Diodes Incorporated
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ZLNB254 (Obsolete)

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The ZLNB254 is a dual channel DiSEqC™ interface for Satellite Low Noise Blocks (LNB’s) and distribution systems. Providing two accurate DiSEqC™ detectors the ZLNB254 converts the DiSEqC™ signals into logic level representations enabling reliable and easy detection for a microprocessor. Packaged in a small footprint DFN and only requiring two external components per channel the complete solution is cost effective and requires minimal PCB space.


  • Dual Channel DiSEqC™ interface
  • Reliable and accurate detectors
  • High channel isolation
  • Compatible with Eutelsat and US specifications
  • Simple and easy to design in.
  • Outputs compatible with LSTTL and CMOS loads
  • Operates over a wide supply voltage
  • Temperature compensated
  • Application(s)

  • DiSEqC™ controlled LNB’s
  • Satellite distribution systems
  • Mono Block LNB’s
  • DiSEqC Actuators
  • Set-Top Boxes
  • Satellite Test Equipment
  • AC satellite control signal detection
  • Product Specifications

    Product Parameters

    FTONE 22
    Number of DiSEqC Detectors 2
    Number of Rec Detect No
    Number of Tone Detectors 2
    Number of Voltage Detectors -
    Output Ports Type Active Low
    VCC (V) 3
    VPOL -

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    RoHS CofC