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LT5554

更新时间： 2024-11-11 11:42:27
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凌特 - Linear /
页数 文件大小 规格书
20页 341K
描述
Dual 600MHz to 1.7GHz High Dynamic Range Downconverting Mixer

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LT5554 数据手册

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Electrical Specifications Subject to Change  
LTC5590  
Dual 600MHz to 1.7GHz  
High Dynamic Range  
Downconverting Mixer  
FeaTures  
DescripTion  
The LTC®5590 is part of a family of dual-channel high dy-  
namic range, high gain downconverting mixers covering  
the 600MHz to 4GHz RF frequency range. The LTC5590  
is optimized for 600MHz to 1.7GHz RF applications. The  
LO frequency must fall within the 700MHz to 1.5GHz  
range for optimum performance. A typical application  
is a LTE or GSM receiver with a 700MHz to 915MHz RF  
input and high side LO.  
n
Conversion Gain: 8.7dB at 900MHz  
n
IIP3: 26dBm at 900MHz  
n
Noise Figure: 9.7dB at 900MHz  
n
15.6dB NF Under 5dBm Blocking  
n
High Input P1dB; 14.1dBm at 5V  
n
53dB Channel-to-Channel Isolation  
n
1.25W Power Consumption at 3.3V  
n
Low Current Mode for <800mW Consumption  
n
Enable Pins for Each Channel  
The LTC5590’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. A low current  
mode is provided for additional power savings and each  
of the mixer channels has independent shutdown control.  
n
50Ω Single-Ended RF and LO Inputs  
n
LO Input Matched In All Modes  
n
0dBm LO Drive Level  
n
Small Package and Solution Size  
n
–40°C to 105°C Operation  
applicaTions  
High Dynamic Range Dual Downconverting Mixer Family  
PART NUMBER  
LTC5590  
RF RANGE  
LO RANGE  
n
3G/4G Wireless Infrastructure Diversity Receivers  
600MHz to 1.7GHz  
1.3GHz to 2.3GHz  
1.6GHz to 2.7GHz  
2.3GHz to 4GHz  
700MHz to 1.5GHz  
1.4GHz to 2.1GHz  
1.7GHz to 2.5GHz  
2.4GHz to 3.6GHz  
(LTE, CDMA, GSM)  
LTC5591  
n
MIMO Infrastructure Receivers  
LTC5592  
n
High Dynamic Range Downmixer Applications  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
LTC5593  
Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
Wideband Receiver  
Wideband Conversion Gain  
NF and IIP3 vs IF Frequency  
(Mixer Only, Measured on  
Evaluation Board)  
190MHz  
SAW  
190MHz  
BPF  
1nF  
V
IF  
CCIF  
1nF  
150nH  
ADC  
AMP  
3.3V or 5V  
200mA  
150nH  
22pF  
1µF  
27  
26  
25  
24  
23  
22  
21  
20  
19  
13  
12  
11  
10  
9
V
3.3V  
CC  
IIP3  
22pF  
1µF  
180mA  
V
+
–
IFA  
CCA  
IFA  
IF  
AMP  
IMAGE  
BIAS  
ENA  
LO  
ENA  
(0V/3.3V)  
BPF 100pF  
NF  
RF  
RFA  
700MHz TO  
915MHz  
LNA  
LNA  
LO  
LO 1090MHz  
10pF  
AMP  
G
C
8
SYNTH  
IMAGE  
BPF 100pF  
7
T
= 25°C  
C
LO  
LO = 1090MHz  
AMP  
RF  
700MHz TO  
915MHz  
RFB  
6
RF = 900 30MHz  
TEST CIRCUIT IN FIGURE 1  
ENB  
ENB  
(0V/3.3V)  
5
IF  
BIAS  
V
160 170  
180  
190  
200  
210  
220  
AMP  
+
–
IFB  
IF FREQUENCY (MHz)  
IFB  
CCB  
5590 TA01b  
V
V
CC  
CCIF  
22pF  
150nH  
150nH  
1nF  
190MHz  
SAW  
190MHz  
BPF  
1nF  
22pF  
IF  
AMP  
ADC  
5590 TA01a  
5590p  
1
1234567...20

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