Constant Impedance K|z| SPST RF Switch 30 MHz to 8000 MHz

The F2910 is a rugged, low insertion loss, 50 Ω SPST absorptive RF switch designed for a multitude of wireless and other RF applications.  This device covers a broad frequency range from 30 MHz to 8000 MHz.  In addition to providing low insertion loss, the F2910 also delivers excellent linearity and isolation performance while providing a 50 Ω termination to the RF2 port when isolated.  This product also incorporates IDT’s new Constant Impedance, Kz, feature. The Kz feature maintains a near constant impedance when switching between RF ports preserving a higher RF port return loss. Standard switches without Kz create a large Voltage Standing Wave Ration (VSWR) transient when switching RF paths because the impedance of the switch in not well controlled during the switching event due to poor RF port return loss. These VSWR transients can potentially reduce the ruggedness of the switch itself and can also subject downstream components to large voltage stresses reducing ruggedness and degrading overall system performance. IDT’s Kz feature controls the impedance during the switching process minimizing the VSWR transient thereby improving switch ruggedness, reducing voltage stresses on downstream components and improving overall system performance.

Features

  • Single pole, single throw with and absorptive termination on RF2 when isolated
  • Constant Impedance, Kz, feature
  • High performance RF
    • Isolation of 51 dB @ 2000 MHz
    • Insertion Loss of 0.55 dB @ 2000 MHz
  • High continuous RF CW Power Handling @ 85°C
    • Selected RF path: 30 dBm
    • Terminated RF path: 27 dBm
  • High linearity:
    • IIP2 of 118 dBm
    • IIP3 of 65 dBm
  • Single 2.7 V to 5.50 V supply voltage
  • 3.3 V and 1.8 V compatible control logic
  • Operating temperature -55 °C to +105 °C
  • 2 mm × 2 mm 8-pin VFQFP-N package

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Function Carrier Type Buy Sample
F2910NBGP Active NBG8P3 VFQFPN 8 P Yes SPST Abs Switch Cut Tape Availability
F2910NBGP8 Active NBG8P3 VFQFPN 8 P Yes SPST Abs Switch Reel Availability

Technical Documentation

Title Other Languages Type Format File Size Date
Datasheets & Errata
F2910_Datasheet_RevO Datasheet PDF 2.92 MB Aug 25, 2016
Other
RF Switches Family Overview 日本語, 简体中文 Overview PDF 273 KB Oct 30, 2017
The IDT Consumer Products Advantage Overview PDF 4.01 MB Jun 30, 2017
The IDT Automotive Advantage Overview PDF 3.55 MB May 26, 2017
The IDT Communications Products Advantage Overview PDF 2.54 MB Feb 13, 2017
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB Nov 29, 2016
F2910 S-Parameters Model - S-Parameter ZIP 128 KB Nov 28, 2016

Evaluation Boards

Part Number Title Sort ascending
F2910EVBI Evaluation Board for High Reliability SPST Absorptive RF Switch with Kz