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11.发明申请公开(公告)号：US20190035847A1
公开(公告)日：2019-01-31
申请号：US16043681
申请日：2018-07-24
发明人： Fumikazu KOMATSU , Akio TSUTSUMI
CPC分类号： H01L27/20 , G01D5/14 , G04F10/005 , H01L41/0475 , H01L41/053 , H03H9/0519 , H03H9/13 , H03H9/17 , H03H9/205 , H03K5/05 , H03K5/24 , H03L7/07 , H03L7/099 , H03L7/23
摘要： An integrated circuit device includes a terminal region in which a second signal terminal to which a second signal is input is disposed, an AFE circuit (analog front-end circuit) that performs waveform shaping of the second signal, and a time-to-digital converter that converts a time difference between a transition timing of a first signal and a transition timing of the second signal subjected to waveform shaping, to a digital value. When a direction from a first side of the integrated circuit device toward a second side facing the first side is set as a first direction, the AFE circuit is disposed on the first direction side of the terminal region, and the time-to-digital converter is disposed on at least one side of the first direction side of the AFE circuit and a side of a direction intersecting the first direction.
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公开(公告)号：US20190006989A1
公开(公告)日：2019-01-03
申请号：US16021458
申请日：2018-06-28
摘要： A resonator device includes first and second resonators and an integrated circuit device. The integrated circuit device includes a first oscillation circuit configured to oscillate the first resonator, a second oscillation circuit configured to oscillate the second resonator, and a processing circuit configured to perform processing by using frequency difference information or frequency comparison information between a first clock signal generated by oscillating the first resonator and a second clock signal generated by oscillating the second resonator. The first resonator is supported on the integrated circuit device by a first support portion. The second resonator is supported on the integrated circuit device by a second support portion.
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13.发明申请公开(公告)号：US20180091159A1
公开(公告)日：2018-03-29
申请号：US15712735
申请日：2017-09-22
发明人： Akio TSUTSUMI , Katsuhiko MAKI
CPC分类号： H03L7/0812 , H03K5/135
摘要： A circuit device includes a DLL circuit and an adjustment circuit. The DLL circuit has a plurality of delay elements, and a first clock signal generated using a first resonator and having a first clock frequency is input to the DLL circuit. Delayed clock signals from the delay elements of the DLL circuit, and a second clock signal generated using a second resonator and having a second clock frequency lower than the first clock frequency are input to the adjustment circuit, and the adjustment circuit adjusts delay amounts of the delay elements of the DLL circuit using a frequency difference between the first clock frequency and the second clock frequency.
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公开(公告)号：US20180091156A1
公开(公告)日：2018-03-29
申请号：US15715607
申请日：2017-09-26
摘要： An integrated circuit device includes: a first oscillation circuit that oscillates a first resonator to generate a first clock signal with a first clock frequency; a second oscillation circuit that oscillates a second oscillation element to generate a second clock signal with a second clock frequency that is different from the first clock frequency; and a time-to-digital conversion circuit that converts a time into a digital value using the first and second clock signals.
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公开(公告)号：US20240030871A1
公开(公告)日：2024-01-25
申请号：US18354988
申请日：2023-07-19
发明人： Hisahiro ITO , Saneyuki IMAMURA , Akio TSUTSUMI
摘要： A circuit unit includes a first terminal functioning as a power supply terminal or a voltage input terminal, to which a first voltage is applied, a second terminal to which a second voltage is applied, an oscillation circuit oscillating a vibrator, a first switch electrically coupling or decoupling the first terminal and the oscillation circuit, a second switch electrically coupling or decoupling the second terminal and the oscillation circuit, and a selection circuit controlling the first switch and the second switch based on the first voltage and supplying one of the first voltage and the second voltage as a power supply voltage to the oscillation circuit.
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公开(公告)号：US20220276100A1
公开(公告)日：2022-09-01
申请号：US17680680
申请日：2022-02-25
发明人： Akio TSUTSUMI , Hideo HANEDA
摘要： The digital-output temperature sensor includes a temperature sensor circuit, a current mirror circuit which makes a mirror current of a temperature detection current flow and pulls in a mirror current of a reference current to thereby output a first difference current from a first output node and output a second difference current from a second output node, a chopping circuit, and an A/D conversion circuit. The chopping circuit performs a chopping operation of making the mirror current of the reference current flow in a second state through a transistor of the current mirror circuit through which the mirror current of the temperature detection current flows in a first state, and making the mirror current of the temperature detection current flow in the second state through the transistor of the current mirror circuit through which the mirror current of the reference current flows in the first state.
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公开(公告)号：US20210273643A1
公开(公告)日：2021-09-02
申请号：US17186129
申请日：2021-02-26
发明人： Akio TSUTSUMI , Ryo ICHIKAWA , Hisahiro ITO , Yasunari FURUYA
摘要： There is configured a charge pump circuit for outputting a phase difference current to a first node, the charge pump circuit including a first current source coupled between a high potential power supply node and the first node, a second current source coupled between a low potential power supply node and the first node, a first switch coupled between the first current source and the first node, a second switch coupled between the second current source and the first node, a third switch coupled between the first current source and a second node, a fourth switch coupled between the second current source and the second node, a third current source for supplying a negative offset current to the first node, and a push-type differential amplifier circuit an input side of which is coupled to the first node, and an output side of which is coupled to the second node.
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公开(公告)号：US20200256928A1
公开(公告)日：2020-08-13
申请号：US15776147
申请日：2016-11-09
发明人： Akio TSUTSUMI , Naoki YOSHIDA
IPC分类号： G01R31/64
摘要： A diagnostic circuit is provided that diagnoses a connection state of a capacitor connected to an output terminal of a regulator that outputs a first voltage, the diagnostic circuit including: a switching circuit that performs, during a first period, a switching control process of switching an output voltage of the regulator to a second voltage that is higher than the first voltage; a detecting circuit that detects a variation in an output current of the regulator caused by the switching control process; and a determining circuit that determines the connection state of the capacitor, based on a detection result of the detecting circuit.
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19.发明申请公开(公告)号：US20190033793A1
公开(公告)日：2019-01-31
申请号：US16043789
申请日：2018-07-24
发明人： Fumikazu KOMATSU , Akio TSUTSUMI
IPC分类号： G04F10/00 , H03D13/00 , H03K5/24 , G01R19/165 , H03L7/07 , H03L7/089 , B60R16/027 , B60R16/023
摘要： An integrated circuit device includes: an AFE circuit (analog front-end circuit) that receives a first signal and a second signal, carries out waveform shaping of the first signal and waveform shaping of the second signal, outputs the first signal whose waveform is shaped to a first signal line, and outputs the second signal whose waveform is shaped to a second signal line; and a time-to-digital converter that receives the first signal from the AFE circuit via the first signal line, receives the second signal from the AFE circuit via the second signal line, and converts a time difference between transition timings of the first signal and the second signal into a digital value. At least one of the first signal line and the second signal line has redundant wiring for isometric wiring.
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公开(公告)号：US20190007027A1
公开(公告)日：2019-01-03
申请号：US16021092
申请日：2018-06-28
摘要： A resonator device includes first and second resonators and an integrated circuit. The integrated circuit includes first and second oscillation circuits that oscillate first and second resonators, first and second terminals connected to the first oscillation circuit, and third and fourth terminals connected to the second oscillation circuit. The first terminal of the integrated circuit and one electrode of the first resonator are connected to each other via a bump. The third terminal and one electrode of the second resonator are connected to each other via a bump. In a plan view, at least a portion of the first resonator overlaps the first oscillation circuit and at least a portion of the second resonator overlaps the second oscillation circuit.
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