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首页> 外文期刊>IEEE Journal of Solid-State Circuits >A 22-Gb/s PAM-4 Receiver in 90-nm CMOS SOI Technology
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A 22-Gb/s PAM-4 Receiver in 90-nm CMOS SOI Technology

机译:采用90 nm CMOS SOI技术的22 Gb / s PAM-4接收器

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摘要

We report a receiver for four-level pulse-amplitude modulated (PAM-4) encoded data signals, which was measured to receive data at 22 Gb/s with a bit error rate (BER) < 10{sup}(-12) at a maximum frequency deviation of 350 ppm and a 2{sup}7 - 1 PRBS pattern. We propose a bit-sliced architecture for the data path, and a novel voltage shifting amplifier to introduce a programmable offset to the differential data signal. We present a novel method to characterize sampling latches and include them in the data path. A current-mode logic (CML) biasing scheme using programmable matched resistors limits the effect of process variations. The receiver also features a programmable signal termination, an analog equalizer and offset compensation for each sampling latch. The measured current consumption is 207 mA from a 1.1-V supply, and the active chip area is 0.12 mm{sup}2.
机译:我们报告了一种用于四电平脉冲幅度调制(PAM-4)编码数据信号的接收器,该接收器经测量以22 Gb / s的速率接收数据,误码率(BER)<10 {sup}(-12)在最大频率偏差为350 ppm,并具有2 {sup} 7-1的PRBS模式。我们提出了一种用于数据路径的位分片架构,以及一种新型的电压移位放大器,以向差分数据信号引入可编程偏移。我们提出了一种新颖的方法来表征采样锁存器并将它们包括在数据路径中。使用可编程匹配电阻器的电流模式逻辑(CML)偏置方案限制了工艺变化的影响。接收器还具有可编程信号终端,模拟均衡器和每个采样锁存器的失调补偿。从1.1V电源测得的电流消耗为207 mA,有源芯片面积为0.12 mm {sup} 2。

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