Rainbow Electronics MAX2022 - Manual

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
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
MAX2022
High-Dynamic-Range, Direct Upconversion
1500MHz to 2500MHz Quadrature Modulator
________________________________________________________________ Maxim Integrated Products 1
RF OUTPUT POWER PER CARRIER (dBm)
ACLR AND ALT CLR (dBc)
-10 -20 -30 -40
-78
-76
-74
-72
-70
-68
-66
-64
-62
-60
-80
NOISE FLOOR (dBm/Hz)
-165
-155
-145
-135
-125
-175
-50 0
4C ADJ
4C ALT
2C ADJ 1C ADJ
2C ALT
1C ALT
4C 2C
1C
NOISE FLOOR
WCDMA, ACLR, ALTCLR and Noise vs. RF
Output Power at 2140MHz for Single,
Two, and Four Carriers
Ordering Information
19-3572; Rev 0; 4/05
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.
EVALUATION KIT AVAILABLE
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*
(6mm x 6mm)
T3666-2
cdma2000 is a registered trademark of Telecommunications
Industry Association.
cdmaOne is a trademark of CDMA Development Group.
*EP = Exposed paddle. + = Lead free. D = Dry pack.
-T = Tape-and-reel package.