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参数资料
| 型号： | MAX2688LEWS+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 5/8页 |
| 文件大小： | 0K |
| 描述： | IC LNA GPS/GNSS 4WLP |
| 标准包装： | 2,500 |
| 频率： | 1575.42MHz |
| P1dB： | -10dBm（0.1mW） |
| 增益： | 15.4dB |
| 噪音数据： | 0.75dB |
| RF 型： | GPS/GNSS |
| 电源电压： | 1.6 V ~ 3.3 V |
| 电流 - 电源： | 4.1mA |
| 测试频率： | 1575.42MHz |
| 封装/外壳： | 4-WFBGA，WLCSP |
| 包装： | 带卷 (TR) |
GPS/GNSS Low-Noise Amplifiers
Bump Configuration
TOP VIEW
+
V CC
A1
A2
RFOUT (SHDN)
MAX2686
MAX2688
RFIN
B1
B2
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 externally 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 MAX2686/MAX2688 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, ultra-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
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.
5
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相关代理商/技术参数 |
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| MAX2689EWS+T | 功能描述:射频放大器 GPS/GNSS LO-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 |
| MAX2689EWS+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 |
| MAX2689LEWS+T | 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 |
| MAX2689LEWS+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 |
| MAX268ACNG | 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube |
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