Multi-channel multi-gigabit PRBS generator with a built-in clock in 0.18-μm CMOS technology

In this paper, a parallel pseudo-random bit sequence (PRBS) generator circuit with a built-in clock was designed in 0.18μm CMOS Technology. For high-speed operation, the current-mode logic (CML) was used in the circuit. In the PRBS generator, four-channel 2-Gb/s and two-channel 4-Gb/s PRBS signals can be generated. The power consumption of the chip is 554.3-mW at 1.8-V of power supply, and the chip area is 1.196×1.01-mm
²
. The PRBS generator can be suitable in multi-level modulation and multi-channel transmission tests.