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参数资料
| 型号： | MAX2247EBC+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC AMP POWER 2.4GHZ 12-UCSP |
| 标准包装： | 2,500 |
| 频率： | 2.4GHz ~ 2.5GHz |
| 增益： | 29dB |
| RF 型： | ISM |
| 电源电压： | 2.7 V ~ 4.2 V |
| 电流 - 电源： | 350mA |
| 封装/外壳： | 12-WFBGA，WLCSP |
| 包装： | 带卷 (TR) |
2.4GHz SiGe Linear Power Amplifier
STANDARD BASEBAND/MAC IC
TX POWER DETECTOR
MAX2820
RX BASEBAND I/Q
ZERO-IF TRANSCEIVER
POWER
DETECTOR
BIAS
CIRCUIT
CURRENT
DAC
TX BASEBAND I/Q
RF OUTPUT
MAX2247
PA DRIVER
SHUTDOWN CONTROL
Figure 2. The MAX2247 Connected to the Current DAC of the MAX2820 for Bias Control
Applications Information
The MAX2247 is a three-stage amplifier that requires
special attention to board layout and grounding for
optimum output power, gain, efficiency, and side-lobe
suppression. For ease of implementation, the MAX2247
evaluation (EV) kit layout should be used as a model.
Gerber files are available from Maxim upon request.
Follow the recommendations below to optimize perfor-
mance when adapting the layout to your board.
Interstage Matching and Bypassing
V CC 1 and V CC 2 provide DC bias to the open-collector
outputs of the first- and second-stage amplifiers and
are also part of the interstage matching networks
required to optimize performance among the three
amplifier stages. The MAX2247 must have a small
amount of inductance on the V CC lines in addition to
the inductance already provided on-chip. See the
Typical Application Circuit for the lumped and discrete
component values used on the MAX2247 EV kit for opti-
mum interstage matching and RF bypassing.
In addition to RF bypass capacitors on each bias line, a
global bypass capacitor of 4.7μF is necessary to filter
any noise on the supply line. Route separate V CC bias
paths from the global bypass capacitor (using a star
topology) to avoid coupling between PA stages. Use
the MAX2247 EV kit PC board layout as a guide.
Input Matching
The MAX2247 includes internal input matching to 50 Ω , so
no external matching network is required. A DC-blocking
capacitor is required at the input to the device.
Output Matching
The RF_OUT port is an open-collector output that must be
pulled to V CC through an RF choke for proper biasing (see
the Typical Operating Circuit). A shunt 22pF capacitor to
ground is required at the supply side of the inductor. In
addition, a matching network is required for optimum gain,
efficiency, ACPR, and output power. The EV kit should
serve as a good starting point for your layout. However,
optimum performance is layout dependent, and some
component optimization may be required. It is important to
leave room on your board for tuning/optimization.
8
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2247EBC-T10 | 功能描述:射频放大器 2.4GHz SiGe Linear Power Amplifier 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 |
| MAX2247EVKIT | 功能描述:放大器 IC 开发工具 MAX2247 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 |
| MAX2247EWC+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX2247EWC+T | 功能描述:射频放大器 2.4GHz SiGe Linear Power Amplifier 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 |
| MAX225 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:+5V-Powered, Multichannel RS-232 Drivers/Receivers |
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