The F1455 is a High-Gain / High-Linearity 1400MHz to 2300MHz TX Variable Gain Amplifier used in transmitter applications. The F1455 TX VGA provides 32dB maximum gain with +39dBm OIP3 and 4dB noise figure. Up to 29.5dB gain control is achieved using the combination of a digital step attenuator (DSA) plus KLIN™ RF variable gain amplifier gain adjustment. This device uses a single 5V supply and 216mA of ICC. This device is packaged in a 6 x 6 mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.


  • Broadband 1400MHz to 2300MHz
  • 32dB max gain
  • 4dB NF at max gain (2000MHz)
  • KLIN™ amplifier with 6dB gain range
  • DSA: 23.5dB range
  • 29.5dB total gain control range, 0.5dB step
  • < 2 dB overshoot between major gain transitions such as 15.5dB to 16dB atten
  • +40dBm OIP3
  • Maintains +23.5dBm output P1dB over first 6dB gain adjustment range
  • SPI interface for DSA control
  • Single 5V supply voltage
  • ICC = 216mA
  • Up to +105°C TCASE operating temperature
  • 50Ω input and output impedance
  • Standby for power savings
  • Pin compatible 700MHz and 2700MHz versions
  • 6 x 6 mm, 28-QFN package

Product Options

下单器件 ID Part Status Pkg. Code Pkg. Type Lead Count (#) Temp. Grade Pb (Lead) Free Carrier Type Buy Sample
F1455NKGK Active NKG28 VFQFPN 28 K Yes Tray
F1455NKGK8 Active NKG28 VFQFPN 28 K Yes Reel


文档标题 他の言語 文档类型 文档格式 文件大小
F1455 Datasheet REV1 Datasheet PDF 2.77 MB
应用指南 &白皮书
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 2.91 MB
PCN#A1709-04 Alternate Assembly Location at ASECL on Select Package Product Change Notice PDF 32 KB
RF Products Family ( 简体中文) English, 日本語 Overview PDF 1.68 MB
IDT Products for Radio Applications 日本語 Product Brief PDF 2.34 MB


文档标题 他の言語 文档类型 文档格式 文件大小
IBIS model for F1455 Model - IBIS ZIP 0 KB
F1455 S-Parameters Model - S-Parameter ZIP 1.27 MB
RF Digital Control Software Installer Software Tool ZIP 169.81 MB

Evaluation Boards

Part Number Title 升序排列
F1455EVBK Evaluation Board for F1455 TX VGA