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F1455

TX RF VGA with KLIN Feature

Datasheet

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  • 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
  • < 2dB 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
  • 6mm x 6mm, 28-QFN package

The F1455 is a high-gain/high-linearity 1400MHz to 2300MHz TX variable gain amplifier (VGA) 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. It is packaged in a 6mm x 6mm, 28-QFN with 50Ω single-ended RF input and RF output impedances for ease of integration into the signal path.

Design & Development (Boards and Kit)

Board Image

Evaluation Board for F1455 TX VGA

The F1455EVBK is a fully populated evaluation board which allows the customer to easily evaluate the  F1455 TX RF Digital Variable Gain Amplifier. Attenuation is set using SPI.

The F1455EVS is a complete hardware and software solution that allows customers to digitally control the F1455EVBK with the USB output on a computer. The kit includes the F1455EVBK board, as well as a USB Digital Control Board and interface cables. The software, guides , and instructional videos are available for download / viewing on this page.

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F1455NKGK

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F1455NKGK8

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