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. 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