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LTC1069-1IN8 PDF预览

LTC1069-1IN8

更新时间： 2024-01-09 08:25:10
品牌 Logo 应用领域
凌特 - Linear 有源滤波器过滤器光电二极管LTE
页数 文件大小 规格书
8页 242K
描述
Low Power, 8th Order Progressive Elliptic, Lowpass Filter

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LTC1069-1IN8 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：DIP,
针数：8Reach Compliance Code：compliant
风险等级：5.1有源滤波器类型：SWITCHED CAPACITOR FILTER
中心频率或截止频率最大范围：8 kHz中心频率或截止频率最小范围：
JESD-30 代码：R-PDIP-T8JESD-609代码：e3
湿度敏感等级：1负电源电压最大值（Vsup）：-5.5 V
负电源电压最小值（Vsup）：-1.57 V标称负供电电压 (Vsup)：-5 V
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：DIP
封装形状：RECTANGULAR封装形式：IN-LINE
峰值回流温度（摄氏度）：NOT SPECIFIED极和零点：8 AND 0
认证状态：Not Qualified响应：LOWPASS
座面最大高度：3.937 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：1.57 V标称供电电压 (Vsup)：5 V
表面贴装：NO技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：THROUGH-HOLE端子节距：2.54 mm
端子位置：DUAL处于峰值回流温度下的最长时间：NOT SPECIFIED
传递特性：ELLIPTIC宽度：7.62 mm
Base Number Matches：1

LTC1069-1IN8 数据手册

 浏览型号LTC1069-1IN8的Datasheet PDF文件第2页浏览型号LTC1069-1IN8的Datasheet PDF文件第3页浏览型号LTC1069-1IN8的Datasheet PDF文件第4页浏览型号LTC1069-1IN8的Datasheet PDF文件第5页浏览型号LTC1069-1IN8的Datasheet PDF文件第6页浏览型号LTC1069-1IN8的Datasheet PDF文件第8页 
LTC1069-1  
U
W U U  
APPLICATIONS INFORMATION  
the input pin (4) shorted to the AGND pin and depends on  
PC board layout and on the value of the power supplies.  
With proper layout techniques the values of the clock  
feedthrough are shown on Table 2.  
supplyvoltage(seeTable3). Theclockfeedthroughspeci-  
fications are not part of the wideband noise.  
Table 3. Wideband Noise  
V
WIDEBAND NOISE  
S
3.3V  
5V  
±5V  
100µV  
108µV  
112µV  
Table 2. Clock Feedthrough  
RMS  
RMS  
RMS  
V
CLOCK FEEDTHROUGH  
S
3.3V  
5V  
10µV  
40µV  
RMS  
RMS  
Aliasing  
±5V  
160µV  
RMS  
Aliasing is an inherent phenomenon of sampled data  
systems and it occurs for input frequencies approaching  
the sampling frequency. The internal sampling frequency  
of the LTC1069-1 is 100 times its cutoff frequency. For  
instance, if a 98kHz, 100mVRMS signal is applied at the  
input of an LTC1069-1 operating with a 100kHz clock, a  
2kHz, 28µVRMS alias signal will appear at the filter output.  
Table 4 shows details.  
Any parasitic switching transients during the rise and fall  
edges of the incoming clock are not part of the clock  
feedthroughspecifications.Switchingtransientshavefre-  
quency contents much higher than the applied clock; their  
amplitude strongly depends on scope probing techniques  
as well as grounding and power supply bypassing. The  
clock feedthrough can be reduced, if bothersome, by  
addingasingleRClowpassfilterattheoutputpin(8)ofthe  
LTC1069-1.  
Table 4. Aliasing (fCLK = 100kHz)  
INPUT FREQUENCY  
(V = 1V  
OUTPUT LEVEL  
(Relative to Input)  
(dB)  
OUTPUT FREQUENCY  
(Aliased Frequency)  
(kHz)  
)
RMS  
IN  
Wideband Noise  
(kHz)  
/f = 100:1, f = 1kHz  
CUTOFF  
f
The wideband noise of the filter is the total RMS value of  
the device’s noise spectral density and determines the  
operating signal-to-noise ratio. Most of the wideband  
noise frequency contents lie within the filter passband.  
The wideband noise cannot be reduced by adding post  
filtering. Thetotalwidebandnoiseisnearlyindependentof  
the clock frequency and depends slightly on the power  
CLK  
C
96 (or 104)  
97 (or 103)  
98 (or 102)  
985. (or 101.5)  
99 (or 101)  
99.5 (or 100.5)  
–90.0  
–86.0  
–71.0  
–56.0  
–1.1  
4.0  
3.0  
2.0  
1.5  
1.0  
0.5  
–0.21  
U
TYPICAL APPLICATIONS  
Single 3.3V Supply Operation with Output Buffer  
Single 5V Operation with Power Shutdown  
3.3V  
5V  
SHUTDOWN  
ON  
CMOS LOGIC  
0.1µF  
1
2
3
4
8
7
6
5
AGND  
V
V
OUT  
OUT  
1
2
3
4
8
AGND  
V
OUT  
+
+
–
0.47µF  
0.47µF  
0.1µF  
V
V
7
6
5
1/2 LT1366  
+
–
V
OUT  
V
V
LTC1069-1  
NC  
0.1µF  
LTC1069-1  
NC  
NC  
–
NC  
f
≤
CLK  
750kHz  
5V  
V
IN  
V
CLK  
IN  
f
CLK  
500kHz  
3.3V  
0V  
1069-1 TA05  
0V  
V
V
CLK  
IN  
IN  
1069-1 TA04  
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.  
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-  
tationthattheinterconnectionofitscircuitsasdescribedhereinwillnotinfringeonexistingpatentrights.  
7
1...45678

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