GENERAL DESCRIPTION
The ADN2804 provides the receiver functions of quantization, signal level detect, clock and data recovery, and data retiming for 622 Mbps NRZ data. The ADN2804 automatically locks to 622 Mbps data without the need for an external reference clock or programming. In the absence of input data, the output clock drifts no more than ±5%. All SONET jitter requirements are met, including jitter transfer, jitter generation, and jitter tolerance. All specifications are quoted for −40°C to +85°C ambient temperature, unless otherwise noted.

FEATURES
   Exceeds SONET requirements for jitter transfer/
      generation/tolerance
   Quantizer sensitivity: 3.3 mV typical
   Adjustable slice level: ±95 mV
   Patented clock recovery architecture
   Loss-of-signal (LOS) detect range: 2.6 mV to 18.4 mV
   Independent slice level adjust and LOS detector
   No reference clock required
   Loss-of-lock indicator
   I2C® interface to access optional features
   Single-supply operation: 3.3 V
   Low power: 423 mW typical
   5 mm × 5 mm, 32-lead LFCSP, Pb free

APPLICATIONS
   BPON ONT
   SONET OC-12
   WDM transponders
   Regenerators/repeaters
   Test equipment
   Broadband cross-connects and routers