公开(公告)号：WO1998014944A1

公开(公告)日：1998-04-09

申请号：PCT/US1997017668

申请日：1997-09-29

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： ADVANCED MICRO DEVICES, INC. ,  HOLST, John, Christian ,  DRAPER, Donald, A.

IPC: G11C05/14

CPC classification number: G11C5/14 ,  G11C5/147 ,  G11C7/065 ,  G11C7/1006 ,  G11C7/12 ,  G11C7/22 ,  G11C8/08 ,  G11C8/14 ,  G11C11/401 ,  G11C11/4087 ,  G11C11/41 ,  G11C11/412 ,  G11C11/418 ,  G11C16/04 ,  G11C17/14 ,  G11C29/02 ,  G11C29/021 ,  G11C29/025 ,  G11C29/026 ,  G11C29/028 ,  G11C29/18 ,  G11C29/32 ,  G11C29/50 ,  G11C29/50004 ,  G11C29/50012 ,  G11C29/50016 ,  G11C2029/5004 ,  G11C2029/5006 ,  H03K3/356156 ,  H03K5/13 ,  H03K2005/00019 ,  H03K2005/00071 ,  H03L7/08 ,  H03L7/0995

Abstract: An active power supply filter effectively eliminates power supply noise using a resistive element and a capacitive element coupled at a node, and a switch with a control terminal controlled by the node. The active power supply filter is suitable for high frequency operation of a voltage-controlled oscillator (VCO) in a phase-locked loop (PLL) of a high-speed microprocessor. The active power supply filter removes VCO noise that would otherwise create jitter that reduces the effective clock cycle of the microprocessor. The active power supply filter is similarly useful in applications other than VCOs, PLLs, and microprocessors in which removal of substantial amounts of noise from the power supply is useful.

Abstract translation: 有源电源滤波器使用电阻元件和耦合在节点处的电容元件以及由节点控制的具有控制端的开关有效地消除了电源噪声。 有源电源滤波器适用于高速微处理器的锁相环（PLL）中的压控振荡器（VCO）的高频操作。 有源电源滤波器消除了VCO噪声，否则会产生抖动，从而降低微处理器的有效时钟周期。 有源电源滤波器在除VCO，PLL和微处理器之外的应用中同样有用，其中从电源中去除大量噪声是有用的。

公开(公告)号：EP0929895B1

公开(公告)日：2001-11-28

申请号：EP97910744.8

申请日：1997-09-29

Applicant: Advanced Micro Devices, Inc.

Inventor： HOLST, John, Christian ,  DRAPER, Donald, A.

IPC: G11C5/14

CPC classification number: G11C5/14 ,  G11C5/147 ,  G11C7/065 ,  G11C7/1006 ,  G11C7/12 ,  G11C7/22 ,  G11C8/08 ,  G11C8/14 ,  G11C11/401 ,  G11C11/4087 ,  G11C11/41 ,  G11C11/412 ,  G11C11/418 ,  G11C16/04 ,  G11C17/14 ,  G11C29/02 ,  G11C29/021 ,  G11C29/025 ,  G11C29/026 ,  G11C29/028 ,  G11C29/18 ,  G11C29/32 ,  G11C29/50 ,  G11C29/50004 ,  G11C29/50012 ,  G11C29/50016 ,  G11C2029/5004 ,  G11C2029/5006 ,  H03K3/356156 ,  H03K5/13 ,  H03K2005/00019 ,  H03K2005/00071 ,  H03L7/08 ,  H03L7/0995

Abstract: An active power supply filter effectively eliminates power supply noise using a resistive element and a capacitive element coupled at a node, and a switch with a control terminal controlled by the node. The active power supply filter is suitable for high frequency operation of a voltage-controlled oscillator (VCO) in a phase-locked loop (PLL) of a high-speed microprocessor. The active power supply filter removes VCO noise that would otherwise create jitter that reduces the effective clock cycle of the microprocessor. The active power supply filter is similarly useful in applications other than VCOs, PLLs, and microprocessors in which removal of substantial amounts of noise from the power supply is useful.

公开(公告)号：EP0929895A1

公开(公告)日：1999-07-21

申请号：EP97910744.0

申请日：1997-09-29

Applicant: Advanced Micro Devices, Inc.

Inventor： HOLST, John, Christian ,  DRAPER, Donald, A.

IPC: G06F12 ,  G11C5 ,  G11C7 ,  G11C8 ,  G11C11 ,  G11C29 ,  H03K3 ,  H03K5 ,  H03L7

CPC classification number: G11C5/14 ,  G11C5/147 ,  G11C7/065 ,  G11C7/1006 ,  G11C7/12 ,  G11C7/22 ,  G11C8/08 ,  G11C8/14 ,  G11C11/401 ,  G11C11/4087 ,  G11C11/41 ,  G11C11/412 ,  G11C11/418 ,  G11C16/04 ,  G11C17/14 ,  G11C29/02 ,  G11C29/021 ,  G11C29/025 ,  G11C29/026 ,  G11C29/028 ,  G11C29/18 ,  G11C29/32 ,  G11C29/50 ,  G11C29/50004 ,  G11C29/50012 ,  G11C29/50016 ,  G11C2029/5004 ,  G11C2029/5006 ,  H03K3/356156 ,  H03K5/13 ,  H03K2005/00019 ,  H03K2005/00071 ,  H03L7/08 ,  H03L7/0995

Abstract: An active power supply filter effectively eliminates power supply noise using a resistive element and a capacitive element coupled at a node, and a switch with a control terminal controlled by the node. The active power supply filter is suitable for high frequency operation of a voltage-controlled oscillator (VCO) in a phase-locked loop (PLL) of a high-speed microprocessor. The active power supply filter removes VCO noise that would otherwise create jitter that reduces the effective clock cycle of the microprocessor. The active power supply filter is similarly useful in applications other than VCOs, PLLs, and microprocessors in which removal of substantial amounts of noise from the power supply is useful.