General Description
The MAX2023 low-noise, high-linearity, direct upconversion/downconversion quadrature modulator/demodulator is designed for single and multicarrier 1500MHz to 2300MHz DCS 1800/PCS 1900 EDGE, cdma2000®, WCDMA, and PHS/PAS base-station applications.
FEATUREs
♦ 1500MHz to 2300MHz 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/UMTS 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)