Invention Grant
US09401699B2 High frequency low-gain noise ring-type VCO oscillator leading to a low-noise/area PLL
有权
高频低增益噪声环型VCO振荡器导致低噪声/区域PLL
- Patent Title: High frequency low-gain noise ring-type VCO oscillator leading to a low-noise/area PLL
- Patent Title (中): 高频低增益噪声环型VCO振荡器导致低噪声/区域PLL
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Application No.: US14090759Application Date: 2013-11-26
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Publication No.: US09401699B2Publication Date: 2016-07-26
- Inventor: Amit Katyal
- Applicant: STMicroelectronics International N.V.
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics International N.V.
- Current Assignee: STMicroelectronics International N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Seed IP Law Group PLLC
- Main IPC: H03K3/03
- IPC: H03K3/03 ; H03L7/099 ; G05F3/26
Abstract:
A phase locked loop includes a voltage-controlled oscillator and a current mirror circuit that supplies a drive current to the voltage-controlled oscillator. The current mirror circuit includes a filter between a bias current generator and current mirror transistor. The filter includes a first and a second switch driven in unison with a small duty cycle.
Public/Granted literature
- US20150145608A1 HIGH FREQUENCY LOW-GAIN NOISE RING-TYPE VCO OSCILLATOR LEADING TO A LOW-NOISE/AREA PLL Public/Granted day:2015-05-28
Information query
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