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Overview

Description

The F1956 Glitch-Free™ Digital Step Attenuator (DSA) offers very high reliability due to its monolithic silicon die construction in a compact 5mm x 5mm 32-pin TQFN package. It has very low insertion loss with minimal distortion and is designed with a 50Ω input and output impedance. Additionally, the device is designed to have high accuracy which improves SNR and/or ACLR by ensuring the system gain is achieved as close to targeted as possible.

Features

  • Serial and 7-bit parallel interface
  • 31.75dB range
  • 0.25dB steps
  • Glitch-Free™: < 2dB transient ringing
  • 500ns settling time
  • Ultra linear +64dBm IP3
  • Low insertion loss < 1.3dB at 4GHz
  • Attenuation error < 0.6dB at 4GHz
  • 3.3V or 5V Supply
  • 1.8V or 3.3V control logic
  • -40 °C to +105 °C operating temperature
  • 5mm x 5mm, 32-pin TQFN package

Comparison

Applications

Documentation

Type Title Date
Datasheet PDF 6.81 MB
Guide PDF 2.24 MB
Guide PDF 2.83 MB
Product Change Notice PDF 105 KB
Product Brief PDF 1.07 MB
Product Change Notice PDF 45 KB
6 items

Design & Development

Software & Tools

Software Downloads

Type Title Date
Software & Tools - Software Log in to Download ZIP 169.81 MB
1 item

Boards & Kits

Models

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Diagram of ECAD Models

Product Options

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