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A 2 GHz CMOS variable-gain amplifier with 50 dB linear-in-magnitude controlled gain range for 10GBase-LX4 Ethernet
2004 IEEE International Solid-State Circuits Conference (IEEE Cat. No.04CH37519)
The standard of next-generation gigabit Ethernet, 10GBase-LX4 Ethernet, was finalized in 2003 and is emerging into network markets [1]. 10GBase-LX4 Ethernet employs wavelength division multiplexing (WDM) to carry different channels on different wavelengths on a bundled fiber. 8B/10B coding scheme is deployed to ensure transmission quality. Figure 26 .8.1 shows the sophisticated implementation of 10GBase-LX4 Ethernet system. Each channel carries 3.125Gb/s data after optical demultiplexing, and
doi:10.1109/isscc.2004.1332805
fatcat:kiyr6b4orjboblhwklwbqkw4jy