GENERAL DESCRIPTION
The ADL5382 is a broadband quadrature I-Q demodulator that covers an RF input frequency range from 700 MHz to 2.7 GHz. With a NF = 14 dB, IP1dB = 14.7 dBm, and IIP3 = 33.5 dBm at 900 MHz, the ADL5382 demodulator offers outstanding dynamic range suitable for the demanding infrastructure direct-conversion requirements. The differential RF inputs provide a well-behaved broadband input impedance of 50 Ω and are best driven from a 1:1 balun for optimum performance.
FEATURES
Operating RF and LO frequency: 700 MHz to 2.7 GHz
Input IP3
33.5 dBm @ 900 MHz
30.5 dBm @1900 MHz
Input IP2: >70 dBm @ 900 MHz
Input P1dB: 14.7 dBm @ 900 MHz
Noise figure (NF)
14.0 dB @ 900 MHz
15.6 dB @ 1900 MHz
Voltage conversion gain: ~4 dB
Quadrature demodulation accuracy
Phase accuracy: ~0.2°
Amplitude balance: ~0.05 dB
Demodulation bandwidth: ~370 MHz
Baseband I/Q drive: 2 V p-p into 200 Ω
Single 5 V supply
APPLICATIONS
Cellular W-CDMA/CDMA/CDMA2000/GSM
Microwave point-to-(multi)point radios
Broadband wireless and WiMAX