发明名称 |
OSCILLATION CIRCUIT, CURRENT GENERATION CIRCUIT, AND OSCILLATION METHOD |
摘要 |
The present invention provides an oscillation circuit including: a first current source having dependency of current value/temperature exhibiting a first characteristic; a second current source having dependency of current value/temperature exhibiting a second characteristic; a first conversion section, input with a current from the first current source, that outputs a first current having a specific characteristic which is converted from the first characteristic; a second conversion section, input with a current from the second current source, that outputs a second current having a specific characteristic which is converted from the second characteristic; a subtraction section, input with the first and the second current, that outputs a difference current that is a difference between the first and the second current; and a clock generation section that generates a clock signal by alternately charging and discharging a first and a second capacitor based on the difference current. |
申请公布号 |
US2015326179(A1) |
申请公布日期 |
2015.11.12 |
申请号 |
US201514698193 |
申请日期 |
2015.04.28 |
申请人 |
LAPIS SEMICONDUCTOR CO., LTD. |
发明人 |
MITARASHI MUTSUMI |
分类号 |
H03B5/04 |
主分类号 |
H03B5/04 |
代理机构 |
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代理人 |
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主权项 |
1. An oscillation circuit comprising:
a first current source having a dependency of current value on temperature exhibiting a first characteristic; a second current source having a dependency of current value on temperature exhibiting a second characteristic; a first conversion section that is input with a current from the first current source and that outputs a first current including a specific characteristic which is converted from the first characteristic; a second conversion section that is input with a current from the second current source and that outputs a second current including a specific characteristic which is converted from the second characteristic; a subtraction section that is input with the first current and the second current and that outputs a difference current that is a difference between the first current and the second current; and a clock generation section that generates a clock signal by alternately charging and discharging a first capacitor and a second capacitor based on the difference current. |
地址 |
YOKOHAMA-SHI JP |