发明名称 |
Delay stage circuitry for a ring oscillator |
摘要 |
A ring oscillator includes an even-numbered plurality of ring coupled delay stages. Each delay stage includes a differential amplifier, a voltage clamping circuit, and a current source. The differential amplifier receives first and second input signals from a preceding delay stage. The differential amplifier provides a first output signal and a complementary second output signal at first and second nodes, respectively. The voltage clamping circuit is coupled between the first and second nodes to limit a peak-to-peak voltage swing of each of the first and second output signals. The current source is coupled to the differential amplifier and varies a bias current in accordance with a delay bias voltage.
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申请公布号 |
US5799051(A) |
申请公布日期 |
1998.08.25 |
申请号 |
US19960711908 |
申请日期 |
1996.09.12 |
申请人 |
RAMBUS, INC. |
发明人 |
LEUNG, WINGYU;HOROWITZ, MARK ALAN |
分类号 |
H03K3/0231;H03K3/03;H03K3/354;H03L7/06;H03L7/07;H03L7/099;H04J3/06;H04L7/033;(IPC1-7):H03D3/24 |
主分类号 |
H03K3/0231 |
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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