Invention Grant
US08299870B2 Programmable gain attenuator with a wide attenuation range and a fine attenuation step size
有权
可编程增益衰减器，具有较宽的衰减范围和较好的衰减步长
- Patent Title: Programmable gain attenuator with a wide attenuation range and a fine attenuation step size
- Patent Title (中): 可编程增益衰减器，具有较宽的衰减范围和较好的衰减步长
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Application No.: US12689549Application Date: 2010-01-19
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Publication No.: US08299870B2Publication Date: 2012-10-30
- Inventor: Tao Wu , Ramon Gomez
- Applicant: Tao Wu , Ramon Gomez
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H01P1/22
- IPC: H01P1/22 ; H03G3/20
Abstract:
A programmable gain attenuator (PGA) configured to receive a signal at an input and provide an attenuated version of the signal at an output is provided herein. The PGA includes a resistor coupled between a first tap and a second tap, where the first tap is coupled to the input of the PGA. The PGA further includes two sets of switches. The first set of switches is coupled in parallel between the first tap and the output, and the second set of switches is coupled in parallel between the second tap and the output. The attenuation setting of the programmable gain attenuator can be determined by controlling each set of switches.
Public/Granted literature
- US20110140812A1 Programmable Gain Attenuator With A Wide Attenuation Range And A Fine Attenuation Step Size Public/Granted day:2011-06-16
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