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1.发明申请公开(公告)号：US20180048293A1
公开(公告)日：2018-02-15
申请号：US15352402
申请日：2016-11-15
Applicant: QUALCOMM Incorporated
Inventor： Timothy Donald GATHMAN , Ojas CHOKSI , Aleksandar Miodrag TASIC , Sasha VUJCIC , Chirag Dipak PATEL , Wu-Hsin CHEN , Klaas VAN ZALINGE
CPC classification number: H03H11/0427 , H03F3/19 , H03F2200/294 , H03F2200/451 , H03H11/126 , H03H2011/0483 , H03H2011/0488 , H04B1/0053 , H04B1/1036 , H04L5/0041 , H04W88/08
Abstract: A reconfigurable filter circuit has a first path including a transimpedance amplifier (TIA). The transimpedance amplifier has an input that receives an input current and an output that outputs a voltage. The reconfigurable filter circuit also includes a switchable feedback path. The switchable feedback path includes a first low-pass filter coupled to an output of the TIA. The switchable feedback path also includes a first switch to couple the feedback path to provide a feedback current to the first path resulting in a bandpass response in the output voltage when the switch is closed and a low-pass response in the output voltage when the switch is open.
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公开(公告)号：US20180048271A1
公开(公告)日：2018-02-15
申请号：US15287674
申请日：2016-10-06
Applicant: QUALCOMM Incorporated
Inventor： Chirag Dipak PATEL , Sasha VUJCIC , Aleksandar Miodrag TASIC , Timothy GATHMAN , Wu-Hsin CHEN , Klaas VAN ZALINGE
CPC classification number: H03F3/19 , H03F1/086 , H03F1/26 , H03F3/195 , H03F3/3022 , H03F3/68 , H03F2200/111 , H03F2200/168 , H03F2200/264 , H03F2200/294 , H03F2200/372 , H03F2200/39 , H03F2200/429 , H03F2200/451 , H03F2200/61 , H03F2200/75 , H03H7/06 , H03H11/04 , H04W88/02
Abstract: A multi-stage low-noise amplifier (LNA) device with a band pass response includes a first LNA in series with a second LNA. The device further includes multiple outputs coupled to the second LNA. Each of the outputs is capable of being active at the same time. The device further includes a high pass filter coupled between the first LNA and the second LNA.
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