100-Gb/s 27-1 and 54-Gb/s 211-1 PRBS generators in SiGe bipolar technology

This paper presents two pseudo-random bit sequence (PRBS) generator ICs manufactured in a 200-GHz f(T) SiGe:C bipolar technology. One circuit uses a seven-stage shift register operating with a half-rate clock followed by a multiplexer and provides data rates up to 100 Gb/s. The second circuit contains an eleven-stage shift register and operates with a full-rate clock up to 54 Gb/s. The circuits operate with a supply voltage of -5 V at a power consumption of 1.5 W and 1.9 W, respectively. Both PRBS generator ICs provide a selectable eye/pattern trigger output.