PRODUCT DESCRIPTION

The ADN2819 provides the receiver functions of quantization, signal level detect, and clock and data recovery at rates of OC-3, OC-12, OC-48, Gigabit Ethernet, and 15/14 FEC rates. 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

Meets SONET requirements for jitter

transfer/generation/tolerance

Quantizer sensitivity: 4 mV typical

Adjustable slice level: ±100 mV

1.9 GHz minimum bandwidth

Patented clock recovery architecture

Loss of signal detect range: 3 mV to 15 mV

Single reference clock frequency for all rates, including

15/14 (7) wrapper rate

Choice of 19.44 MHz, 38.88 MHz, 77.76 MHz, or 155.52 MHz

REFCLK

LVPECL/LVDS/LVCMOS/LVTTL compatible inputs

(LVPECL/LVDS only at 155.52 MHz)

19.44 MHz oscillator on-chip to be used with external crystal

Loss of lock indicator

Loopback mode for high speed test data

Output squelch and bypass features

Single-supply operation: 3.3 V

Low power: 540 mW typical

7 mm × 7 mm 48-lead LFCSP

APPLICATIONS

SONET OC-3/-12/-48, SDH STM-1/-4/-16, GbE and 15/14

FEC rates

WDM transponders

Regenerators/repeaters

Test equipment

Backplane applications