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F1451 - TX Digital VGA

Description

The F1451 is a High Gain / High Linearity 700 MHz to 1100 MHz TX Digital Variable Gain Amplifier used in transmitter applications.

The F1451 TX DVGA provides 32 dB maximum gain with +41.5 dBm OIP3 and 3.6 dB noise figure.

Features

  • Broadband 700 MHz to 1100 MHz.
  • 32 dB max gain.
  • 3.6 dB NF @ max gain (900 MHz).
  • 29.5 dB total gain control range, 0.5 dB step.
  • < 2 dB overshoot between gain transitions.
  • Maintains flat +23 dBm OP1dB for more than 13 dB gain adjustment range.
  • Maintains flat +41 dBm OIP3 for more than 15 dB gain adjustment range.
  • SPI interface for DSA control.
  • Single 5 V supply voltage.
  • ICC = 185 mA.
  • Up to +105 °C TCASE operating temperature.
  • 50 Ω input a.

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Datasheet preview – F1451

Datasheet Details

Part number F1451
Manufacturer IDT
File Size 6.91 MB
Description TX Digital VGA
Datasheet download datasheet F1451 Datasheet
Additional preview pages of the F1451 datasheet.

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Full PDF Text Transcription

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T TX Digital VGA 700 MHz to 1100 MHz F1451 Datasheet Description The F1451 is a High Gain / High Linearity 700 MHz to 1100 MHz TX Digital Variable Gain Amplifier used in transmitter applications. The F1451 TX DVGA provides 32 dB maximum gain with +41.5 dBm OIP3 and 3.6 dB noise figure. Up to 29.5 dB gain control is achieved using the combination of a digital step attenuator (DSA) and a KLINTM RF Digital Gain Amplifier. This device uses a single 5 V supply and 185 mA of ICC. This device is packaged in a 6 mm x 6 mm, 28-pin QFN with 50 Ω single-ended RF input and RF output impedances for ease of integration into the signal-path. Competitive Advantage In typical Base Stations, RF VGAs are used in the TX traffic paths to drive the transmit power amplifier.
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