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ADN2812

Part Number	ADN2812
Manufacturer	Analog Devices
Description	Continuous Rate 12.3 Mb/s to 2.7 Gb/s Clock and Data Recovery IC with Integrated Limiting Amp
Published	Mar 23, 2005
Detailed Description	Continuous Rate 12.3 Mb/s to 2.7 Gb/s Clock and Data Recovery IC with Integrated Limiting Amp ADN2812 FEATURES Serial d...
Datasheet	ADN2812 PDF File

Overview

Continuous Rate 12.
3 Mb/s to 2.
7 Gb/s Clock and Data Recovery IC with Integrated Limiting Amp ADN2812 FEATURES Serial data input: 12.
3 Mb/s to 2.
7 Gb/s Exceeds SONET requirements for jitter transfer/ generation/tolerance Quantizer sensitivity: 6 mV typical Adjustable slice level: ±100 mV Patented clock recovery architecture Loss of signal (LOS) detect range: 3 mV to 15 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: 750 mW typical 5 mm × 5 mm 32-lead LFCSP PRODUCT DESCRIPTION The ADN2812 provides the receiver functions of quantization, signal level detect, and clock and data recovery for continuous data rates from 12.
3 Mb/s to 2.
7 Gb/s.
The ADN2812 automatically locks to all data rates 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.
This device, together with a PIN diode and a TIA preamplifier, can implement a highly integrated, low cost, low power fiber optic receiver.
The receiver front end loss of signal (LOS) detector circuit indicates when the input signal level has fallen below a useradjustable threshold.
The LOS detect circuit has hysteresis to prevent chatter at the output.
The ADN2812 is available in a compact 5 mm × 5 mm 32-lead chip scale package.
APPLICATIONS SONET OC-1/3/12/48 and all associated FEC rates Fibre Channel, 2× Fibre Channel , GbE, HDTV, etc.
WDM transponders Regenerators/repeaters Test equipment Broadband cross-connects and routers FUNCTIONAL BLOCK DIAGRAM REFCLKP/N (OPTIONAL) LOL CF1 CF2 VCC VEE 2 SLICEP/N PIN NIN QUANTIZER PHASE SHIFTER FREQUENCY DETECT LOOP FILTER PHASE DETECT LOOP FILTER VCO VREF LOS DETECT DATA RE-TIMING 2 2 THRADJ LOS DATAOUTP/N CLKOUTP/N Figure 1.
Rev.
0...

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