Invention Grant
US08742862B1 Current reuse voltage controlled oscillator with improved differential output
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电流复用电压控制振荡器,具有改进的差分输出
- Patent Title: Current reuse voltage controlled oscillator with improved differential output
- Patent Title (中): 电流复用电压控制振荡器,具有改进的差分输出
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Application No.: US13676007Application Date: 2012-11-13
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Publication No.: US08742862B1Publication Date: 2014-06-03
- Inventor: Mazhareddin Taghivand
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kenyon S. Jenckes
- Main IPC: H03L7/00
- IPC: H03L7/00 ; H03B1/00

Abstract:
A current reuse voltage controlled oscillator with improved differential output is disclosed. In an exemplary embodiment, an apparatus includes a PMOS transistor and an NMOS transistor coupled together for current reuse and configured to provide differential oscillator outputs. The apparatus also includes a common mode rejection (CMR) circuit coupled between the PMOS and the NMOS transistors, the CMR circuit includes an inductor having a least one tap that can be selectively coupled to a ground to reduce common mode signals at the differential oscillator outputs.
Public/Granted literature
- US20140132359A1 CURRENT REUSE VOLTAGE CONTROLLED OSCILLATOR WITH IMPROVED DIFFERENTIAL OUTPUT Public/Granted day:2014-05-15
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