MAX2022 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – High-Dynamic-Range, Direct Upconversion 1500MHz to 2500MHz Quadrature Modulator

19-3572; Rev 0; 4/05
EVALUATION ^{KIT AVAILABLE}
High-Dynamic-Range, Direct Upconversion
1500MHz to 2500MHz Quadrature Modulator
General Description
The MAX2022 low-noise, high-linearity, direct upcon-
version 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 tradi-
tional IF-based double upconversion systems.
In addition to offering excellent linearity and noise perfor-
mance, the MAX2022 also yields a high level of compo-
nent 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, there-
by 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 perfor-
mance is guaranteed over the extended -40°C to
+85°C temperature range.
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
cdma2000 is a registered trademark of Telecommunications
Industry Association.
cdmaOne is a trademark of CDMA Development Group.
Features
o 1500MHz to 2500MHz RF Frequency Range
o Meets Four-Carrier WCDMA 65dBc ACLR
o +23.3dBm Typical OIP3
o +51.5dBm Typical OIP2
o 45.7dBc Typical Sideband Suppression
o -40dBm Typical LO Leakage
o -173.2dBm/Hz Typical Output Noise, Eliminating
the Need for an RF Output Filter
o Broadband Baseband Input
o DC-Coupled Input Provides for Direct Launch
DAC Interface, Eliminating the Need for Costly I/Q
Buffer Amplifiers
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
PKG
CODE
MAX2022ETX
-40°C to +85°C
36 Thin QFN-EP*
(6mm x 6mm)
T3666-2
MAX2022ETX-T
-40°C to +85°C
36 Thin QFN-EP*
(6mm x 6mm)
T3666-2
MAX2022ETX+D
-40°C to +85°C
36 Thin QFN-EP*
(6mm x 6mm)
T3666-2
MAX2022ETX+TD -40°C to +85°C ^{36 Thin QFN-EP*} T3666-2
(6mm x 6mm)
*EP = Exposed paddle. + = Lead free. D = Dry pack.
-T = Tape-and-reel package.
WCDMA, ACLR, ALTCLR and Noise vs. RF
Output Power at 2140MHz for Single,
Two, and Four Carriers
-60
-125
4C ADJ
-62
4C ALT
-64
-135
-66
-68
-145
-70
2C ADJ 1C ADJ
-72
-155
-74
-76
-78
-80
-50
1C ALT
NOISE FLOOR
2C ALT
4C _2C
-165
1C
-40 -30 -20 -10
-175
0
RF OUTPUT POWER PER CARRIER (dBm)
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.