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AD8348 - 50-1000 MHz Quadrature Demodulator

General Description

The AD8348 is a broadband quadrature demodulator with an integrated intermediate frequency (IF), variable gain amplifier (VGA), and integrated baseband amplifiers.

It is suitable for use in communications receivers, performing quadrature demodulation from IF directly to baseband frequencies.

Key Features

  • Integrated I/Q demodulator with IF VGA amplifier Operating IF frequency 50 MHz to 1000 MHz (3 dB IF BW of 500 MHz driven from RS = 200 Ω) Demodulation bandwidth 75 MHz Linear-in-decibel AGC range 44 dB Third-order intercept IIP3 +28 dBm @ minimum gain (FIF = 380 MHz) IIP3.
  • 8 dBm @ maximum gain (FIF = 380 MHz) Quadrature demodulation accuracy Phase accuracy 0.5° Amplitude balance 0.25 dB Noise figure 11 dB @ maximum gain (FIF = 380 MHz) LO input.
  • 10 dBm Single supply 2.7 V to 5.5.

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Full PDF Text Transcription for AD8348 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for AD8348. For precise diagrams, and layout, please refer to the original PDF.

FEATURES Integrated I/Q demodulator with IF VGA amplifier Operating IF frequency 50 MHz to 1000 MHz (3 dB IF BW of 500 MHz driven from RS = 200 Ω) Demodulation bandwidth ...

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(3 dB IF BW of 500 MHz driven from RS = 200 Ω) Demodulation bandwidth 75 MHz Linear-in-decibel AGC range 44 dB Third-order intercept IIP3 +28 dBm @ minimum gain (FIF = 380 MHz) IIP3 −8 dBm @ maximum gain (FIF = 380 MHz) Quadrature demodulation accuracy Phase accuracy 0.5° Amplitude balance 0.25 dB Noise figure 11 dB @ maximum gain (FIF = 380 MHz) LO input −10 dBm Single supply 2.7 V to 5.

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