A 60 mW per lane, 4 /spl times/ 23-Gb/s 2/sup 7/ PRBS generator

An ultra-low-power, 4-channel 22/sup 7/ - 1 PRBS generator with 60 mW per channel was designed, fabricated and measured to work up to 23 Gb/s. The circuit is based on a 2.5-mW BiCMOS CML latch topology, which, to the best of our knowledge, represents the lowest power for a latch operating above 10-Gb/s. The chip also includes an integrated PRBS checker and error counter.

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