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F1240 - Dual Channel IF Digital Variable Gain Amplifier

Description

The F1240 is a dual channel IF variable gain amplifier for diversity basestation receivers.

Each channel has 31.5dB of total attenuation and a 0.5dB attenuation step.

The device offers significantly better noise and distortion performance than currently available devices.

Features

  • Ideal for systems with high SNR requirements.
  • 20dB typical Maximum Gain.
  • 31.5dB gain control range.
  • 6 bit control via serial or parallel control.
  • 0.5dB Gain Steps.
  • Excellent Noise Figure : 4.0dB.
  • NF degrades just 1.3dB @ 10dB below Max Gain.
  • 200Ω Differential Matched Input.
  • 200Ω Differential Matched Output.
  • No termination resistors required.
  • 10MHz.
  • 500MHz frequency range.
  • Ultra-Linear: OIP3 +47dBm typical.
  • Excellent 2nd H.

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Datasheet Details

Part number F1240
Manufacturer IDT
File Size 15.37 MB
Description Dual Channel IF Digital Variable Gain Amplifier
Datasheet download datasheet F1240 Datasheet

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Full PDF Text Transcription

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Dual Channel IF Digital Variable Gain Amplifier F1240 10MHz to 500MHz Datasheet Description The F1240 is a dual channel IF variable gain amplifier for diversity basestation receivers. Each channel has 31.5dB of total attenuation and a 0.5dB attenuation step. The device offers significantly better noise and distortion performance than currently available devices. It is packaged in a compact 5mm x 5mm QFN with 200Ω differential input and output impedances for ease of integration into the receiver lineup. Competitive Advantage The F1240 IF VGA improves system signal-to-noise (SNR), especially at lower gain settings.
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