from an LSB to an MSB.

Title
Method and apparatus for use in digitally tuning a capacitor in an integrated circuit device
Application Number
12/735954
Publication Number
9024700 (B2)
Application Date
March 2, 2009
Publication Date
May 5, 2015
Inventor
Tero Tapio Ranta
San Diego
CA, US
Agent
Martin J Jaquez Esq
Jaquez Land Richman
Assignee
Peregrine Semiconductor Corporation
CA, US
IPC
H03M 1/80
H03K 17/687
H03M 1/10
H03K 17/16
H01G 7/00
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