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ADN8102:  X-stream™ 3.75 Gbps Quad Bidirectional CX4 Equalizer

The ADN8102 is a quad bidirectional CX4 cable/backplane equalizer with eight differential PECL-/CML-compatible inputs with programmable equalization and eight differential CML outputs with programmable output levels and pre-emphasis or de-emphasis. The operation of this device is optimized for NRZ data at rates up to 3.75 Gbps.

The receive inputs provide programmable equalization to ...More

ADN8102:  X-stream™ 3.75 Gbps Quad Bidirectional CX4 Equalizer

Product Description

The ADN8102 is a quad bidirectional CX4 cable/backplane equalizer with eight differential PECL-/CML-compatible inputs with programmable equalization and eight differential CML outputs with programmable output levels and pre-emphasis or de-emphasis. The operation of this device is optimized for NRZ data at rates up to 3.75 Gbps.

The receive inputs provide programmable equalization to compensate for up to 30 meters of CX4 cable (24 AWG) or 40 inches of FR4, and programmable pre-emphasis to compensate for up to 15 meters of CX4 cable (24 AWG) or 40 inches of FR4 at 3.75 Gbps. Each channel also provides programmable loss-of-signal detection and loopback capability for system testing and debugging.

The ADN8102 is controlled through toggle pins, an I2C® control interface that provides more flexible control, or a combination of both. Every channel implements an asynchronous path supporting dc to 3.75 Gbps NRZ data, fully independent of other channels. The ADN8102 has low latency and very low channel-to-channel skew.

The main application for the ADN8102 is to support switching in chassis-to-chassis applications over CX4 or InfiniBand® cables.

The ADN8102 is packaged in a 9 mm × 9 mm 64-lead LFCSP (QFN) package and operates from −40°C to +85°C.

Applications
  • 10GBase-CX4
  • HiGig™
  • InfiniBand
  • 1×, 2× Fibre Channel
  • XAUI
  • Gigabit Ethernet over backplane or cable
  • CPRI™
  • 50 Ω cables

    • Data Sheet, Rev. A, 8/08

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    • Optimized for dc to 3.75 Gbps data
    • Programmable input equalization
      Up to 22 dB boost at 1.875 GHz
      Compensates up to 30 m of CX4 cable up to 3.75 Gbps
      Compensates up to 40 in of FR4 up to 3.75 Gbps
    • Programmable output pre-emphasis/de-emphasis
      Up to 12 dB boost at 1.875 GHz (3.75 Gbps)
      Compensates up to 15 m of CX4 cable up to 3.75 Gbps
      Compensates up to 40 in of FR4 up to 3.75 Gbps
    • Flexible 1.8 V to 3.3 V core supply
    • Per lane P/N pair inversion for routing ease
    • Low power: 125 mW/channel up to 3.75 Gbps
    • DC- or ac-coupled differential CML inputs
    • Programmable CML output levels
    • 50 Ω on-chip termination
    • Temperature range operation: −40°C to +85°C
    • Supports 8b10b, scrambled, or uncoded NRZ data
    • I2C control interface
    • 64-lead LFSCP (QFN) package
    • Type: 4 x 4
    • Voltage Supply Level: CML
    • Supply Current : 586mA
    • Prop Delay (ps): 1000ps
    • Output Rise/Fall (ps): 75ps
    • Control Interface: I2C

    Functional Block Diagram for ADN8102

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    arrow View Full Interactive Product Selection Table
    Part# Type Data Rate (Gbps) Pos Supply Supply Current Prop Delay (ps) Input Swing (mV p-p) Output Rise/Fall (ps) Price* (1000-4999)
    AD8150 33 x 17 1.5 +3.3V to +5V 400 650 200-1000 100 $79.95
    AD8151 33 x 17 3.2 +3.3V to +5V 425 650 200-1000 100 $90.07
    AD8152 34 x 34 3.2 +2.5V to +3.3V 800 660 50-1000 100 $140.67
    AD8153 2:1/1:2 Mux-deMux 3.2 +3V to +3.6V 31 640 200-2000 85 $5.52
    AD8155 2:1/1:2 Mux-deMux 6.5 +1.8V to +3.3V 850 700 200-2000 62 $16.95
    AD8156 4 x 4 6.25 +3V to +3.6V 120 1000 200-2000 75 $13.11
    AD8158 4 x 2:1/1:2 Mux-deMux 6.5 +1.8V to +3.3V 850 700 200-2000 62 $19.18
    AD8159 4 x 2:1/1:2 Mux-deMux 3.2 +3V to +3.6V 320 600 200-2000 100 $12.09
    ADN4600 8 x 8 4.25 +1.8V to +3.3V 565 1000 300-2000 75 $24.95
    ADN8102 4 x 4 3.75 +1.8V to +3.3V 586 1000 300-2000 75 $14.62
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    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.