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LTC1069-7

更新时间： 2024-11-21 14:58:15
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
10页 163K
描述
线性相位 8 阶低通滤波器

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中文翻译

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LTC1069-7 数据手册

 浏览型号LTC1069-7的Datasheet PDF文件第2页浏览型号LTC1069-7的Datasheet PDF文件第3页浏览型号LTC1069-7的Datasheet PDF文件第4页浏览型号LTC1069-7的Datasheet PDF文件第5页浏览型号LTC1069-7的Datasheet PDF文件第6页浏览型号LTC1069-7的Datasheet PDF文件第7页 
LTC1069-7  
Linear Phase  
8th Order Lowpass Filter  
cutoff frequency of the LTC1069-7 is set by an external  
clock and is equal to the clock frequency divided by 25.  
The ratio of the internal sampling frequency to the cutoff  
frequency is 50:1 that is, the input signal is sampled  
twice per clock cycle to lower the risk of aliasing. The  
LTC1069-7 can be operated from a single 5V supply up  
to dual 5V supplies.  
FEATURES  
n
8th Order, Linear Phase Filter in SO-8 Package  
Raised Cosine Amplitude Response  
–43dB Attenuation at 2× f  
Wideband Noise: 140μV  
n
n
CUTOFF  
n
RMS  
n
Operates from Single 5V Supply to  
5V ꢀower Supplies  
Clock-Tunable to 200kHz with 5V Supplies  
Clock-Tunable to 120kHz with Single 5V Supply  
The gain and phase response of the LTC1069-7 can be  
used in digital communication systems where pulse  
shaping and channel bandwidth limiting must be carried  
out. Any system that requires an analog filter with linear  
phase and sharper roll off than conventional Bessel filters  
can use the LTC1069-7.  
n
n
APPLICATIONS  
n
Digital Communication Filter  
The LTC1069-7 has a wide dynamic range. With 5V  
n
Antialiasing Filter with Linear ꢀhase  
supplies and an input range of 0.1V  
to 2V  
, the  
RMS  
RMS  
n
Smoothing Filters  
signal-to-(noise+THD)ratiois≥ 60dB.Thewidebandnoise  
oftheLTC1069-7is140μV .UnlikeotherLTC1069-Xfilters,  
RMS  
DESCRIPTION  
the typical passband gain of the LTC1069-7 is equal to –1V/V.  
The LTC®1069-7 is a monolithic, clock-tunable, linear  
phase, 8th order lowpass filter. The amplitude response  
of the filter approximates a raised cosine filter with an  
alphaofone. Thegainatthecutofffrequencyis–3dBand  
the attenuation at twice the cutoff frequency is 43dB. The  
The LTC1069-7 is available in an SO-8 package.  
Otherfilterresponseswithlowerpower/speedspecifications  
can be obtained. ꢀlease contact LTC Marketing.  
L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
TYPICAL APPLICATION  
Frequency Response  
10  
0
Single 5V Supply, Linear Phase 100kHz Lowpass Filter  
AGND  
V
V
OUT  
OUT  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
5V  
IN  
+
–
0.47μF  
V
V
0.1μF  
LTC1069-7  
NC  
NC  
f
= 2.5MHz  
1069-7 TA01  
V
V
CLK  
CLK  
IN  
10  
100  
1000  
FREQUENCY (kHz)  
1069-7 TA02  
10697fa  
1
1234567...10

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