AD8348 PDF Datasheet
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Description
This is 50-1000 MHz Quadrature Demodulator. FEATURES
Integrated I, Q demodulator with IF VGA amplifier Operating IF frequency 50 MH- to 1000 MHz
(3 dB IF BW of 500 MH- driven from RS = 200 Ω) Demodulation bandwidth 75 MH- 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 .