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参数资料
| 型号： | MAX2668EYT+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 7/9页 |
| 文件大小： | 0K |
| 描述： | IC AMP LNA HSPA/LTE 6-ULGA |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 频率： | 850MHz ~ 1GHz |
| 增益： | 17dB |
| 噪音数据： | 1dB |
| RF 型： | HSPA，LTE |
| 电源电压： | 2.7 V ~ 3.3 V |
| 电流 - 电源： | 3.8mA |
| 封装/外壳： | 6-UFLGA |
| 包装： | 带卷 (TR) |
Tiny Low-Noise Amplifiers for HSPA/LTE
Detailed Description
The MAX2666/MAX2668 are low-power LNAs designed
for 3G mobile applications. The devices feature low
noise, high linearity, and three gain steps in a tiny plastic
package.
Input and Output Matching
The devices require one matching inductor at the input
port in series with a DC-blocking capacitor to achieve
optimal performance in NF, gain, IIP3, and phase shift.
Table 1 presents the recommended input-matching
network values. The output port is internally matched to
50 I , eliminating the need for external matching com-
ponents. At the output port, an external DC-blocking
capacitor should be used to isolate the control function
of the output pin.
DC Decoupling and Layout
A properly designed PCB is essential to any RF micro-
wave circuit. Use controlled-impedance lines on all
high-frequency inputs and outputs. Bypass V CC with a
decoupling capacitor located close to the device.
For long V CC lines, it might be necessary to add decou-
pling capacitors. Locate these additional capacitors
further away from the device package. Proper grounding
of the GND pins is essential. If the PCB uses a top-side
RF ground, connect it directly to the GND pins. For a
board where the ground is not on the component layer,
connect the GND pins to the board with multiple vias
close to the package.
Gain Control
The devices’ LNA_OUT/GAIN0 pin is also used as a
control pin for the LNA gain modes according to the gain
control table. GAIN0 logic level is set through an external
20k I resistor. An external DC-blocking capacitor should
be used to isolate the control function of this dual-pur-
pose pin (see the Typical Operating Circuit ). The GAIN1
pin must be set to either logic-high or logic-low.
Refer to www.maxim-ic.com for the MAX2666/MAX2668
Evaluation Kit schematic, Gerber data, PADS layout file,
and BOM information.
Table 1. Matching Component Values in
Different Bands
BAND SERIES C (nF) SERIES L (nH)
1, 4, 10 10 3.9
5, 6 10 12
8 10 12
Detailed Application Circuit in EV Kit
V CC
C1
C5
0.01μF
10%
(0402)
1000pF
10%
(0402)
GND
1
RFIN
C4
0.01μF
10%
(0201)
C7
OPEN
(0201)
L4
3.9nH Q 0.1nH (MAX2666)
12nH Q 0.2nH (MAX2668)
(0402)
2
3
LNA_IN
BIAS_GND
LNA_GND
U1
MAX2666
MAX2668
V CC
GAIN1
LNA_OUT/GAIN0
6
5
4
R1
0 I
(0201)
R2
0 I
(0201)
GAIN1
R4
20k I
(0201)
C3
0.01μF
10%
(0201)
GAIN0
RFOUT
_______________________________________________________________________________________
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2669EVKIT+ | 功能描述:射频开发工具 MAX2669 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2669EWT+T | 功能描述:射频放大器 Low Noise Figure GPS/GNSS 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 |
| MAX2669EWT+T10 | 功能描述:射频放大器 Low Noise Figure GPS/GNSS 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 |
| MAX266ACPI | 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 |
| MAX266ACPI+ | 功能描述:有源滤波器 Integrated Circuits (ICs) 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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