Digital Step Attenuator for mobile frequency bands

Digital Step Attenuator Module

Ranatec offers digital attenuator modules and systems hat cover all mobile frequency bands and gives a calibrated attenuation range of more than 90 dB in steps of 0.25 dB, and offers both serial and parallel control logic. Our digital step attenuators modules are easy to integrate into any test setup to use for simulating transmission loss, signal fading, cross talk, or to calibrate power levels. Their wide range and fine granularity make them ideal for tight control over signal strength in demanding test environments.

Digital Step Attenuator Module

Features

  • Controlled via parallell interface
  • Attenuation range of more than 90 dB
  • Attenuation step size of 0.25 dB

Specification

Frequency range 50 MHz-6 GHz
Attenuation range 0-95.25 dB
Attenuation step size 0.25 dB
Insertion loss 3.9 dB typ. @ 50 MHz-2.2 GHz
5.1 dB typ. @ 2.2 GHz-4 GHz
7.2 dB typ. @ 4-6 GHz
Return loss 20 dB typ. @ 50 MHz-4 GHz
15 dB typ. @ 4-6 GHz
RF input power, CW +28 dBm max
DC supply 2.3-3.3 V
Supply current 1.7 mA max
RF connectors SMA jack
Control interface connector Shrouded header 2×7, 2.54 mm pitch
Operating temperature -40 -+105C
Outer material Aluminum
Dimensions 52x79x12.4 mm
Weight 65 g
Digital Step Attenuator for mobile frequency bands

Ordering

RI 4410 Digital Step Attenuator

Overview

The RI 4410 is a compact, high-accuracy digital step attenuator designed for precise control of RF signal levels. It offers a wide, calibrated attenuation range of over 90 dB in fine 0.25 dB steps and supports all mobile frequency bands. The RI 4410 digital attenuator module is easy to integrate, with both serial and parallel control logic available.

Ideal for wireless test automation or live RF systems, the RI 4410 is used to simulate transmission loss, signal fading, cross talk, and to calibrate power levels. It’s small, user-friendly, and built to deliver reliable performance across a broad range of applications.

FAQ – Digital Attenuator

A digital attenuator is an RF device that adjusts signal strength using digital control. It lets users set and vary attenuation levels electronically, making it ideal for automated test systems and RF signal chains. Digital attenuators are widely used in wireless, telecom, and radar applications.

A digital step attenuator (DSA) is a type of digital attenuator that adjusts signal strength in fixed increments—called steps. These steps can be adjusted for your needs, allowing for fine control. Digital step attenuator solutions are commonly used in automated test setups, wireless testing, and communication systems where repeatable, accurate signal level control is critical.

A digital attenuator reduces signal power without distorting the waveform. It protects sensitive components, simulates signal loss, and helps calibrate systems by setting precise signal levels. In RF testing, digital step attenuators solutions are often used to manage dynamic range to avoid overloading.

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