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F2923 Block Diagram
F2923 Pinout
F2923 Control Pin Interface


Constant Impedance K|z| SP2T RF Switch

The F2923 is a low insertion loss 50Ω SP2T (SPDT) absorptive RF Switch designed for a multitude of wireless and other RF applications.  This device covers a broad frequency range from 300 kHz to 8000 MHz.  In addition to providing low insertion loss, industry leading isolation at 2 GHz and excellent linearity, the F2923 also includes a patent pending constant impedance (K|z|) feature. 


  • Constant Impedance K|z| during transition
  • Very low insertion loss: 0.48 dB @ 2 GHz
  • High Input IP3: 66 dB @ 2 GHz
  • RF1 / RF2 to RF_Com Isolation: 74 dB @ 2 GHz
  • 1-pin or 2-pin device control option
  • Low DC current: 127 µA using 3.3 V logic
  • Supports 1.8 V and 3.3 V control logic
  • Extended temperature: -55 °C to +105 °C
  • 4 mm x 4 mm, 20-pin TQFN package
  • Industry standard footprint and pin compatible with F2912

Product Specification

ArchitectureFrequency Range (MHz)Advanced FeaturesInput IP3 (dBm)Loss (dB)Isolation (dB)Supply Voltage (V)Gain (dB)
SP2T0.00 - 8000.00Kz, High Reliability660.48743.10 - 3.50-0.48

Product Options

Orderable Part IDPart StatusPkg. CodePkg. TypeLead Count (#)Temp. GradePb (Lead) FreeCarrier TypeSample & Buy
F2923NCGIActiveNCG20VFQFPN20IYesTrayCheck Availability
F2923NCGI8ActiveNCG20VFQFPN20IYesReelCheck Availability


Technical Documentation

Title Other Languages Type Format File Size Datesort icon
Datasheets & Errata
F2923 Datasheet REV0 Datasheet PDF 2.06 MB Nov 24, 2015
RF Switches Family Overview 简体中文, 日本語 Overview PDF 573 KB Nov 30, 2016
IDT Products for Radio Applications 日本語 Product Brief PDF 4.65 MB Aug 12, 2015

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