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