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.
In addition to offering excellent linearity and noise performance,
the MAX2022 also yields a high level of component
integration. This device includes two matched
passive mixers for modulating in-phase and quadrature
signals, three LO mixer amplifier drivers, and an LO
quadrature splitter. On-chip baluns are also integrated to
allow for single-ended RF and LO connections. As an
added feature, the baseband inputs have been matched
to allow for direct interfacing to the transmit DAC, thereby
eliminating the need for costly I/Q buffer amplifiers.
The MAX2022 operates from a single +5V supply. It is
available in a compact 36-pin thin QFN package (6mm
x 6mm) with an exposed paddle. Electrical performance
is guaranteed over the extended -40°C to
+85°C temperature range.
Key Features
Applications/Uses
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
Digital and Spread-Spectrum Communication Systems
Fixed Broadband Wireless Access
Microwave Links
Military Systems
PHS/PAS Base Stations
Predistortion Transmitters
Private Mobile Radios (PMRs)
Single and Multicarrier cdmaOne™ and cdma2000® Base Stations
Single and Multicarrier DCS 1800/PCS 1900 EDGE Base Stations
Notes: *This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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