- 专利标题: Single-pole double-throw switch circuit with type-c interface, analog switch chip, and electronic device
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申请号: US17280907申请日: 2020-08-10
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公开(公告)号: US11451224B2公开(公告)日: 2022-09-20
- 发明人: Hongxia Tao
- 申请人: SHANGHAI YAOHUO MICROELECTRONICS Co., Ltd.
- 申请人地址: CN Shanghai
- 专利权人: SHANGHAI YAOHUO MICROELECTRONICS Co., Ltd.
- 当前专利权人: SHANGHAI YAOHUO MICROELECTRONICS Co., Ltd.
- 当前专利权人地址: CN Shanghai
- 代理机构: NZ Carr Law Office PLLC
- 优先权: CN201910802895.3 20190828
- 国际申请: PCT/CN2020/108147 WO 20200810
- 国际公布: WO2021/036772 WO 20210304
- 主分类号: H03K17/567
- IPC分类号: H03K17/567 ; G06F17/00 ; H03K17/51
摘要:
The present invention provides a single-pole double-throw switch circuit with a Type-C interface, an analog switch chip and an electronic device, which can generate a reverse bias voltage across a first diode, so that a capacitance value of a PN junction can be significantly reduced after the reverse bias voltage is applied to the PN junction. Further, a ground capacitance corresponding to a COM point when the first diode is turned off can be effectively reduced, avoiding the reduction of a bandwidth of a digital path due to excessive capacitance. It can be seen that the present invention can realize a large size of a first field effect transistor and a high bandwidth of the digital path simultaneously, thereby facilitating the simultaneous improvement of the THD performance of an analog audio path and the bandwidth of the digital path, and avoiding conflicts between the two.
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