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F1977 Datasheet Digital Step Attenuator

Manufacturer: IDT

Overview: 7-Bit, 75 Ω, Digital Step Attenuator GENERAL.

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Datasheet Details

Part number F1977
Manufacturer IDT
File Size 5.36 MB
Description Digital Step Attenuator
Download F1977 Download (PDF)

General Description

This document describes the specification for the F1977 Digital Step Attenuator.

The F1977 is part of a family of Glitch-FreeTM DSAs optimized for the demanding requirements of CATV and Satellite systems.

These devices are offered in a compact 5 mm x 5 mm 32 pin QFN package with 75 Ω impedances for ease of integration.

Key Features

  • Serial & 7 bit Parallel Interface.
  • 31.75 dB Control Range.
  • 0.25 dB step.
  • Glitch-FreeTM for low transient overshoot.
  • Low Insertion Loss: 1.4 dB @ 1 GHz.
  • Ultra linear IIP3: +64 dBm.
  • Attenuation Error: -0.1 dB @ 1 GHz.
  • Stable Attenuator Accuracy over temperature.
  • Bi-directional RF use.
  • 3.00 V to 5.25 V supply.
  • 1.8 V or 3.3 V control logic.
  • Low Current Consumption: 325 µA typical.
  • -4.

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