Invention Grant
- Patent Title: Clock signal distribution with reduced parasitic loading effects
- Patent Title (中): 时钟信号分布具有减小的寄生负载效应
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Application No.: US10744206Application Date: 2003-12-22
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Publication No.: US07528638B2Publication Date: 2009-05-05
- Inventor: Seong-hoon Lee , Feng Lin
- Applicant: Seong-hoon Lee , Feng Lin
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Ropes & Gray LLP
- Agent Jeffrey H. Ingerman; Chia-Hao La
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
Clock signal distribution systems with reduced parasitic loading effects are provided. A reference clock is frequency-divided to produce a lower frequency clock signal. A delay-locked loop (DLL) circuit locks to the lower frequency clock signal, and outputs a corresponding lower frequency clock signal for distribution over a long trace. Power consumption caused by parasitic capacitance of the trace is thereby reduced. Parasitic effects associated with clock jitter are also reduced. A frequency multiplying phase-locked loop (PLL) circuit locks to the lower frequency clock signal, and outputs at least one clock signal having a higher frequency than the lower frequency signal.
Public/Granted literature
- US20050134337A1 Clock signal distribution with reduced parasitic loading effects Public/Granted day:2005-06-23
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