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参数资料
| 型号： | MAX2687EWS+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/11页 |
| 文件大小： | 0K |
| 描述： | IC LNA GPS/GNSS 4WLP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 1575.42MHz |
| 增益： | 17.8dB |
| 噪音数据： | 0.85dB |
| RF 型： | GPS/GNSS |
| 电源电压： | 1.6 V ~ 3.6 V |
| 电流 - 电源： | 4.5mA |
| 封装/外壳： | 4-WFBGA，WLCSP |
| 包装： | 带卷 (TR) |
MAX2687/MAX2689/MAX2694
GPS/GNSS Low-Noise Amplifiers
Bump Configuration
TOP VIEW
+
MAX2687
MAX2689
MAX2694
V CC
RFIN
A1
B1
A2
B2
RFOUT (SHDN)
GND
WLP
Bump Description
BUMP
A1
A2
B1
B2
NAME
V CC
RFOUT
( SHDN )
RFIN
GND
FUNCTION
Supply Voltage. Bypass to ground with a 10pF capacitor as close as possible to the IC.
RF Output/ SHDN Input. RFOUT is internally matched to 50 I and pulled up to V CC through a 1M I
resistor. SHDN is shared with the RFOUT bump. The devices are in active mode by default once
V CC is applied. RFOUT( SHDN ) can be pulled to a DC low through a 25k I resistor to shut down
the IC.
RF Input. Requires a DC-blocking capacitor and external matching components.
Ground. Connect to the PCB ground plane.
Detailed Description
The MAX2687/MAX2689/MAX2694 are LNAs designed
for GPS L1, Galileo, and GLONASS applications. The
devices feature an optional power-shutdown control
mode to eliminate the need for an external supply switch.
The devices achieve high gain, low noise figure, and
excellent linearity.
Input and Output Matching
The devices require an off-chip input matching. Only
an inductor in series with a DC-blocking capacitor is
needed to form the input matching circuit. The Typical
Application Circuit shows the recommended input-
matching network. These values are optimized for the
best simultaneous gain, noise figure, and return loss
performance. The value of the input coupling capacitor
Maxim Integrated
affects IIP3. A smaller coupling capacitor results in lower
IIP3. The devices integrate an on-chip output matching
to 50 I at the output, eliminating the need for external
matching components. Tables 1 and 2 list typical device
S parameters and K f values. Typical noise parameters
are shown in Tables 3 and 4.
Shutdown
The devices include an optional shutdown feature to
turn off the entire chip. The devices are placed in active
mode by default once V CC is applied, due to the on-chip
pullup resistor to V CC at the RFOUT bump (shared with
the SHDN input). To shut down the part, apply a logic-
low to the RFOUT bump through an external resistor with
an adequate value, e.g., 25k I , in order not to load the
RF output signal during active operation.
7
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2687LEWS+T | 功能描述:射频放大器 RF and RFID 射频放大器s - IC LNA GPS/GNSS 4WLP 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 |
| MAX2687LEWS+T10 | 功能描述:射频放大器 GPS/GNSS Low-Noise 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 |
| MAX2688ELT+ | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX2688ELT+T10 | 制造商:Maxim Integrated Products 功能描述:GPS/GNSS LOW-NOISE AMPLIFIERS - Tape and Reel |
| MAX2688EVKIT+ | 功能描述:放大器 IC 开发工具 MAX2688 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 |
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