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19-2929; Rev 0; 8/03
ATION
AILABL
EVALU E
AV
KIT
1200MHz to 2500MHz Adjustable
RF Predistorter
General Description
Features
The MAX2009 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 MAX2009
can provide up to 12dB of ACPR improvement for
power amplifiers operating in the 1200MHz to 2500MHz
frequency band. Lower frequencies of operation can be
achieved with this IC’s counterpart, the MAX2010.
The MAX2009 is unique in that it provides up to 7dB of
gain expansion and 24° of phase expansion as the
input power is increased. The amount of expansion is
configurable through two independent sets of control:
one set adjusts the gain expansion breakpoint
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Up to 12dB ACPR Improvement*
Independent Gain and Phase Expansion Controls
Gain Expansion Up to 7dB
Phase Expansion Up to 24°
1200MHz to 2500MHz Frequency Range
Exceptional Gain and Phase Flatness
Group Delay <1.3ns (Gain and Phase Sections
Combined)
± 0.04ns Group Delay Ripple Over a 100MHz Band
Capable of Handling Input Drives Up to +23dBm
On-Chip Temperature Variation Compensation
Single +5V Supply
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 soft-
ware-controlled distortion correction. Hybrid correction
modes are also possible using simple lookup tables to
? Low Power Consumption: 75mW (typ)
? Fully Integrated into Small 28-Pin Thin QFN
Package
* Performance dependent on amplifier, bias, and modulation.
Ordering Information
compensate for factors such as PA temperature drift
or PA loading.
PART
MAX2009ETI-T
TEMP RANGE
-40 ° C to +85 ° C
PIN-PACKAGE
28 Thin QFN-EP*
The MAX2009 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
WCDMA/UMTS, cdma2000, DCS1800, and
PCS1900 Base Stations
* EP = Exposed paddle.
Functional Diagram/
Pin Configuration
Feed-Forward PA Architectures
28
27
26
25
24
23
22
Digital Baseband Predistortion Architectures
Military Applications
GND*
1
GAIN
21 V CCG
WLAN Applications
GND*
ING
GND*
GND*
OUTP
GND*
2
3
4
5
6
7
MAX2009
CONTROL
PHASE
CONTROL
20 GND*
19 PBRAW
18 PBEXP
17 PBIN
16 GND*
15 V CCP
8
9
10
11
12
13
14
*INTERNALLY CONNECTED TO EXPOSED GROUND PADDLE.
________________________________________________________________ Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
1
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相关代理商/技术参数
MAX2009ETI-T 功能描述:射频前端 1.2-2.5GHz Adj RF Predistorter RoHS:否 制造商:Skyworks Solutions, Inc. 类型: 工作频率:2.4 GHz, 5 GHz 最大数据速率:54 Mbps 噪声系数: 工作电源电压:3.3 V 电源电流:180 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-32
MAX2009EVKIT 功能描述:射频开发工具 Evaluation Kit for the MAX2009 MAX2010 RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V
MAX200C/D 功能描述:RS-232接口集成电路 +5V RS-232 Transceiver with 0.1 Micro Farads External Capacitors RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX200CPP 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX200CWP 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX200CWP+ 功能描述:RS-232接口集成电路 5V RS-232 Tcvr w/0.1uF External Cap RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX200CWP+T 功能描述:RS-232接口集成电路 5V RS-232 Tcvr w/0.1uF External Cap RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: