The F2255 is a low insertion loss Voltage Variable RF Attenuator (VVA) covers a broad frequency range from 1 MHz to 3000 MHz.  In addition to providing low insertion loss, the F2255 provides high linearity and low retrun loss performance over entire frequency, voltage control and attenuation ranges. The device uses a single positive supply voltage of 3.15 V to 5.25 V.  Other features include the VMODE pin allowing either positive or negative voltage control slope vs attenuation and multi-directional operation meaning the RF input can be applied to either RF1 or RF2 pins.  This device has a wide control voltage range using either positive or negative control voltage slope.

Features

  • Low Insertion Loss: 1.1 dB @ 500 MHz
  • Typical / Min IIP3:  60 dBm / 44 dBm
  • Typical / Min  IIP2:  98 dBm / 74 dBm
  • 34.6 dB Attenuation Range 
  • Bi-directional RF ports
  • +36 dBm Input P1 dB compression
  • VMODE pin allows either positive or negative attenuation control response
  • Linear-in-dB attenuation characteristic
  • Supply voltage: 3.15 V to 5.25 V
  • VCTRL range: 0 to 3.60 V (when Vdd = 3.9 to 5.25 V, 0 to (Vdd-0.3 V) (when Vdd = 3.15 to 3.90 V)
  • +105°C max operating temperature
  • 3x3, 16-pin TQFN package
 

Product Options

Orderable Part ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F2255NLGK Active NLG16P2 VFQFPN 16 K Yes Tray
Availability
F2255NLGK8 Active NLG16P2 VFQFPN 16 K Yes Reel
Availability

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
F2255 Datasheet Datasheet PDF 2.22 MB
PCNs & PDNs
PCN# : A1809-04 Add Alternate Assembly Location for QFN packages Product Change Notice PDF 36 KB
PCN# : TB1701-02 Datasheet limit change Product Change Notice PDF 88 KB
PCN# : TB1507-01 Moisture Sensitive Level Change from MSL 3 to MSL 1 on Select Products Product Change Notice PDF 45 KB
PCN# : A1402-04 Add Alternate Assembly & Test Product Change Notice PDF 45 KB
Downloads
F2255 S-Parameters Model - S-Parameter ZIP 16.53 MB
Other
Voltage Variable Attenuators Overview Overview PDF 95 KB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB

Boards & Kits

Part Number Title Type Company
F2255EVBI Evaluation Board for F2255 Voltage Variable RF Attenuator