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AS1602

Dual-channel Active Choke for EMI Suppression w/ Integrated ESD Protection

Features Download Datasheet PDF

  • Enables system designers to comply with:

    • CISPR22 and FCC Part 15, Class B requirements for Radiated and Conducted Emissions
    • IEC 61000-4-3 requirements for Radiated and Conducted Immunity, Level 3 or higher
    • IEC 61000-4-2 ESD (Air Discharge) of ±25kV
    • IEC 61000-4-2 ESD (Contact Discharge) of ±12kV
    • Cable Discharge Event (CDE) of ±12kV
  • Provides up to 10dB of additional common mode noise suppression over the frequency of 1MHz to 125MHz when used with Ethernet magnetics

  • Robust built-in ESD suppressors protect the Ethernet PHY and improve system ESD performance

  • JESD22-A114, ESD, HBM of ±8kV

  • Interfaces to standard Ethernet transformers and 10/100/1000 Ethernet PHYs

  • Uses a single standard power rail (3.3V or 2.5V)

  • Open drain output stage that can be biased from 1.8V to 3.3V using transformer center-tap supply as needed based on choice of Ethernet PHY

  • Flow-through routing for ease of board layout

  • Typical power consumption of 90mW

  • Low power mode available

  • Industrial temperature range (-40°C to +85°C)

Applications

  • Ethernet systems requiring additional CM suppression to meet EMC Class B emissions or higher EMI immunity requirements and ESD protection

  • POE and Non-PoE Ethernet systems

  • VoIP Phones, IP Cameras, WAPs, Routers, Switches

  • Set Top Boxes, Networked Printers and Appliances, Desktop and Laptop Computers

Key Electrical Specifications

Vin(Min) Vin(Max) CISPR22 and FCC Part 15 IEC 61000-4-3 requirements for Radiated and
Conducted Immunity
IEC 61000-4-2 ESD (Air Discharge) IEC 61000-4-2 ESD (Contact Discharge) Cable Discharge Event (CDE) Package
2.17V or 3.13V 2.63V or 3.47V  Class B, for Radiated and Conducted Emissions Level 3 or higher ±25kV ±12kV ±12kV QSOP-16L (SOIC narrow)

Typical Application Diagram

AS1602

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