參數(shù)資料
型號： MAX2674EWT+T
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 無繩電話/電話
英文描述： TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PBGA6
封裝： 0.86 X 1.26 MM, 0.64 MM HEIGHT, ROHS COMPLIANT, WLP-6
文件頁數(shù)： 7/9頁
文件大小： 1078K
代理商： MAX2674EWT+T
GPS/GNSS LNAs with Antenna Switch and Bias
M
7
Detailed Description
The MAX2674/MAX2676 are low-power LNAs designed
for GPS/GNSS receiver applications. The devices feature
low noise and high linearity in an ultra-small package.
They also include an antenna switch and circuitry sup-
porting bias to accommodate external LNA applications.
Input and Output Matching
To achieve optimal performance in noise figure, gain,
and IIP3, the devices require one matching inductor at
RFIN in series with a DC-blocking capacitor. RFOUT/
SHDN
is internally matched to 50
I
, eliminating the need
for external matching components. At RFOUT/
SHDN
, an
external DC-blocking capacitor should be used to isolate
the shutdown control function.
Shutdown Mode
To place the device in shutdown mode, apply logic-low
to RFOUT/
SHDN
through a 25k resistor. An additional
DC-blocking capacitor or component is required at
RFOUT/
SHDN
in this case. Apply a logic-high state or no
DC bias to turn the part permanently on.
DC Supply Decoupling and Layout
A properly designed PC board (PCB) is essential to any
RF microwave 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 may be necessary to add additional
decoupling capacitors. Locate these additional capaci-
tors further away from the device package.
Proper grounding of 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.
Antenna Switch Control
The MAX2674/MAX2676 ANT input includes an autode-
tection feature. When no current is drawn from ANT, the
switch defaults to normal LNA operation. The pin can be
directly connected to an external active antenna. The
device automatically switches to the ANT input when an
external active antenna is connected.
Refer to
for the MAX2674/MAX2676
S-parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX2675EWT+T 功能描述:射頻放大器 GPS LNA w/antenna bypass switch RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel
MAX2675EWT+T10 功能描述:射頻放大器 GPS LNA w/antenna bypass switch RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel
MAX2676EVKIT+ 功能描述:放大器 IC 開發(fā)工具 MAX2676 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX2676EWT+ 制造商:Maxim Integrated Products 功能描述:- Rail/Tube
MAX2676EWT+T 功能描述:射頻放大器 GPS LNA w/antenna Bypass Switch RoHS:否 制造商:Skyworks Solutions, Inc. 類型:Low Noise Amplifier 工作頻率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 輸出截獲點:37.5 dBm 功率增益類型:32 dB 噪聲系數(shù):0.85 dB 工作電源電壓:5 V 電源電流:125 mA 測試頻率:2.6 GHz 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 封裝:Reel
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