Analog Devices AD808 Manuals

AD808 is a 622 Mbps clock and data recovery IC with an integrated post-amplifier function. No external reference clocks are required. All SONET/SDH jitter specifications are exceeded, including jitter tolerance, jitter transfer, and jitter generation. With a substantial level of integration and superior jitter performance, Analog’s AD808 is industry-proven for use in OC-12/SDH-4 fiber optic receivers.

This document describes a fiber optic receiver with quantizer, clock recovery, and data retiming functionalities, manufactured by Analog Devices. The product meets the requirements of CCITT G.958 for STM-4 regenerator-Type A and also complies with Bellcore TR-NWT-000253 for OC-12 output jitter.

The AD808 is a fiber optic receiver with quantizer and clock recovery and data retiming. The product meets the CCITT G.958 standard and the Bellcore TR-NWT-000253 standard, supports 622 Mbps clock recovery and data retiming, accepts NRZ data, does not require a preamble code, and uses a phase-locked loop clock recovery, without a crystal.

The AD808 is a fiber optic receiver with quantizer and clock recovery and data retiming functions. The product meets the CCITT G.958 standard for STM-4 regeneration, and Bellcore TR-NWT-000253 standard for OC-12. Its output jitter is 2.5 degrees RMS, supports 622 Mbps clock recovery and data retiming, accepts NRZ data, no preamble required, and uses a phase-locked loop clock recovery, no crystal required. Its quantizer sensitivity is 4 mV, and its programmable level detection range is 10 mV to 40 mV. It can operate on a single power supply with a voltage range of +5 V or -5.2 V. Its power consumption is 400 mW, and its output is compatible with 10 KH ECL/PECL. It is packaged in a 16-lead narrow 150 mil SOIC.