3.4GHz to 3.8GHz SiGe
Low-Noise Amplifier/PA Predriver
1
GND
V CC
47pF
V CC
0.1 μ F
2
GND
GAIN
9
HIGH GAIN
LOW GAIN
RF INPUT
3.4GHz to 3.8GHz
C1
3
MAX2645
RFIN SHDN
8
ON
OFF
Z1
4
GND
GND
7
RADIAL STUB *
40 °
294
T LINE
mil
s
220pF
5
BIAS
R BIAS
RF OUT
8
L EQUIV = 1.5nH
RF
OUTPUT
V CC
1000pF
0.75pF
APPLICATION CIRCUIT
C1
Z1
R BIAS (k ? ) V CC (V)
LNA, LOW NF
LNA, HIGH INPUT IP3
PA PREDRIVER
1.5pF
1000pF
0.01 μ F
1.8nH
0.75pF
0.75pF
20
20
15
3.3
3.3
5.0
* BOARD MATERIAL = GETek, COPPER THICKNESS = 1 oz
BOARD THICKNESS = 0.012in, DIELECTRIC CONSTANT = 3.8
Figure 1. Typical Application Circuit
MAX2645
MAX2645
RF
IMAGE-REJECT
FILTER
MAX2683
MAX2684
IF
BANDPASS
FILTER
RECEIVE
IF OUTPUT
MAX2645
LOW NF
LNA
HIGH IP3
LNA
LO
LO BUFFER
DUPLEXER
MAX2645
RF
BANDPASS
LO
PA
MAX2645
FILTER
TRANSMIT
IF INPUT
LO BUFFER
MAX2683
MAX2684
PA PREDRIVER
Figure 2. Typical System Application Block Diagram
______________________________________________________________________________________
11
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相关代理商/技术参数
MAX2648EBT 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX2648EBT-T 功能描述:射频放大器 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
MAX2648EBT-T10 功能描述:射频放大器 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
MAX2648EVKIT 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
MAX2648PCB 功能描述:射频放大器 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
MAX2649CCM 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX2649EBT 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX2649EBT-T 功能描述:射频放大器 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