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F1953 - 6-bit Digital Step Attenuator

Description

This document describes the specification for the IDTF1953 Digital Step Attenuator.

The F1953 is part of a family of Glitch-FreeTM DSAs optimized for the demanding requirements of communications Infrastructure.

Features

  • Glitch-FreeTM, < 0.6 dB transient overshoot.
  • Spurious Free Design.
  • 2.7 to 3.3 V supply.
  • Attenuation Error < 0.5 dB @ 2 GHz.
  • Low Insertion Loss < 1.4 dB @ 2 GHz.
  • Excellent Linearity >+60 dBm IP3I.
  • Fast settling time, < 400 nsec.
  • Serial or Parallel Interface 31.5 dB Range.
  • Stable Integral Non-Linearity over temperature.
  • Low Power Consumption < 200 uA.
  • Integrated DC blocking capacitors.
  • Drop-In replacement.
  • 4x4 mm Thin QFN 20 pin pac.

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Datasheet Details

Part number F1953
Manufacturer Integrated Device Technology
File Size 1.56 MB
Description 6-bit Digital Step Attenuator
Datasheet download datasheet F1953 Datasheet

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    6-bit Digital Step Attenuator GENERAL DESCRIPTION This document describes the specification for the IDTF1953 Digital Step Attenuator. The F1953 is part of a family of Glitch-FreeTM DSAs optimized for the demanding requirements of communications Infrastructure. These devices are offered in a compact 4x4 QFN package with 50 Ω impedances for ease of integration. COMPETITIVE ADVANTAGE Digital step attenuators are used in Receivers and Transmitters to provide gain control. The IDTF1953 is a 6-bit step attenuator optimized for these demanding applications. The silicon design has very low insertion loss and low distortion (> +60 dBm IP3I.) The device has pinpoint accuracy and settles to final attenuation value within 400 nsec.
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