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F1455EVBK PDF预览

F1455EVBK

更新时间: 2024-11-26 01:04:47
品牌 Logo 应用领域
艾迪悌 - IDT /
页数 文件大小 规格书
27页 2838K
描述
TX Digital VGA

F1455EVBK 数据手册

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T
TX Digital VGA  
1400 MHz to 2300 MHz  
F1455  
Datasheet  
Description  
Features  
The F1455 is a High Gain / High Linearity 1400 MHz to 2300 MHz  
TX Digital Variable Gain Amplifier used in transmitter applications.  
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Broadband 1400 MHz to 2300 MHz  
32.8 dB max gain  
3.9 dB NF @ max gain (2000 MHz)  
29.5 dB total gain control range, 0.5 dB step  
< 2 dB overshoot between gain transitions  
Maintains flat +23 dBm OP1dB for more than 13 dB gain  
adjustment range  
The F1455 TX DVGA provides 32.8 dB maximum gain with  
+38.5 dBm OIP3 and 3.9 dB noise figure. Up to 29.5 dB gain  
control is achieved using the combination of a digital step  
attenuator (DSA) and a KLIN RF Digital Gain Amplifier. This  
device uses a single 5 V supply and 220 mA of ICC.  
TM  
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Maintains flat +38.5 dBm OIP3 for more than 15 dB gain  
adjustment range  
SPI interface for DSA control  
Single 5 V supply voltage  
ICC = 220 mA  
Up to +105 °C TCASE operating temperature  
50 Ω input and output impedance  
Standby mode for power savings  
Pin compatible with 700 MHz and 2700 MHz versions  
6 mm x 6 mm, 28-pin QFN package  
This device is packaged in a 6 mm x 6 mm, 28-pin QFN with 50 Ω  
single-ended RF input and RF output impedances for ease of  
integration into the signal-path.  
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Competitive Advantage  
In typical Base Stations, RF VGAs are used in the TX traffic paths  
to drive the transmit power amplifier. The F1455 TX DVGA offers  
very high reliability due to its construction from a monolithic silicon  
die in a QFN package. The F1455 is configured to provide an  
optimum balance of noise and linearity performance consisting of  
a KLINTM RF amplifier, digital step attenuator (DSA) and a PA driver  
amplifier. The KLINTM amplifier maintains the OIP3 and output P1dB  
performance over an extended attenuation range when compared  
to competitive devices.  
Block Diagram  
Figure 1. Block Diagram  
Typical Applications  
KLLIINN  
Constant  
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Multi-mode, Multi-carrier Transmitters  
PCS1900 Base Stations  
High LinearityTM  
KLINTM DVGA  
DSA  
PA Driver  
DCS1800 Base Stations  
RF IN  
WiMAX and LTE Base Stations  
UMTS/WCDMA 3G Base Stations  
PHS/PAS Base Stations  
RF OUT  
Public Safety Infrastructure  
SPI &  
Decoder  
Bias  
6 mm x 6 mm  
28-pin  
3
/STBY  
Digital CTL  
© 2016 Integrated Device Technology, Inc  
1
October 19, 2016  

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