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MAX2057

更新时间： 2024-09-26 14:58:15
品牌 Logo 应用领域
亚德诺 - ADI 放大器
页数 文件大小 规格书
13页 458K
描述
1300MHz至2700MHz可变增益放大器，具有模拟增益控制

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MAX2057 数据手册

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19-3510; Rev 1; 12/10  
1300MHz to 2700MHz Variable-Gain  
Amplifier with Analog Gain Control  
MAX2057  
General Description  
Features  
The MAX2057 general-purpose, high-performance vari-  
able-gain amplifier (VGA) is designed to operate in the  
1300MHz to 2700MHz frequency range*. This device  
features 15.5dB of gain, 6dB of noise figure, and an out-  
put 1dB compression point of 23.8dBm. The MAX2057  
also provides an exceptionally high OIP3 level of  
37dBm, which is maintained over the entire attenuation  
range. In addition, the on-chip analog attenuators yield  
infinite control and high attenuation accuracy over  
selectable 21dB or 42dB control ranges. Each of these  
features makes the MAX2057 an ideal VGA for  
DCS/PCS, cdma2000™, W-CDMA, and PHS/PAS trans-  
mitter and power amplifier AGC circuits.  
o 1300MHz to 2700MHz RF Frequency Range*  
o 37dBm Constant OIP3 (Over All Gain Settings)  
o 23.8dBm Output 1dB Compression Point  
o 15.5dB Typical Gain at Maximum Gain Setting  
o 0.5dB Gain Flatness Over 100MHz Bandwidth  
o 6dB Noise Figure at Maximum Gain Setting (Using  
1 Attenuator)  
o Two Gain-Control Ranges: 21dB and 42dB  
o Analog Gain Control  
o Single +5V Supply Voltage  
The MAX2057 is pin compatible with the MAX2056  
800MHz to 1000MHz VGA, making this family of ampli-  
fiers ideal for applications where a common PC board  
layout is used for both frequency bands.  
o Pin Compatible with MAX2056, 800MHz to  
1000MHz RF VGA  
o External Current-Setting Resistors Provide Option  
for Operating VGA in Reduced-Power/Reduced-  
Performance Mode  
o Lead-Free Package Available  
*Note: Operation beyond this range is possible, but has not been  
The MAX2057 operates from a single +5V supply and is  
available in a compact 36-pin thin QFN package (6mm  
x 6mm x 0.8mm) with an exposed pad. Electrical per-  
formance is guaranteed over the extended -40°C to  
+85°C temperature range.  
characterized.  
Applications  
DCS 1800/PCS 1900 2G and 2.5G EDGE Base-  
Station Transmitters and Power Amplifiers  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
cdmaOne™, cdma2000, Base-Station  
Transmitters and Power Amplifiers  
36 Thin QFN-EP**  
6mm x 6mm  
MAX2057ETX+  
-40°C to +85°C  
WCDMA, LTE, TD-SCDMA, and TD-LTE  
Transmitters and Power Amplifiers  
36 Thin QFN-EP**  
6mm x 6mm  
MAX2057ETX+T  
-40°C to +85°C  
PHS/PAS Base-Station Transmitters and Power  
Amplifiers  
**EP = Exposed pad.  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape-and-reel package.  
Transmitter Gain Control  
Receiver Gain Control  
Broadband Systems  
Pin Configuration/Functional Diagram appear at end of data  
sheet.  
Automatic Test Equipment  
Digital and Spread-Spectrum Communication  
Systems  
Microwave Terrestrial Links  
cdmaOne is a trademark of CDMA Development Group.  
cdma2000 is a registered trademark of Telecommunications  
Industry Association.  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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