Invention Grant
US07973577B2 Control of a variable delay line using line entry point to modify line power supply voltage
有权
使用线路入口点控制可变延迟线,以修改线路电源电压
- Patent Title: Control of a variable delay line using line entry point to modify line power supply voltage
- Patent Title (中): 使用线路入口点控制可变延迟线,以修改线路电源电压
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Application No.: US12432267Application Date: 2009-04-29
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Publication No.: US07973577B2Publication Date: 2011-07-05
- Inventor: Tyler Gomm , Kang Yong Kim , Jongtae Kwak
- Applicant: Tyler Gomm , Kang Yong Kim , Jongtae Kwak
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Wong, Cabello, Lutsch, Rutherford & Brucculeri, LLP
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
Disclosed herein is a VDL/DLL architecture in which the power supply to the VDL, VccVDL, is regulated at least as a function of the entry point of the input signal (ClkIn) into the VDL. Specifically, VccVDL is regulated to be higher when the delay through the VDL is relatively small (when the entry point is toward the right (or minimum delay) edge of the VDL) and is reduced when the delay is relatively high (when the entry point is toward the left (or maximum delay) edge of the VDL). This provides for graduated delays across the stages of the VDL, but without the need to design each stage separately. Other benefits include a VDL/DLL design operable over a wider range of frequencies, and a reduced number of stages, including a reduced number of buffer stages. Moreover, when the disclosed technique is used, buffer stages may be dispensed with altogether. Additionally, the disclosed VDL architecture can be used in any situation where it might be advantageous to delay a signal through a variable delay as a function of VDL entry point.
Public/Granted literature
- US20090206898A1 Control of a Variable Delay Line Using Line Entry Point to Modify Line Power Supply Voltage Public/Granted day:2009-08-20
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