GENERAL DESCRIPTION

The ADN2805 provides the receiver functions of quantization and clock and data recovery for 1.25 Gbps. The ADN2805 automatically locks to all data rates without the need for an external reference clock or programming. All SONET jitter requirements are met, including jitter transfer, jitter generation, and jitter tolerance.

All specifications are specified for −40°C to +85°C ambient temperature, unless otherwise noted. The ADN2805 is available in a compact 5 mm × 5 mm 32-lead LFCSP.

FEATURES

Locks to 1.25 Gbps NRZ serial data input

Patented clock recovery architecture

No reference clock required

Loss-of-lock indicator

I2C interface to access optional features

Single-supply operation: 3.3 V

Low power: 390 mW typical

5 mm × 5 mm 32-lead LFCSP, Pb free

APPLICATIONS

GbE line card