The optical terminal IC: A 2.4 Gb/s receiver and a 1:16 demultiplexer in one chip

Abstract

This paper reports the 2.4 Gb/s optical terminal IC integrating high-speed analog and digital circuits for future optical networks. The IC consists of a receiver (a preamplifier, an automatic gain control (AGC) amplifier, a phase-locked-loop (PLL), a D-F/F), and a 1:16 demultiplexer (DMUX). An input offset control circuit is included in the AGC amplifier for wide dynamic range. The trench isolation and SOI technologies are introduced to reduce the crosstalk effect between the amplifiers and the PLL.