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AD8348 Dataheets PDF



Part Number AD8348
Manufacturers Analog Devices
Logo Analog Devices
Description 50-1000 MHz Quadrature Demodulator
Datasheet AD8348 DatasheetAD8348 Datasheet (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 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 V Power.

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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 V Power-down mode Compact, 28-lead TSSOP package APPLICATIONS QAM/QPSK demodulator W-CDMA/CDMA/GSM/NADC Wireless local loop LMDS 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. The baseband amplifiers are designed to interface directly .


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