LDA-133

RF Variable Attenuator by Vaunix (26 more products)

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The LDA-133 Digital Attenuator from Vaunix is a bidirectional, 50 Ohm step attenuator that operates from 10 MHz to 13 GHz. It has a step size of 0.5 dB and 63 dB of control range with reliable and repeatable solid state digital attenuation. This lab brick can handle up to 2 Watts of input power. The device is compact enough to fit into a single rack unit for ATE applications such as; WiMAX, 3G, 4G, 5G, LTE, Microwave Radio and Satcom Fading Simulators. 

This attenuator is easily programmable for fixed attenuation, swept attenuation ramps and fading profiles directly from the included Graphical User Interface (GUI). Users can also develop their own interface using Vaunix supplied LabVIEW drivers, Windows API DLL files, Linux drivers, Python examples and much more. The power and control connection is from a standard USB type-B female. This single channel digital attenuator is designed to operate reliably from -30 to +70 C.

Product Specifications

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Product Details

  • Part Number
    LDA-133
  • Manufacturer
    Vaunix
  • Description
    USB Programmable Digital Attenuator from 10 MHz to 13 GHz

General Parameters

  • Type
    Digital
  • Applications
    Automated Test Equipment, 3G, 4G, 5G, LTE
  • Frequency
    10 MHz to 13 GHz
  • Channels
    1 Channel
  • Attenuation Range
    Up to 63 dB in 0.5 dB Steps
  • Attenuation Accuracy
    1.5 to 4 dB
  • Power
    0.0158 to 0.158 W
  • Insertion Loss
    6 to 11.5 dB
  • Switching Time
    50 ns
  • Supply Voltage
    4.75 to 5.25 V
  • Interface
    USB
  • Current
    65 mA
  • Impedance
    50 Ohms
  • VSWR
    1.50:1
  • Package Type
    Module with Connectors
  • Dimension
    4.27 x 1.97 x 0.86 Inch (108.5 x 50 x 21.8 mm)
  • Connector
    SMA, SMA - Female
  • Operating Temperature
    -30 to 70 Degree C

Technical Documents