A 33.6-to-33.8Gb/s Burst-Mode CDR in 90nm CMOS

A 33.6-to-33.8Gb/s Burst-Mode CDR in 90nm CMOS
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采用 90nm CMOS 的 33.6 至 33.8Gb/s 突发模式 CDR

DOI:
10.1109/isscc.2007.373581
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发表时间:
2007
期刊:
2007 IEEE International Solid-State Circuits Conference. Digest of Technical Papers
影响因子:
--
通讯作者:
Shen
Shen
中科院分区:
--
文献类型:
--
作者:
Lan;Chihun Lee;Shen

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采用90 nmCMOS工艺实现了33.6 ~ 33.8Gb/s的突发式时钟恢复电路。讨论了LC门控压控振荡器、相位选择器、输入匹配电路和宽带数据缓冲器。在2n-1 PRBS输入下,在33.72Gb/s时,恢复数据的均方根抖动为1.15ps。该时钟恢复器可以容忍31个连续相同的比特,锁定时间为0.2ns(<7 b间隔)。它消耗73 mW从1.2V电源不包括缓冲器。
A 33.6-to-33.8 Gb/s burst-mode CDR circuit is realized in 90nm CMOS technology. The LC gated VCO, the phase selector the input matching circuit, and the wideband data buffer are discussed. With 2n-1 PRBS input, the measured rms jitter for the recovered data is 1.15ps at 33.72Gb/s. This CDR can tolerate 31 consecutive identical bits with a locking time of 0.2ns (<7b interval). It consumes 73mW from a 1.2V supply excluding the buffers.