The VSC8174 combines a clock recovery unit and data retiming with a 1:16 demultiplexer on a single chip to directly generate 16-bit wide data from an incoming 9.953 to 10.709Gb/s data stream, for use in SONET STS-192/ SDH STM-64 systems. An on-chip Phase Locked Loop (PLL) with Voltage Controlled Oscillator (VCO) generates a 9.953GHz to 10.709GHz clock, which remains phase locked to the incoming data. The incoming data is retimed and demultiplexed into 16 parallel LVDS outputs. It features a