- 专利标题: Multi-input amplifier with programmable embedded attenuators
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申请号: US15690762申请日: 2017-08-30
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公开(公告)号: US10348262B2公开(公告)日: 2019-07-09
- 发明人: Junhyung Lee , Rimal Deep Singh , Johannes Jacobus Emile Maria Hageraats , Joshua Haeseok Cho , Bipul Agarwal , Aravind Kumar Padyana
- 申请人: SKYWORKS SOLUTIONS, INC.
- 申请人地址: US MA Woburn
- 专利权人: SKYWORKS SOLUTIONS, INC.
- 当前专利权人: SKYWORKS SOLUTIONS, INC.
- 当前专利权人地址: US MA Woburn
- 代理机构: Chang & Hale LLP
- 主分类号: H03G3/30
- IPC分类号: H03G3/30 ; H03F1/56 ; H03F3/193 ; H04B7/08 ; H03F1/22 ; H03G1/00 ; H03G3/00
摘要:
Described herein are variable gain amplifiers and multiplexers that embed programmable attenuators into switchable paths that allow signals in a high gain mode to bypass attenuation. This advantageously reduces or eliminates performance penalties in the high gain mode. The programmable attenuators can be configured to improve linearity of the amplification process through pre-LNA attenuation in targeted gain modes. In addition, described herein are variable gain amplifiers with embedded attenuators in a switching network. The attenuators can be embedded onto switches and can be configured to have little or no effect on a noise factor in a high gain mode because the switching network can provide an attenuation bypass in a high gain mode and an attenuation in other gain modes. The programmable attenuators can be embedded onto a multi-input LNA architecture.
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