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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A register-controlled symmetrical DLL for double-data-rate DRAM
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A register-controlled symmetrical DLL for double-data-rate DRAM

机译:用于双数据速率DRAM的寄存器控制的对称DLL

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This paper describes a register-controlled symmetricalndelay-locked loop (RSDLL) for use in a high-frequency double-data-ratenDRAM. The RSDLL inserts an optimum delay between the clock input buffernand the clock output buffer, making the DRAM output data changensimultaneously with the rising or falling edges of the input clock. ThisnRSDLL is shown to be insensitive to variations in temperature,npower-supply voltage, and process after being fabricated in 0.21 ΜmnCMOS technology. The measured r.m.s. jitter is below 50 ps when thenoperating frequency is in the range of 125-250 MHz
机译:本文介绍了一种用于高频双倍数据速率DRAM的寄存器控制的对称延迟锁定环(RSDLL)。 RSDLL在时钟输入缓冲区n和时钟输出缓冲区之间插入最佳延迟,从而使DRAM输出数据与输入时钟的上升沿或下降沿同时变化。该nRSDLL被证明对温度,n电源电压和以0.21 mnmnCMOS技术制造的工艺不敏感。测得的r.m.s.当工作频率在125-250 MHz范围内时,抖动低于50 ps

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