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公开(公告)号：EP3269036A1
公开(公告)日：2018-01-17
申请号：EP15709523.3
申请日：2015-03-13
CPC分类号： H03B5/364 , H03B1/04 , H03B5/02 , H03B5/06 , H03B5/1215 , H03B5/1228 , H03B2200/0094 , H03L7/093
摘要： A crystal oscillator circuit comprises a crystal; oscillator circuitry for generating a crystal oscillation signal at an oscillation frequency; and a kick-start circuit for injecting pulses into the crystal during a start-up period. The oscillator circuitry comprises a differential pair of transistors and can operate in an oscillating mode or a start-up mode. In the oscillating mode, the differential pair of transistors is cross-coupled so that a gate terminal of one transistor is coupled to a drain terminal of the other transistor, and vice versa, and the drain terminals are coupled to the crystal to generate the crystal oscillation signal. In the start-up mode, the kick-start circuit drives the gate terminals of the transistors with said pulses. This crystal oscillator circuit has a decreased start-up time compared to prior art solutions and a reduced influence of parasitic oscillations.
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公开(公告)号：EP4417009A1
公开(公告)日：2024-08-21
申请号：EP22797860.8
申请日：2022-10-13
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公开(公告)号：EP4107993A1
公开(公告)日：2022-12-28
申请号：EP20708234.8
申请日：2020-02-17
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公开(公告)号：EP4122284A1
公开(公告)日：2023-01-25
申请号：EP20718148.8
申请日：2020-03-18
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5.发明公开
公开(公告)号：EP3963924A1
公开(公告)日：2022-03-09
申请号：EP20721769.6
申请日：2020-04-17
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公开(公告)号：EP4420467A1
公开(公告)日：2024-08-28
申请号：EP22800855.3
申请日：2022-10-19
IPC分类号： H04W74/08
CPC分类号： H04W74/0833
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公开(公告)号：EP4211912A1
公开(公告)日：2023-07-19
申请号：EP20953454.4
申请日：2020-09-09
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公开(公告)号：EP3269036B1
公开(公告)日：2019-08-28
申请号：EP15709523.3
申请日：2015-03-13
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9.发明公开
公开(公告)号：EP4413820A1
公开(公告)日：2024-08-14
申请号：EP22783067.6
申请日：2022-09-19
发明人： PARICHEHREHTEROUJENI, Ali , CENTONZA, Angelo , RAMACHANDRA, Pradeepa , BELLESCHI, Marco , TORABIAN ESFAHANI, Tahmineh
CPC分类号： H04W74/0833 , H04W74/008
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10.发明公开
公开(公告)号：EP4173387A1
公开(公告)日：2023-05-03
申请号：EP20737621.1
申请日：2020-06-25
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