MAX2023_V1 Datasheet, PDF (1/18 Pages) Maxim Integrated Products – High-Dynamic-Range, Direct Up-/Downconversion 1500MHz to 2500MHz Quadrature Mod/Demod

19-0564; Rev 1; 5/12
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High-Dynamic-Range, Direct Up-/Downconversion
1500MHz to 2500MHz 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
2500MHz DCS 1800/PCS 1900 EDGE, cdma2000^®,
WCDMA/LTE/TD-LTE, and PHS/PAS base-station appli-
cations. Direct conversion architectures are advanta-
geous 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 TQFN package (6mm x
6mm) with an exposed pad. Electrical performance is
guaranteed over the extended -40°C to +85°C temper-
ature range.
Applications
Single-Carrier DCS 1800/PCS 1900 EDGE Base
Stations
Single and Multicarrier WCDMA/LTE/TD-LTE 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)
Features
♦ 1500MHz to 2500MHz 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 P_OUT = +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
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX2023ETX+
-40°C to +85°C
36 TQFN-EP*
(6mm x 6mm)
MAX2023ETX+T
-40°C to +85°C
36 TQFN-EP*
(6mm x 6mm)
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
T = Tape and reel.
cdma2000 is a registered certification mark and registered service mark of the Telecommunications Industry Association.
cdmaOne is a trademark of CDMA Development Group.
For pricing, delivery, and ordering information, please contact Maxim Direct
1
at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.