General Description

The MAX2023 low-noise, high-linearity, direct upconversion/downconversion quadrature modulator/demodulator is designed for single and multicarrier 1500MHz to 2500MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA/LTE/TD-LTE, and PHS/PAS base-station applications.

Features

♦ 1500MHz to 2500MHz RF Frequency Range

♦ Scalable Power: External Current-Setting

   Resistors Provide Option for Operating Device in

   Reduced-Power/Reduced-Performance Mode

♦ 36-Pin, 6mm x 6mm TQFN Provides High Isolation

   in a Small Package

   Modulator Operation:

♦ Meets GSM Spurious Emission of -75dBc at

   600kHz Offset at POUT = +6dBm

♦ +23.5dBm Typical OIP3

♦ +61dBm Typical OIP2

♦ +16dBm Typical OP1dB

♦ -54dBm Typical LO Leakage

♦ 48dBc Typical Sideband Suppression

♦ -165dBc/Hz Output Noise Density

♦ Broadband Baseband Input of 450MHz Allows a

   Direct Launch DAC Interface, Eliminating the

   Need for Costly I/Q Buffer Amplifiers

♦ DC-Coupled Input Allows Ability for Offset

   Voltage Control

   Demodulator Operation:

♦ +38dBm Typical IIP3

♦ +59dBm Typical IIP2

♦ +30dBm Typical IP1dB

♦ 9.5dB Typical Conversion Loss

♦ 9.6dB Typical NF

♦ 0.025dB Typical I/Q Gain Imbalance

♦ 0.56° I/Q Typical Phase Imbalance

Applications

   Single-Carrier DCS 1800/PCS 1900 EDGE Base Stations

   Single and Multicarrier WCDMA/LTE/TD-LTE Base Stations

   Single and Multicarrier cdmaOne™ and cdma2000 Base Stations

   Predistortion Transmitters and Receivers

   PHS/PAS Base Stations

   Fixed Broadband Wireless Access

   Military Systems

   Microwave Links

   Digital and Spread-Spectrum Communication Systems

   Video-on-Demand (VOD) and DOCSIS Compliant Edge QAM Modulation

   Cable Modem Termination Systems (CMTS)