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GENERAL DESCRIPTION

The ADN2807 provides the receiver functions of quantization, signal level detect, and clock and data recovery at rates of OC-3, OC-12, and 15/14 FEC. 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

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

REFCLK inputs: LVPECL/LVDS/LVCMOS/LVTTL compatible

(LVPECL/LVDS only at 155.52 MHz)

Optional 19.44 MHz on-chip oscillator 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, SDH STM-1/-4 and, 15/14 FEC rates

WDM transponders

Regenerators/repeaters

Test equipment

Passive optical networks