General Description
The MAX2022 low-noise, high-linearity, direct upconversion quadrature modulator is designed for single and multicarrier 1800MHz to 2200MHz UMTS/WCDMA, cdma2000®, and DCS/PCS base-station applications. Direct upconversion architectures are advantageous since they significantly reduce transmitter cost, part count, and power consumption as compared to traditional IF-based double upconversion systems.

Features
♦ 1500MHz to 2500MHz RF Frequency Range
♦ Meets Four-Carrier WCDMA 65dBc ACLR
♦ +23.3dBm Typical OIP3
♦ +51.5dBm Typical OIP2
♦ 45.7dBc Typical Sideband Suppression
♦ -40dBm Typical LO Leakage
♦ -173.2dBm/Hz Typical Output Noise, Eliminating
   the Need for an RF Output Filter
♦ Broadband Baseband Input
♦ DC-Coupled Input Provides for Direct Launch
   DAC Interface, Eliminating the Need for Costly I/Q
   Buffer Amplifiers

Applications
   Single and Multicarrier WCDMA/UMTS Base Stations
   Single and Multicarrier cdmaOne™ and cdma2000 Base Stations
   Single and Multicarrier DCS 1800/PCS 1900 EDGE Base Stations
   PHS/PAS Base Stations
   Predistortion Transmitters
   Fixed Broadband Wireless Access
   Wireless Local Loop
   Private Mobile Radio
   Military Systems
   Microwave Links
   Digital and Spread-Spectrum Communication Systems