AD808 pdf datasheet 622 Mbps Low Power Post-Amp/Clock and

The AD808 provides the receiver functions of data quantization, signal level detect, clock recovery and data retiming for 622 Mbps NRZ data. The device, together with a PIN diode/preamplifier combination, can be used for a highly integrated, low cost, low power SONET OC-12 or SDH STM-4 fiber optic receiver.