Data Sheet

LDA-602Q

LDA-602Q
Lab Brick® 4 Channel Digital Attenuator
Features/Benefits> Reliable and Repeatable solid state digitalattenuation> Includes GUI, Windows and Linux SDK,LabVIEW driver> Programmable attenuation ramp and fading
profiles> Operate multiple devices directly from a PC
or self powered hub> Easily portable USB powered device> Sized to fit into a single rack unit for ATE
applications

Applications> WiMAX, 3G, 4G, 5G, LTE, DVB, Microwave
Radio Fading Simulators> Engineering/Production Test Labs
> Automated Test Equipment (ATE)

OverviewThe Lab Brick LDA series of Digital Attenuators bring affordability, functionality, reliability andsimplicity to the microwave test bench. The LDA products range from 6 MHz to 20 GHz with
input level tolerance to 2 Watts and step size as small as 0.1 dB.
Lab Bricks use a native USB HID interface to avoid the difficulties inherent in using older serialor 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 LDA-602Q Digital Attenuator is a bidirectional, 4 channel, 50 Ohm step attenuator. TheLDA-602Q offers 120 dB of control range from 200 to 6000 MHz with an amazing step size of0.1 dB. The attenuators are easily programmable for fixed attenuation, swept attenuation ramps
and fading profiles directly from the included Graphical User Interface (GUI). Alternatively, forusers wishing to develop their own interface, Vaunix supplies LabVIEW drivers, Windows API
DLL files and a Linux driver with instruction manuals.

Vaunix Technology Corporation
7 New Pasture Road
Newburyport, MA 01950
978-662-7839
www.Vaunix.com

Revision A
1/11/18

Data Sheet
Specifications
Parameter

LDA-602Q
Test Conditions/Notes

Frequency Range
Impedance
Attenuation Range
Step Size
Insertion Loss

Attenuation Accuracy

Min

Typ200Max Units
6000

501200.1< 2 GHz< 4 GHz< 6 GHz< 30 dB<60 dB<90 dB<110 dB<120 dB

Switching Speed
Maximum Input Level
Input IP3
VSWR
Operating ModesMHzOhmsdBdB

4.5
6.5
8.5
0.2
0.4
0.6
1.0
2.015+28+55
1.3:1

5.5
7.5
9.5
0.5
1.5
2.0
2.5
4.5

+5.0
65

+5.25

VDC
mA

+50
<95C%

dBdBusdBm
dBm

Manual Attenuation Control
Swept Attenuation – uni/bi directional– one time/repeat
ProfilePower Requirements

Environmental

From the USB connection+4.75

Operating Temperature
Relative Humidity (non-condensing)-10

Dimensions

7.3 x 2.5 x 0.95
185.4 x 63.5 x 24.1
1.3
0.6

Mechanical

WeightPhysical Connections
Power and Control
RF Connectors
Mounting : Counter-bore holes

Vaunix Technology Corporation
7 New Pasture RoadNewburyport, MA 01950
978-662-7839
www.Vaunix.com

Revision A
1/11/18

USB Type B – female
SMA – female (x8)
#6 Socket Head (x2)

In.
mm.
lb.
Kg

Data Sheet

LDA-602Q

GraphsVaunix Technology Corporation
7 New Pasture Road
Newburyport, MA 01950
978-662-7839
www.Vaunix.com

Revision A
1/11/18

Data Sheet

LDA-602Q

Mechanical Outline

Vaunix Technology Corporation
7 New Pasture Road
Newburyport, MA 01950
978-662-7839
www.Vaunix.com

Revision A
1/11/18