发明授权
- 专利标题: Voltage-controlled oscillator resistant to supply voltage noise
- 专利标题(中): 电压控制振荡器可抵抗电源电压噪声
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申请号: US920336申请日: 1997-08-27
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公开(公告)号: US5955929A公开(公告)日: 1999-09-21
- 发明人: Yongsam Moon , Deog-Kyoon Jeong
- 申请人: Yongsam Moon , Deog-Kyoon Jeong
- 申请人地址: CA Cupertino
- 专利权人: Silicon Image, Inc.
- 当前专利权人: Silicon Image, Inc.
- 当前专利权人地址: CA Cupertino
- 主分类号: H03K3/013
- IPC分类号: H03K3/013 ; H03K3/0231 ; H03K3/03 ; H03B5/04 ; H03B5/24
摘要:
A voltage-controlled oscillator (VCO) generates an oscillating signal that is substantially resistant to noise fluctuations in the supply voltage. The VCO is a delay-based VCO which preferably includes a compensation circuit for each delay cell and a noise-immune reference current generator for providing a noise-immune bias current to the conditioning circuit of the VCO. The compensation circuit preferably adjusts the capacitance of the delay cell to compensate for the variations in current caused by the supply noise. The noise-immune reference current generator preferably utilizes a configuration of transistors which maintains through at least one transistor a substantially constant current which is used to bias the conditioning circuit.
公开/授权文献
- US5292163A Hook apparatus for lifting a heavy object 公开/授权日:1994-03-08