MAX2023 Datasheet, PDF (1/13 Pages) Maxim Integrated Products – High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2300MHz Quadrature Mod/Demod

19-0564; Rev 0; 7/06
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High-Dynamic-Range, Direct Up-/Downconversion
1500MHz to 2300MHz Quadrature Mod/Demod
General Description
The MAX2023 low-noise, high-linearity, direct upconver-
sion/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.
Direct conversion architectures are advantageous
since they significantly reduce transmitter or receiver
cost, part count, and power consumption as compared
to traditional IF-based double-conversion systems.
In addition to offering excellent linearity and noise perfor-
mance, the MAX2023 also yields a high level of compo-
nent integration. This device includes two matched
passive mixers for modulating or demodulating in-phase
and quadrature signals, two LO mixer amplifier drivers,
and an LO quadrature splitter. On-chip baluns are also
integrated to allow for single-ended RF and LO connec-
tions. As an added feature, the baseband inputs have
been matched to allow for direct interfacing to the trans-
mit DAC, thereby eliminating the need for costly I/Q
buffer amplifiers.
The MAX2023 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-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)
cdma2000 is a registered trademark of Telecommunications
Industry Association.
cdmaOne is a trademark of CDMA Development Group.
Features
o 1500MHz to 2300MHz RF Frequency Range
o Scalable Power: External Current-Setting
Resistors Provide Option for Operating Device in
Reduced-Power/Reduced-Performance Mode
o 36-Pin, 6mm x 6mm TQFN Provides High Isolation
in a Small Package
Modulator Operation:
o Meets GSM Spurious Emission of -75dBc at
600kHz Offset at POUT = +6dBm
o +23.5dBm Typical OIP3
o +61dBm Typical OIP2
o +16dBm Typical OP1dB
o -54dBm Typical LO Leakage
o 48dBc Typical Sideband Suppression
o -165dBc/Hz Output Noise Density
o Broadband Baseband Input of 450MHz Allows a
Direct Launch DAC Interface, Eliminating the
Need for Costly I/Q Buffer Amplifiers
o DC-Coupled Input Allows Ability for Offset
Voltage Control
Demodulator Operation:
o +38dBm Typical IIP3
o +59dBm Typical IIP2
o +30dBm Typical IP1dB
o 9.5dB Typical Conversion Loss
o 9.6dB Typical NF
o 0.025dB Typical I/Q Gain Imbalance
o 0.56° I/Q Typical Phase Imbalance
Ordering Information
PART
TEMP RANGE
MAX2023ETX -40°C to +85°C
MAX2023ETX-T -40°C to +85°C
MAX2023ETX+ -40°C to +85°C
MAX2023ETX+T -40°C to +85°C
PIN-
PACKAGE
36 Thin QFN-EP*
(6mm x 6mm)
36 Thin QFN-EP*
(6mm x 6mm)
36 Thin QFN-EP*
(6mm x 6mm)
36 Thin QFN-EP*
(6mm x 6mm)
PKG
CODE
T3666-2
T3666-2
T3666-2
T3666-2
*EP = Exposed paddle.
+Denotes lead-free package.
T = Tape-and-reel package.
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