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ADN2905 Dataheets PDF



Part Number ADN2905
Manufacturers Analog Devices
Logo Analog Devices
Description CPRI and 10G Ethernet Data Recovery IC
Datasheet ADN2905 DatasheetADN2905 Datasheet (PDF)

Data Sheet CPRI and 10G Ethernet Data Recovery IC with Amp/EQ from 614.4 Mbps to 10.3125 Gbps ADN2905 FEATURES GENERAL DESCRIPTION Serial CPRI data rates 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps, 3.072 Gbps, 4.9152 Gbps, 6.144 Gbps, and 9.8304 Gbps Ethernet data rates: 1.25 Gbps and 10.3125 Gbps No reference clock required Jitter performance superior to the SFF-8431 jitter specifications Optional equalizer or 0 dB EQ input mode Quantizer sensitivity: 200 mV p-p typical (equalizer mode) Sample ph.

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Data Sheet CPRI and 10G Ethernet Data Recovery IC with Amp/EQ from 614.4 Mbps to 10.3125 Gbps ADN2905 FEATURES GENERAL DESCRIPTION Serial CPRI data rates 614.4 Mbps, 1.2288 Gbps, 2.4576 Gbps, 3.072 Gbps, 4.9152 Gbps, 6.144 Gbps, and 9.8304 Gbps Ethernet data rates: 1.25 Gbps and 10.3125 Gbps No reference clock required Jitter performance superior to the SFF-8431 jitter specifications Optional equalizer or 0 dB EQ input mode Quantizer sensitivity: 200 mV p-p typical (equalizer mode) Sample phase adjust (5.65 Gbps or greater) Output polarity invert I2C to access optional features Loss of lock (LOL) indicator PRBS generator/detector Application aware power 349.5 mW at 9.8304 Gbps, 0 dB EQ input mode 287.7 mW at 6.144 Gbps, 0 dB EQ input mode 249.3 mW at 3.072 Gbps, 0 dB EQ input mode Power supply: 1.2 V, flexible 1.8 V to 3.3 V, and 3.3 V 4 mm × 4 mm, 24-lead LFCSP APPLICATIONS The ADN2905 provides the receiver functions of quantization and multirate data recovery at 614.4 Mbps, 1.2288 Gbps, 1.25 Gbps, 2.4576 Gbps, 3.072 Gbps, 4.9152 Gbps, 6.144 Gbps, 9.8304 Gbps, and 10.3125 Gbps, used in Common Public Radio Interface (CPRI) and gigabit Ethernet applications. The ADN2905 automatically locks to all the specified CPRI and Ethernet data rates without the need for an external reference clock or programming. The ADN2905 jitter performance exceeds the jitter requirement specified by SFF-8431. The ADN2905 provides manual sample phase adjustment. Additionally, the user can select an equalizer or a 0 dB EQ as the input. The equalizer is either adaptive or can be manually set. The ADN2905 also supports pseudorandom binary sequence (PRBS) generation, bit error detection, and input data rate readback features. The ADN2905 is available in a compact 4 mm × 4 mm, 24-lead chip scale package (LFCSP). All ADN2905 specifications are defined over the ambient temperature range of −40°C to +85°C, unless otherwise noted. SFF-8431-compatible Ethernet: 10GE, 1GE, and CPRI: OS/L.6 up to OS/L.96 FUNCTIONAL BLOCK DIAGRAM SCK SDA LOL REFCLKP/ REFCLKN (OPTIONAL) DATOUTP/ DATOUTN I2C_ADDR I2C REGISTERS FREQUENCY ACQUISITION AND LOCK DETECTOR DATA RATE ADN2905 CML CLK DDR TXD 12624-001 SAMPLE PHASE ADJUST FIFO ÷N ÷2 PIN 2 0dB EQ DATA INPUT NIN SAMPLER 50Ω 50Ω EQ I2C VCM VCC FLOAT I2C RXD RXCK DOWNSAMPLER AND LOOP FILTER PHASE SHIFTER DCO CLOCK Figure 1. Rev. A Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 ©2014–2016 Analog Devices, Inc. All rights reserved. Technical Support www.analog.com ADN2905* Product Page Quick Links Last Content Update: 08/30/2016 Comparable Parts View a parametric search of comparable parts Evaluation Kits • ADN2905/ADN2913/ADN2915/ADN2917 Evaluation Board Documentation Data Sheet • ADN2905: CPRI and 10G Ethernet Data Recovery IC with Amp/EQ from 614.4 Mbps to 10.3125 Gbps Data Sheet User Guides • UG-877: ADN2905/ADN2913/ADN2915/ADN2917 Evaluation Board Setup and Applications Design Resources • ADN2905 Material Declaration • PCN-PDN Information • Quality And Reliability • Symbols and Footprints Discussions View all ADN2905 EngineerZone Discussions Sample and Buy Visit the product page to see pricing options Technical Support Submit a technical question or find your regional support number * This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to the content on this page does not constitute a change to the revision number of the product data sheet. This content may be frequently modified. ADN2905 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Jitter Specifications ....................................................................... 4 Output and Timing Specifications ............................................. 5 Timing Diagrams.......................................................................... 6 Absolute Maximum Ratings.........


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