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A 1-pJ bit 80-Gb s 215-1 PRBS Generator With a Modified Cherry-Hooper Output Dri
一款低功耗80Gb/s伪随机二进制序列生成器，采用改进Cherry-Hooper输出驱动，性能优异。
130nm SiGe, 1 pJ/bit, 80 Gb/s, 300-mV眼图开度, 0.6-ps rms抖动
伪随机二进制序列低功耗Cherry-Hooper放大器SiGe工艺眼图
▸1 pJ/bit的能效优化
▸40 dB以上的杂散抑制
▸改进的Cherry-Hooper放大器设计
Abstract
An 80-Gb/s 215 − 1 pseudorandom binary sequence
(PRBS) generator suitable for testing binary communication
systems is presented. Implemented in a 130-nm SiGe process,
the circuit is optimized for low power dissipation. For the core
functionality, an energy efficiency of 1 pJ/bit is achieved, which
is one of the best values among comparable published designs.
In addition, the improvement of the output signal in time domain
and frequency domain is targeted. The key factors affecting
an ideal PRBS s