LTC5543IUH#TRPBF [Linear]
LTC5543 - 2.3GHz to 4GHz High Dynamic Range Downconverting Mixer; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C;
| 型号： | LTC5543IUH#TRPBF |
| 厂家： | 
Linear |
| 描述： | LTC5543 - 2.3GHz to 4GHz High Dynamic Range Downconverting Mixer; Package: QFN; Pins: 20; Temperature Range: -40°C to 85°C |
| 文件： | 总1页 (文件大小：51K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Electrical Specifications Subject to Change
LTC5543
2.3GHz to 4GHz
High Dynamic Range
Downconverting Mixer
FEATURES
DESCRIPTION
The LTC®5543 is part of a family of high dynamic range
passive downconverting mixers covering the 700MHz to
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
High Input P1dB
n
n
3.3V Supply, 660mW Power Consumption
n
Shutdown Pin
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50Ω Single-Ended RF and LO Inputs
n
LO Inputs 50Ω Matched when Shutdown
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
High Isolation LO Switch
0dBm LO Drive Level
High LO-RF and LO-IF Isolation
Small Solution Size
n
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.
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
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
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
5543p
LINEAR TECHNOLOGY CONFIDENTIAL
1
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