Invention Grant
- Patent Title: High resolution and low power interpolator for delay chain
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Application No.: US15433853Application Date: 2017-02-15
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Publication No.: US10200046B1Publication Date: 2019-02-05
- Inventor: Chee Seng Leong , Tat Hin Tan
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Fletcher Yoder, P.C.
- Main IPC: H03L7/06
- IPC: H03L7/06 ; H03L7/081 ; H03K5/135 ; H03K5/06 ; H03K5/00

Abstract:
A delay-locked loop includes multiple inverters coupled together, wherein the inverters receive an input clock signal and output a first clock signal and a second clock signal. The input clock signal passes through a first set of inverters having a first number of inverters to generate the first clock signal. The input clock signal also passes through a second set of inverters having a second number of inverters one inverter greater than the first number of inverters to generate the second clock signal. The delay-locked loop also includes a polarity matching block that receives the first clock signal and the second clock signal and changes polarity of one of the first clock signal and the second clock signal.
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