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F2915 Block Diagram
F2915 Pinout
F2915 Control Pin Interface


High Reliability SP5T Absorptive RF Switch

The F2915 is a high reliability, low insertion loss, 50 Ω SP5T absorptive RF switch designed for a wide range of wireless and other RF applications.  This device covers a broad frequency range from 50 MHz to 8000 MHz.  In addition to providing low insertion loss, the F2915 also delivers excellent linearity and isolation performance while providing a 50 Ω termination to the unused RF ports.  The F2915 also includes a patent pending constant impedance (Kz) feature. Kz improves 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 PAs and ADCs.

The F2915 uses a single positive supply voltage supporting three logic control pins using either 3.3 V or 1.8 V control logic. Connecting a negative voltage to pin 20 disables the internal negative voltage generator and becomes the negative supply.


  • Five symmetric broad band, absorptive RF ports
  • Constant Impedance, Kz, feature
  • High performance RF
    • Isolation of 50 dB @ 2700 MHz
    • Insertion Loss of 1.2 dB @ 2700 MHz
  • High continuous RF CW Power Handling
    • Selected RF path: 33dBm
    • Terminated RF path: 27dBm
  • High linearity:
    • IIP2 of 114 dBm
    • IIP3 of 60 dBm
  • Single 2.7 V to 5.50 V supply voltage
  • External Negative Supply Option
  • 3.3 V and 1.8 V compatible control logic
  • Operating temperature -40 °C to +105 °C
  • 4 mm x 4 mm 24 pin QFN package

Product Specification

Frequency Range (MHz)Advanced FeaturesInput IP3 (dBm)Loss (dB)Isolation (dB)Supply Voltage (V)Gain (dB)Pkg. TypeLead Count (#)
50.00 - 8000.00High Reliability, Kz60-0.93622.70 - 5.50-0.90VFQFPN24

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeFunctionCarrier TypeSample & Buy
F2915NBGKActiveNBG24P3VFQFPN24KYesSwitchTrayCheck Availability
F2915NBGK8ActiveNBG24P3VFQFPN24KYesSwitchReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
F2915 Datasheet REV 2 Datasheet PDF 1.73 MB May 11, 2016
RF Switches Product Brief 简体中文, 日本語 Product Brief PDF 856 KB May 18, 2016
F2915 Product Brief REVA Product Brief PDF 249 KB Oct 20, 2015
IDT Products for Radio Applications 日本語 Product Brief PDF 4.65 MB Aug 12, 2015

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