Overview

Features and Benefits

  • Port level 2:1 mux/1:2 demux
  • Each port consists of 4 lanes
  • Each lane runs from dc to 3.2 Gbps, independent of the other lanes
  • Compensates over 40 inches of FR4 at 3.2 Gbps through 2 levels of input equalization or 4 levels of output pre-emphasis
  • Accepts ac- or dc-coupled differential CML inputs
  • Low deterministic jitter, typically 20 ps p-p
  • Low random jitter, typically 1 ps rms
  • BER < 10−16
  • Please see data sheet for additional features

Product Details

The AD8159 is an asynchronous, protocol agnostic, quad-lane 2:1 switch with 12 differential PECL-/CML-compatible inputs and 12 differential CML outputs. The operation of this product is optimized for NRZ signaling with data rates of up to 3.2 Gbps per lane. Each lane offers two levels of input equalization and four levels of output pre-emphasis.

The AD8159 consists of four multiplexers and four demultiplexers, one per lane. Each port is a four-lane link, and each lane runs up to a 3.2 Gbps data rate, independent of the other lanes. The lanes are switched independently using the four select pins, SEL[3:0]; each select pin controls one lane of the port. The AD8159 has low latency and very low lane-to-lane skew.

The main application of the AD8159 is to support redundancy on both the backplane side and the line interface side of a serial link. The device has unicast and bicast capability; therefore, it can be configured to support either 1 + 1 or 1:1 redundancy.

The AD8159 supports reversing of the output and input pins on one of its ports, which helps to connect two ASICs with opposite pinouts.

The AD8159 is also used for testing high speed serial links by duplicating incoming data and sending it to the destination port and to the test equipment simultaneously.

Applications

  • Low cost redundancy switch
  • SONET OC-48/SDH-16 and lower data rates
  • XAUI (10 gigabit Ethernet) over backplane
  • Gigabit Ethernet over backplane
  • Fibre Channel 1.06 Gbps and 2.125 Gbps over backplane
  • InfiniBand® over backplane
  • PCI Express (PCIe) over backplane

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Tools & Simulations

SPICE Models

Design Tools

ADIsimPE Linear and Mixed-Signal Circuit Simulator – Personal Edition

ADIsimPE, which is powered by SIMetrix/SIMPLIS, is a circuit simulation suite optimized for the design and development of analog and mixed signal circuits. SIMetrix mode is ideal for the simulation of general non-switching circuits. It provides full Pspice compatibility for use with industry-standard SPICE models. SIMPLIS (SIMulation Piecewise-Linear System) mode simulates the operation of switching circuits with vastly improved robustness, speed, and accuracy compared to standard SPICE. It is particularly useful for switching power supply, PLLs, and ADC/DAC applications.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

PCN-PDN Information

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.