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LTC5567 PDF预览

LTC5567

更新时间: 2024-09-25 14:58:23
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
20页 359K
描述
具宽带 IF 的 300MHz 至 4GHz 有源下变频混频器

LTC5567 数据手册

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LTC5567  
300MHz to 4GHz Active  
Downconverting Mixer with  
Wideband IF  
FeaTures  
DescripTion  
The LTC®5567 is optimized for RF downconverting mixer  
applications that require wide IF bandwidth. The part is  
also a pin-compatible upgrade to the LT5557 active mixer,  
offering higher linearity and 1dB compression, wider  
bandwidth, and lower output spurious levels. Integrated  
RF and LO transformers and LO buffer amplifiers allow a  
very compact solution.  
n
High IIP3: +26.9dBm at 1950MHz  
n
1.9dB Conversion Gain  
n
Low Noise Figure: 11.8dB at 1950MHz  
n
16.5dB NF Under 5dBm Blocking  
n
Low Power: 294mW  
n
Wide IF Frequency Range Up to 2.5GHz  
n
LO Input 50Ω Matched when Shutdown  
n
–40°C to 105°C Operation (T )  
Very Small Solution Size  
C
The RF input is 50Ω matched from 1.4GHz to 3GHz, and  
easily matched for higher or lower RF frequencies with  
simple external matching. The LO input is 50Ω matched  
from 1GHz to 4GHz, even when the IC is disabled. The LO  
input is easily matched for higher or lower frequencies, as  
low as 300MHz, with simple external matching. The low  
capacitance differential IF output is usable up to 2.5GHz.  
n
n
n
Pin Compatible with LT5557  
16-Lead (4mm × 4mm) QFN package  
applicaTions  
n
Wireless Infrastructure Receivers  
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.  
n
DPD Observation Receivers  
n
CATV Infrastructure  
Typical applicaTion  
DPD Observation Receiver Mixer with 500MHz IF Bandwidth and  
+13dBm Input P1dB into 200Ω Load  
Voltage Conversion Gain, IIP3  
and NF vs IF Frequency  
LO  
1.65GHz  
0dBm  
28  
26  
24  
3.9pF  
IIP3  
LO  
LTC5567  
200Ω LOAD  
330pF  
390nH  
22 RF = 1.69GHz TO 2.24GHz  
LO = 1.65GHz  
+
20  
IF  
Z
Z
T
= 50Ω  
RF  
IF  
C
18  
16  
14  
12  
10  
8
2.7pF  
LO  
RF  
249Ω  
249Ω  
100Ω  
100Ω  
= 200Ω DIFFERENTIAL  
1.69GHz  
= 25°C  
IF  
TO  
RF  
EN  
AMP  
2.24GHz  
NF  
RF  
390nH  
330pF  
IF  
5567 TA01a  
G
V
EN  
BIAS  
6
V
IADJ  
CC  
4
10nF  
3.3V  
89mA  
40 90 140 190 240 290 340 390 440 490 540 590  
IF FREQUENCY (MHz)  
10nF  
5567 TA01b  
5567f  
1

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