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