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IDTF1956NBGI8 - Digital Step Attenuator

Download the IDTF1956NBGI8 datasheet PDF (IDTF1956 included). The manufacturer datasheet provides complete specifications, pinout details, electrical characteristics, and typical applications for digital step attenuator.

Description

This document describes the specification for the F1956 Digital Step Attenuator.

The F1956 is part of IDT’s Glitch-FreeTM family of DSAs optimized for the demanding requirements of Base Station (BTS) radio cards and numerous other non-BTS applications.

Features

  • Serial & 7-bit Parallel Interface.
  • 31.75 dB Range.
  • 0.25 dB steps.
  • Glitch-FreeTM: low transient overshoot.
  • 500 ns settling time.
  • Ultra linear > 64 dBm IIP3.
  • Low Insertion Loss < 1.7 dB @ 4 GHz.
  • Attenuation error < ±0.2 dB @ 4 GHz.
  • Bi-directional RF use.
  • 3.3 V or 5 V Supply.
  • 1.8 V or 3.3 V control logic.
  • Low Current Consumption: 350 μA typical.
  • -40 °C to +105 °C operating temperature.
  • 5 mm x 5 mm Thin QFN 32 pin package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (IDTF1956-Renesas.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription

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F1956 Datasheet 7-Bit 0.25 dB Wideband Digital Step Attenuator 1 to 6000 MHz GENERAL DESCRIPTION This document describes the specification for the F1956 Digital Step Attenuator. The F1956 is part of IDT’s Glitch-FreeTM family of DSAs optimized for the demanding requirements of Base Station (BTS) radio cards and numerous other non-BTS applications. This device is offered in compact 5 mm x 5 mm 32-pin package with 50  input and output impedance for ease of integration into the radio or RF system. COMPETITIVE ADVANTAGE The F1956 offers very high reliability due to its construction from a monolithic silicon die in a QFN package. The insertion loss is very low with minimal distortion. Additionally the device is designed to have extremely accurate attenuations levels.
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