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公开(公告)号：US10355697B2
公开(公告)日：2019-07-16
申请号：US15725299
申请日：2017-10-05
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hsiang Chang , Chih-Hung Chen
Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
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公开(公告)号：US20180034467A1
公开(公告)日：2018-02-01
申请号：US15725299
申请日：2017-10-05
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hsiang Chang , Chih-Hung Chen
CPC classification number: H03L1/022 , H03B5/04 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1237 , H03B5/1271 , H03B5/1296 , H03B2200/0038 , H03L1/00
Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
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公开(公告)号：US09819348B2
公开(公告)日：2017-11-14
申请号：US14829657
申请日：2015-08-19
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hsiang Chang , Chih-Hung Chen
CPC classification number: H03L1/022 , H03B5/04 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1237 , H03B5/1271 , H03B5/1296 , H03B2200/0038 , H03L1/00
Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
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4.发明申请公开(公告)号：US20160126959A1
公开(公告)日：2016-05-05
申请号：US14829657
申请日：2015-08-19
Applicant: Novatek Microelectronics Corp.
Inventor： Chih-Hsiang Chang , Chih-Hung Chen
CPC classification number: H03L1/022 , H03B5/04 , H03B5/1215 , H03B5/1225 , H03B5/1228 , H03B5/1237 , H03B5/1271 , H03B5/1296 , H03B2200/0038 , H03L1/00
Abstract: An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.
Abstract translation: 提供了一种配置成产生振荡信号的振荡器。 振荡器包括晶体管对和交叉耦合晶体管对。 晶体管对耦合到第一电流源并且具有第一跨导。 第一跨导响应于第一电流源的当前值而改变。 交叉耦合晶体管对耦合到第二电流源并具有第二跨导。 第二跨导响应于第二电流源的当前值而改变。 晶体管对和交叉耦合晶体管对由多个电感器相互耦合。 根据第一跨导和第二跨导来确定振荡信号的频率。 此外，还提供了时钟发生器和用于产生其时钟信号的方法。
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