Overview

Description

The F2955 is a high reliability, low insertion loss, 50Ω SP5T absorptive RF switch designed for a multitude of RF applications, including wireless communications. This device covers a broad frequency range from 50MHz to 8000MHz. In addition to providing low insertion loss, the F2955 also delivers excellent linearity and isolation performance while providing a 50Ω termination to the unused RF input ports. The F2955 also includes a patent-pending constant impedance (K|z|™) feature. K|z| improves system hot switching ruggedness, minimizes LO pulling in VCOs, and reduces phase and amplitude variations in distribution networks. It is also ideal for dynamic switching/selection between two or more amplifiers while avoiding damage to upstream/downstream sensitive devices, such as power amplifiers (PAs) and analog-to-digital converters (ADCs).

The F2955 uses a single positive supply voltage supporting three logic control pins using either 3.3V or 1.8V control logic. Connecting a negative voltage to pin 20 disables the internal negative voltage generator and becomes the negative supply.

Features

  • Five symmetric, absorptive RF ports
  • High isolation: 49dB at 4000MHz
  • Low insertion loss: 1.1dB at 4000MHz
  • High linearity:
    • IIP2 of 114dBm at 2000MHz
    • IIP3 of 60.5dBm at 4000MHz
  • High operating power handling:
    • 33dBm CW on selected RF port
    • 27dBm on terminated ports
  • Single 2.7V to 5.5V supply voltage
  • External negative supply option
  • 3.3V and 1.8V compatible control logic
  • Operating temperature: -40°C to +105°C
  • 4 × 4 mm 24-VFQFPN package
  • Pin compatible with competitors

Comparison

Applications

Documentation

Type Title Date
Datasheet PDF 1.39 MB
Guide PDF 2.24 MB
Product Change Notice PDF 768 KB
Product Brief PDF 438 KB
Application Brief PDF 686 KB
5 items

Design & Development

Boards & Kits

Boards & Kits

Models

F2972 and F2976 - High-Performance SPDT Reflective RF Switches

A brief video overview of IDT's F2972 & F2976 high-performance single-pole, double throw reflective (SPDT, SP2T) RF switches. They operate from 5MHz to 10GHz, offering an industry-leading mix of low-insertion loss, high isolation, low distortion and high power handling.

The IDT devices are specified for use in either 50 or 75 ohm systems, offering versatility for a wide range of markets and applications, including, BTS wireless communications equipment, DOCSIS 3.1 CATV applications, drones, and general purpose consumer products.

Features include:

  • Small footprint
  • Wide operating frequency range
  • Low insertion loss
  • Excellent linearity
  • High isolation
  • High power handling

To request samples, download documentation or learn more, visit: www.IDT.com/F2972 or www.IDT.com/F2976.