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LTC5543 PDF预览

LTC5543

更新时间: 2023-12-20 18:45:50
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
16页 246K
描述
2.3GHz 至 4GHz、高动态范围、下变频混频器

LTC5543 数据手册

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LTC5543  
2.3GHz to 4GHz  
High Dynamic Range  
Downconverting Mixer  
FEATURES  
DESCRIPTION  
TheLTC®5543ispartofafamilyofhighdynamicrange,high  
gainpassivedownconvertingmixerscoveringthe600MHzto  
4GHzfrequencyrange.TheLTC5543isoptimizedfor2.3GHz  
to4GHzRFapplications.TheLOfrequencymustfallwithin  
the 2.4GHz to 3.6GHz range for optimum performance. A  
typicalapplicationisaLTEorWiMAXreceiverwitha2.3GHz  
to 2.7GHz RF input and high-side LO.  
n
Conversion Gain: 8.4dB at 2500MHz  
n
IIP3: 24.5dBm at 2500MHz  
n
Noise Figure: 10.2dB at 2500MHz  
n
17.5dB NF Under +5dBm Blocking  
n
High Input P1dB  
n
3.3V Supply, 660mW Power Consumption  
n
Shutdown Pin  
n
50Ω Single-Ended RF and LO Inputs  
The LTC5543 is designed for 3.3V operation, however; the  
IF amplifier can be powered by 5V for the highest P1dB.  
An integrated SPDT LO switch with fast switching accepts  
two active LO signals, while providing high isolation.  
n
LO Inputs 50Ω Matched when Shutdown  
n
High Isolation LO Switch  
0dBm LO Drive Level  
High LO-RF and LO-IF Isolation  
Small Solution Size  
n
n
n
The LTC5543’s high conversion gain and high dynamic  
range enable the use of lossy IF filters in high-selectivity  
receiver designs, while minimizing the total solution cost,  
board space and system-level variation.  
n
20-Lead (5mm × 5mm) QFN package  
APPLICATIONS  
n
Wireless Infrastructure Receivers  
High Dynamic Range Downconverting Mixer Family  
(LTE, WiMAX, WCS)  
PART#  
RF RANGE  
LO RANGE  
n
Point-To-Point Microwave Links  
High Dynamic Range Downmixer Applications  
LTC5540  
LTC5541  
LTC5542  
LTC5543  
600MHz –1.3GHz  
1.3GHz – 2.3GHz  
1.6GHz – 2.7GHz  
2.3GHz – 4GHz  
700MHz – 1.2GHz  
1.4GHz – 2.0GHz  
1.7GHz – 2.5GHz  
2.4GHz – 3.6GHz  
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Wideband Receiver  
Wideband Conversion Gain, IIP3  
and NF vs IF Output Frequency  
190MHz  
1nF  
190MHz  
BPF  
SAW  
V
IF  
CCIF  
3.3V or 5V  
1nF  
150nH  
9.0  
8.9  
8.8  
8.7  
8.6  
8.5  
8.4  
8.3  
8.2  
8.1  
8.0  
26  
24  
22  
20  
18  
16  
14  
12  
10  
8
ADC  
AMP  
150nH  
22pF  
1μF  
IIP3  
f
= 2725MHz  
LO  
LO  
+
P
= 0dBm  
IF  
IF  
RF = 2535 35MHz  
TEST CIRCUIT IN FIGURE 1  
2.7pF  
LO2  
LO1  
LTC5543  
IMAGE  
BPF  
SYNTH 2  
IF  
1.2nH  
RF  
2500MHz  
TO  
RF  
ALTERNATE LO FOR  
FREQUENCY-HOPPING  
LNA  
G
C
LO  
0.8pF  
2570MHz  
2.7pF  
SHDN  
(0V/3.3V)  
BIAS  
NF  
SYNTH 1  
SHDN  
V
V
V
CC3  
LOSEL  
CC2  
1μF  
CC1  
LO  
2725MHz  
6
155 165 175 185 195 205 215 225  
V
CC  
3.3V  
LO SELECT  
(0V/3.3V)  
22pF  
IF OUTPUT FREQUENCY (MHz)  
5543 TA02  
5543 TA01  
5543f  
1

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