A 10-Gbis SONET/SDH bit-error-rate monitoring LSI is fabricated by Si bipol
ar process. A byte-aligning demur architecture based on tree-type demur and
clock inversions by detecting inversion indicating patterns reduces the po
wer to only 14% of that of the previous chip, The LSI dissipates 0.6 W with
-3.3-V supply voltage.