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引用次数: 5
摘要
背板互连中频率响应的限制阻碍了超过Gbps的高速数据传输。提出了一种14gb /s的4-PAM自适应模拟均衡器，利用和反馈滤波器(SFF)补偿40英寸背板互连，降低了传统模拟前馈均衡器(FFE)的设计要求。为了在带宽有限的信道中提高传输数据速率，还采用了4级脉冲幅度调制(PAM)。4-PAM自适应均衡器采用0.18 μ m CMOS技术制造，同时从单个1.8 v电源消耗121 mW。
A 14-Gb/s 4-PAM Adaptive Analog Equalizer for 40-inch Backplane Interconnections
Limitations of frequency response in backplane interconnections impede high-speed data transmission beyond Gbps. A 14-Gb/s 4-PAM adaptive analog equalizer is proposed to compensate the 40-inch backplane interconnections by using a sum-feedback filter (SFF), relaxing the design requirement of the conventional analog feed-forward equalizers (FFE). 4-level pulse amplitude modulation (PAM) is also adopted to increase the transmission data rate over bandwidth-limited channel. The 4-PAM adaptive equalizer has been fabricated in a 0.18-mum CMOS technology, while dissipating 121 mW from a single 1.8-V power supply.
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