发明名称 |
Method and circuit for trimming the frequency of an oscillator |
摘要 |
An integrated circuit oscillator which includes a capacitor, a reference current source coupled to the capacitor used to charge the latter, and a trigger circuit coupled to the capacitor having an upper input threshold for changing from a first state to a second state and a lower input threshold for changing from the second to the first state. A discharge circuit is coupled to the trigger circuit and is operative to discharge the capacitor in response to the trigger circuit changing states and to cease the discharging on changing back to its original state.
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申请公布号 |
US4723114(A) |
申请公布日期 |
1988.02.02 |
申请号 |
US19860882558 |
申请日期 |
1986.07.07 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
D'ARRIGO, SEBASTIANO;IMONDI, GIULIANO;VERGARA, SOSSIO |
分类号 |
H03K3/023;H03K3/0231;(IPC1-7):H03K3/02 |
主分类号 |
H03K3/023 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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