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19-1872; Rev 1; 4/02
KIT MA
UATION ET
EVAL TA SHE
FOLLO
WS DA
NUAL
1575MHz/1900MHz Variable-IP3
Low-Noise Amplifiers
General Description
The MAX2654/MAX2655/MAX2656 high third-order
intercept point (IP3), low-noise amplifiers (LNAs) are
designed for applications in GPS, PCS, WLL, and satel-
lite phone systems. The MAX2654/MAX2655/MAX2656
incorporate on-chip internal output matching to 50 ? ,
eliminating the need for external matching components.
A shutdown feature in the MAX2654/MAX2655 reduces
operating current to 0.1μA, eliminating the need for an
external supply switch.
The MAX2654 operates in the GPS frequency of
1575MHz with 15.1dB of gain, 1.5dB noise figure, and
only consumes 5.8mA. The MAX2655 is designed with
high-input IP3 to improve operation in cellular applica-
tions where the cellular power amplifier leaks into the
GPS receiver. The MAX2656 is designed for PCS
phone applications with 13.5dB of gain in high-gain
mode and 0.8dB of gain in low-gain mode (selected by
a logic control) and 1.9dB noise figure.
The IP3 of MAX2655/MAX2656 is adjustable by a single
external bias resistor (R BIAS ), allowing supply current to
be optimized for a specific application.
Features
o Low Noise Figure
MAX2654: 1.5dB at 1575MHz
MAX2655: 1.45dB at 1575MHz
MAX2656: 1.9dB at 1960MHz
o High Gain
MAX2654: 15.1dB at 1575MHz
MAX2655: 14.1dB at 1575MHz
MAX2656: 13.5dB at 1960MHz
o 12.7dB Gain Step (MAX2656 only)
o Integrated 50 ? Output Matching
o Variable IP3 Set by One Bias Resistor
(MAX2655/MAX2656 only)
o 0.1μA Shutdown Mode (MAX2654/MAX2655 only)
o +2.7V to +5.5V Single-Supply Operation
o Ultra-Small 6-Pin SC70 Package
Ordering Information
The MAX2654/MAX2655/MAX2656 operate from +2.7V
to +5.5V single supply and are available in the minia-
ture 6-pin SC70 package.
________________________Applications
GPS Receivers
GPS Receivers in Cell Phones
PART
MAX2654 EXT-T
MAX2655 EXT-T
MAX2656 EXT-T
TEMP.
RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +95°C
PIN-
PACKAGE
6 SC70-6
6 SC70-6
6 SC70-6
SOT
TOP-
MARK
AAI
AAJ
AAK
DCS/PCS Cell Phones
Satellite Phones
Wireless Local Loop
Typical Operating Circuit
V CC = +3.0V
TOP VIEW
Pin Configuration
MAX2655
MAX2656
R BIAS
1
4
BIAS
Cb
V CTRL /GND
10k
1
BIAS (GND)
RFOUT 6
RFIN
L1
3
6
2
MAX2654
GND MAX2655 GND 5
MAX2654
C1
C2
(1)
2
5
RFOUT
( ) IS FOR MAX2654 ONLY
3
RFIN
V CC 4
PART
FREQUENCY
L1(nH)
C1(pF)
C2(pF)
( ) IS FOR MAX2654 ONLY
SC70-6
MAX2654
MAX2655
MAX2656
1575
1575
1960
5.6
5.6
4.7
6
1800
1800
1.6
1.5
1.2
________________________________________________________________ Maxim Integrated Products
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
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相关代理商/技术参数
MAX2656EXT 制造商:Maxim Integrated Products 功能描述:6 PIN COUNT SC70 PACKAGE TYPE - Bulk 制造商:Rochester Electronics LLC 功能描述:
MAX2656EXT+ 制造商:Maxim Integrated Products 功能描述:RF AMP CHIP SGL GP 2GHZ 5.5V 6PIN SC-70 - Rail/Tube
MAX2656EXT+T 功能描述:射频放大器 1575MHz/1900MHz Variable-IP3 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2656EXT-T 功能描述:射频放大器 1575MHz/1900MHz Variable-IP3 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2657AEVKIT+ 功能描述:放大器 IC 开发工具 RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V
MAX2657EVKIT+ 功能描述:放大器 IC 开发工具 MAX2657 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V
MAX2657EWT+ 制造商:Maxim Integrated Products 功能描述:GPS/GNSS LOW-NOISE AMPLIFIERS - Rail/Tube
MAX2657EWT+T 功能描述:射频放大器 GPS/GNSS Low Noise Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel