发明名称 |
Fully-integrated high-speed interleaved voltage-controlled ring oscillator |
摘要 |
<p>An interleaved, tunable ring oscillator is disclosed that produces more output phases without resorting to interpolation. The oscillator is inherently symmetrical and suffers from none of the systematic time errors of an interpolator approach. The oscillator stages are interconnected to allow the oscillating frequency to be higher than the conventional limit of 1/(2*N*TD). Frequency tuning is accomplished by electronically varying the delay of each stage of the ring oscillator. A mixer cell performs a weighted sum of a first input and a second delayed input. The delay ranges from the delay of the mixer itself to the sum of the delays of the mixer and the delay cell. <IMAGE></p> |
申请公布号 |
EP0964516(A1) |
申请公布日期 |
1999.12.15 |
申请号 |
EP19980110073 |
申请日期 |
1998.06.03 |
申请人 |
AGILENT TECHNOLOGIES, INC. (A DELAWARE CORPORATION) |
发明人 |
KNOTTS, THOMAS A.;STOUT, CHERYL;WALKER, RICHARD C. |
分类号 |
H03K3/282;H03B27/00;H03K3/0231;H03K3/03;(IPC1-7):H03K3/023 |
主分类号 |
H03K3/282 |
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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