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