LDA-203B Digital Attenuator

LDA-203B

1 – 20 GHz USB Programmable Digital Attenuator

The Lab Brick LDA series of Digital Attenuators bring affordability, functionality, reliability, and simplicity to the microwave test bench. The LDA products range from 6 MHz to 40 GHz with an input level tolerance of 2 Watts and step size as small as 0.1 dB.

 

The LDA-203B offers both USB and Ethernet interfaces. The USB port uses a native HID interface to avoid the difficulties inherent in using older serial or IEEE-488 interfaces implemented over USB. As a result, Lab Brick users can get to work faster without having to install kernel level drivers, and Lab Brick devices can be easily used on any system that supports USB HID devices, including low-cost embedded computers using Linux or similar operating systems. The Ethernet interface is configurable for Static IP or DHCP with the ability to assign the HTTP port for extra security.

 

The LDA-203B Digital Attenuator is a bidirectional, 50 Ohm step attenuator. The LDA-203B provides 63 dB of attenuation control over the frequency range of 1 to 20 GHz with a step size of 0.5 dB. The attenuators are easily programmable for fixed attenuation, swept attenuation ramps, and fading profiles directly from the included Graphical User Interface (GUI). Alternatively, Vaunix supplies LabVIEW drivers, Windows API DLL files, macOS DYLIB files, Linux drivers, Python examples, and more for users wishing to develop their own interface.

 

Lead Time: 1 to 2 weeks

LDA-203B

1 – 20 GHz USB Programmable Digital Attenuator

The Lab Brick LDA series of Digital Attenuators bring affordability, functionality, reliability, and simplicity to the microwave test bench. The LDA products range from 6 MHz to 40 GHz with an input level tolerance of 2 Watts and step size as small as 0.1 dB.

 

The LDA-203B offers both USB and Ethernet interfaces. The USB port uses a native HID interface to avoid the difficulties inherent in using older serial or IEEE-488 interfaces implemented over USB. As a result, Lab Brick users can get to work faster without having to install kernel level drivers, and Lab Brick devices can be easily used on any system that supports USB HID devices, including low-cost embedded computers using Linux or similar operating systems. The Ethernet interface is configurable for Static IP or DHCP with the ability to assign the HTTP port for extra security.

 

The LDA-203B Digital Attenuator is a bidirectional, 50 Ohm step attenuator. The LDA-203B provides 63 dB of attenuation control over the frequency range of 1 to 20 GHz with a step size of 0.5 dB. The attenuators are easily programmable for fixed attenuation, swept attenuation ramps, and fading profiles directly from the included Graphical User Interface (GUI). Alternatively, Vaunix supplies LabVIEW drivers, Windows API DLL files, macOS DYLIB files, Linux drivers, Python examples, and more for users wishing to develop their own interface.

 

Lead Time: 1 to 2 weeks

LDA-203B Digital Attenuator
LDA-203B Attenuation Accuracy
LDA-203B Insertion Loss
LDA-203B Return Loss
LDA-203B GUI
LDA-203B GUI
LDA-203B GUI
LDA-203B GUI
LDA-203B Mechanical

Features

  • Reliable and Repeatable solid state digital attenuation
  • Includes Windows GUI and SDK, macOS GUI and SDK, Linux SDK, LabVIEW driver, Python examples and more
  • USB and Ethernet Interfaces
  • Configurable Static IP or DHCP
  • Password protected Ethernet interface
  • Programmable attenuation ramp and fading profiles
  • Operate multiple devices directly from a PC or self powered hub
  • Easily portable USB powered device

Applications

  • WiFi, WiFi6E, 3G, 4G, 5G, LTE, Microwave Radio Fading Simulators
  • Engineering/Production Test Labs
  • Automated Test Equipment (ATE)
LDA-203B
Freq.
Min

(MHz)
Freq.
Max

(MHz)
Impedance
(Ohm)
ChannelsAttenuation
Range

(dB)
Step
Size

(dB)
Max
Input

(dBm)
Insertion
Loss

(dB)
Attenuation
Accuracy

(dB) Typ.
Switching
Speed
Typ.
Connectors
100020000501630.5+206.52350 nsUSB/Ethernet

Accessories

VNX-3m
9' USB Cable Type A/miniB
9
Ships within Within 24 hrs.
VNX-5m
15' USB Cable Type A/miniB
15
Ships within Within 24 hrs.
VNX-1m
3' USB Cable Type A/miniB
3
Ships within Within 24 hrs.
VNX-2m
6' USB Cable Type A/miniB
6
Ships within Within 24 hrs.
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