概要

Description

The F0472B is an integrated dual-path RF front-end consisting of an RF switch and two gain stages with 6dB gain control used in the analog front-end receiver of an Active Antenna System (AAS). Supporting frequencies from 2.3GHz to 2.7GHz, the F0472B provides 34dB gain with +15dBm OP1dB, and 1.2dB noise figure (NF). Gain is reduced 6dB in a single step with a maximum settling time of 35ns. The device uses a single 3.3V supply and 130mA of IDD.

Offered in a 5 × 5 mm, 32-pin QFN package with 50Ω input and output amplifier impedances, the F0472B integrates into the signal path with the greatest of ease.

特長

  • Gain
    • 34dB typical in High Gain Mode
    • 28dB typical in Low Gain Mode
  • 1.2dB typical NF
  • OP1dB 
    • +15dBm typical in High Gain Mode 
    • +14dBm typical in Low Gain Mode
  • 50Ω single-ended input / output amplifier impedances
  • IDD = 130mA
  • Independent Standby Mode for power savings
  • Supply voltage: +3.15V to +3.45V
  • 5 × 5  mm, 32-pin package
  • -40°C to +105°C exposed pad operating temperature range

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IDT RF Product Benefits Overview

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Glitch-free technology essentially eliminates the transient overshoot that can occur during mSv attenuation state transitions of standard digital step attenuators. Flat-noise technology maintains near constant noise performance [inaudible 00:00:48] reduced in our variable gain amplifiers, thus optimizing system level signal-to-noise performance. Zero-distortion technology practically eliminates intermodulation distortion in our RF mixers and amplifiers, enhancing the system's quality of service. Kz refers to constant impedance technology, which has implemented a new line of RF switches that allows 'hot switching' in TDD systems.

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