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MAX2010 Datasheet

500MHz to 1100MHz Adjustable RF Predistorter

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MAX2010 pdf
19-2930; Rev 0; 8/03
500MHz to 1100MHz Adjustable
RF Predistorter
General Description
The MAX2010 adjustable RF predistorter is designed to
improve power amplifier (PA) adjacent-channel power
rejection (ACPR) by introducing gain and phase expan-
sion in a PA chain to compensate for the PA’s gain and
phase compression. With its +23dBm maximum input
power level and wide adjustable range, the MAX2010
can provide up to 12dB of ACPR improvement for
power amplifiers operating in the 500MHz to 1100MHz
frequency band. Higher frequencies of operation can
www.DbaetaaSchheieevt4eUd.cwoimth this IC’s counterpart, the MAX2009.
The MAX2010 is unique in that it provides up to 6dB of
gain expansion and 21° of phase expansion as the input
power is increased. The amount of expansion is config-
urable through two independent sets of control: one set
adjusts the gain expansion breakpoint and slope, while
the second set controls the same parameters for phase.
With these settings in place, the linearization circuit can
be run in either a static set-and-forget mode, or a more
sophisticated closed-loop implementation can be
employed with real-time software-controlled distortion
correction. Hybrid correction modes are also possible
using simple lookup tables to compensate for factors
such as PA temperature drift or PA loading.
The MAX2010 comes in a 28-pin thin QFN exposed
pad (EP) package (5mm x 5mm) and is specified for
the extended (-40°C to +85°C) temperature range.
Applications
cdma2000™, GSM/EDGE, and iDEN Base Stations
Feed-Forward PA Architectures
Digital Baseband Predistortion Architectures
Military Applications
Features
o Up to 12dB ACPR Improvement*
o Independent Gain and Phase Expansion Controls
o Gain Expansion Up to 6dB
o Phase Expansion Up to 21°
o 500MHz to 1100MHz Frequency Range
o Exceptional Gain and Phase Flatness
o Group Delay <2.4ns (Gain and Phase Sections
Combined)
o ±0.03ns Group Delay Ripple Over a 100MHz Band
o Capable of Handling Input Drives Up to +23dBm
o On-Chip Temperature Variation Compensation
o Single +5V Supply
o Low Power Consumption: 75mW (typ)
o Fully Integrated into Small 28-Pin Thin QFN
Package
*Performance dependent on amplifier, bias, and modulation.
Ordering Information
PART
MAX2010ETI-T
TEMP RANGE
-40°C to +85°C
*EP = Exposed paddle.
PIN-PACKAGE
28 Thin QFN-EP*
Functional Diagram/
Pin Configuration
28 27 26 25 24 23 22
GND* 1
GND* 2
GAIN
CONTROL
21 VCCG
20 GND*
ING 3
19 PBRAW
GND* 4
GND* 5
MAX2010
18 PBEXP
17 PBIN
OUTP 6
GND* 7
PHASE
CONTROL
16 GND*
15 VCCP
8 9 10 11 12 13 14
cdma2000 is a trademark of Telecommunications Industry
Assoc.
*INTERNALLY CONNECTED TO EXPOSED GROUND PADDLE.
________________________________________________________________ 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.
Maxim Integrated Products
Maxim Integrated Products


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