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LTC1068IN#TRPBF

更新时间： 2024-01-01 02:53:43
品牌 Logo 应用领域
凌特 - Linear LTE光电二极管有源滤波器
页数 文件大小 规格书
28页 397K
描述
IC QUAD SWITCHED CAPACITOR FILTER, RESISTOR PROGRAMMABLE, UNIVERSAL, PDIP24, 0.300 INCH, LEAD FREE, PLASTIC, DIP-24, Active Filter

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LTC1068IN#TRPBF 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：DIP
包装说明：DIP,针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.57
有源滤波器类型：SWITCHED CAPACITOR FILTER中心频率或截止频率最大范围：50 kHz
中心频率或截止频率最小范围：0.001 kHzJESD-30 代码：R-PDIP-T24
JESD-609代码：e3湿度敏感等级：1
负电源电压最大值（Vsup）：-5.5 V标称负供电电压 (Vsup)：-5 V
功能数量：4端子数量：24
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：2 AND 0
认证状态：Not Qualified响应：UNIVERSAL
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：3.14 V
标称供电电压 (Vsup)：5 V表面贴装：NO
温度等级：INDUSTRIAL端子面层：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：RESISTOR PROGRAMMABLE宽度：7.62 mm
Base Number Matches：1

LTC1068IN#TRPBF 数据手册

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LTC1068 Series  
Clock-Tunable, Quad  
Second Order, Filter Building Blocks  
U
FEATURES  
DESCRIPTIO  
The LTC®1068 product family consists of four monolithic  
clock-tunablefilterbuildingblocks.Eachproductcontains  
fourmatched,lownoise,highaccuracy2ndorderswitched-  
capacitorfiltersections. Anexternalclocktunesthecenter  
frequency of each 2nd order filter section. The LTC1068  
products differ only in their clock-to-center frequency  
ratio. The clock-to-center frequency ratio is set to 200:1  
(LTC1068-200), 100:1 (LTC1068), 50:1 (LTC1068-50) or  
25:1 (LTC1068-25). External resistors can modify the  
clock-to-center frequency ratio. High performance, quad  
2nd order, dual 4th order or 8th order filters can be  
designed with an LTC1068 family product. Designing  
filters with an LTC1068 product is fully supported by  
FilterCADTM filter design software for Windows®.  
■
Four Identical 2nd Order Filter Sections in an  
SSOP Package  
■
■
2nd Order Section Center Frequency Error:  
±
0.3% Typical and ±0.8% Maximum  
Low Noise per 2nd Order Section, Q ≤ 5:  
LTC1068-200 50µV  
LTC1068-50 75µV  
, LTC1068 50µV  
RMS  
RMS  
, LTC1068-25 90µV  
RMS  
RMS  
■
■
Low Power Supply Current: 4.5mA, Single 5V,  
LTC1068-50  
Operation with ±5V Power Supply, Single 5V  
Supply or Single 3.3V Supply  
U
APPLICATIO S  
■
Lowpass or Highpass Filters:  
The LTC1068 products are available in a 28-pin SSOP  
surface mount package. A customized version of an  
LTC1068 family product can be obtained in a 16-lead SO  
package with internal thin-film resistors. Please contact  
LTC Marketing for details.  
LTC1068-200, 0.5Hz to 25kHz; LTC1068, 1Hz to  
50kHz; LTC1068-50, 2Hz to 50kHz; LTC1068-25,  
4Hz to 200kHz  
■
Bandpass or Bandreject (Notch) Filters:  
LTC1068-200, 0.5Hz to 15kHz; LTC1068, 1Hz to  
30kHz; LTC1068-50, 2Hz to 30kHz; LTC1068-25,  
4Hz to 140kHz  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
FilterCAD is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
U
TYPICAL APPLICATIO  
Dual, Matched, 4th Order Butterworth Lowpass Filters, Clock-Tunable Up  
to 200kHz f – 3dB = f /25, 4th Order Filter Noise = 60µV  
CLK  
RMS  
R12 14k  
R11 20k  
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
Gain vs Frequency  
V
INV B  
HPB/NB  
BPB  
INV C  
HPC/NC  
BPC  
IN1  
R21 14k  
R31 20k  
R22 20k  
R32 10k  
10  
0
3
4
V
LPB  
LPC  
OUT1  
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
5
SB  
SC  
LTC1068-25  
6
–
–5V  
NC  
V
1µF  
7
AGND  
NC  
CLK  
8
+
5V  
f
= (25)(f – 3dB)  
CLK  
V
0.1µF  
9
NC  
NC  
10  
11  
12  
13  
14  
SA  
SD  
V
LPA  
LPD  
OUT2  
0.1  
1
10  
R33 20k  
R23 14k  
R34 10k  
R24 20k  
BPA  
HPA/NA  
INVA  
BPD  
RELATIVE FREQUENCY [f /(f – 3dB)]  
IN  
1068 TA02  
HPD/ND  
INVD  
R13 20k  
V
IN2  
R14 14k  
1068 TA01  
1068fb  
1
1234567...28

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