ADN2812ACPZ-RL7

Overview

The ADN2812ACPZ-RL7 is a continuous rate clock and data recovery IC from Analog Devices, operating within a frequency range of 12.3 Mb/s to 2.7 Gb/s. It features an integrated limiting amplifier and requires no external reference clock for standard operation. The device accepts CML differential inputs and provides CML differential outputs for recovered clock and data signals. It operates on a single 3.0 V to 3.6 V supply with a typical power consumption of 750 mW. The component is housed in a 32-lead LFCSP package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Auto-locking CDR architecture supporting data rates from 12.3 Mb/s to 2.7 Gb/s without external reference clock programming
• Exceeds SONET GR-253-CORE jitter transfer, generation, and tolerance requirements
• Integrated quantizer with 6 mV typical sensitivity and adjustable slice level (±100 mV)
• Includes Loss of Signal (LOS) detector with user-adjustable threshold and hysteresis

Applications

• SONET OC-1/OC-3/OC-12/OC-48 and associated FEC rates
• Fibre Channel, 2x Fibre Channel, GbE, and HDTV systems
• WDM transponders and regenerators/repeaters
• Broadband cross-connects and routers

Procurement Notes

Verify the specific ordering suffix RL7 against the manufacturer's current datasheet revision E to confirm packaging details. Confirm availability status as distribution channels may indicate limited stock or discontinuation. Ensure the 32-LFCSP-WQ (5x5) package dimensions match the PCB footprint design guidelines provided in the official documentation.

Selection Notes

Select this component for applications requiring high-speed clock recovery up to 2.7 Gb/s with low jitter peaking. The internal phase shifter minimizes jitter accumulation in cascaded regenerator chains. Ensure the input signal meets the 100 Ω differential impedance requirement. Verify that the system power budget accommodates the typical 235 mA supply current at 3.3 V.

Part Context

This part belongs to the ADN2812 series of clock and data recovery devices designed for optical communication receivers. It functions as the receiver front end when paired with a PIN diode and TIA preamplifier. The device integrates quantization, signal level detection, and clock/data recovery into a single compact package, reducing system complexity compared to discrete solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the verified source material.