Invention Grant
US09319037B2 Self-adjusting clock doubler and integrated circuit clock distribution system using same
有权
自调整时钟倍增器和集成电路时钟分配系统使用相同
- Patent Title: Self-adjusting clock doubler and integrated circuit clock distribution system using same
- Patent Title (中): 自调整时钟倍增器和集成电路时钟分配系统使用相同
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Application No.: US14171469Application Date: 2014-02-03
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Publication No.: US09319037B2Publication Date: 2016-04-19
- Inventor: Arun Sundaresan Iyer , Alok Baluni , Samuel Naffziger , Sriram Sambamurthy
- Applicant: Advanced Micro Devices, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: ADVANCED MICRO DEVICES, INC.
- Current Assignee: ADVANCED MICRO DEVICES, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Polansky & Associates, P.L.L.C.
- Agent Paul J. Polansky
- Main IPC: H03B19/00
- IPC: H03B19/00 ; H03K5/13 ; H03K5/00

Abstract:
In one form, a clock doubler includes a switched inverter, an exclusive logic circuit, and a control signal generation circuit. The switched inverter has first and second control inputs for respectively receiving first and second control signals, a signal input for receiving a clock input signal, and an output. The exclusive logic circuit has a first input for receiving the clock input signal, a second input coupled to the output of the switched inverter, and an output for providing a clock output signal. A control signal generation circuit provides the first and second control signals in response to the clock output signal. The clock doubler may be used in a clock distribution circuit for an integrated circuit that also includes a phase locked loop for providing the input clock signals, and a plurality of clock sub-domains each having one of the clock doublers.
Public/Granted literature
- US20150222277A1 SELF-ADJUSTING CLOCK DOUBLER AND INTEGRATED CIRCUIT CLOCK DISTRIBUTION SYSTEM USING SAME Public/Granted day:2015-08-06
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