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LTC1068-50CG#TRPBF

更新时间： 2024-11-19 13:09:39
品牌 Logo 应用领域
凌特 - Linear 有源滤波器过滤器光电二极管LTE时钟
页数 文件大小 规格书
30页 388K
描述
LTC1068 - Clock-Tunable, Quad Second Order, Filter Building Blocks; Package: SSOP; Pins: 28; Temperature Range: 0°C to 70°C

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LTC1068-50CG#TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：SSOP包装说明：SSOP, SSOP28,.3
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5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：0.002 kHz
JESD-30 代码：R-PDSO-G28JESD-609代码：e3
长度：10.2 mm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：28
最高工作温度：70 °C最低工作温度：
阶次：2ND封装主体材料：PLASTIC/EPOXY
封装代码：SSOP封装等效代码：SSOP28,.3
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：260极和零点：2 AND 0
电源：+-1.57/+-5 V认证状态：Not Qualified
响应：UNIVERSAL座面最大高度：2 mm
子类别：Active Filters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：YES技术：CMOS
温度等级：COMMERCIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：0.65 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
传递特性：RESISTOR PROGRAMMABLE宽度：5.3 mm
Base Number Matches：1

LTC1068-50CG#TRPBF 数据手册

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LTC1068 Series  
Clock-Tunable, Quad  
Second Order, Filter Building Blocks  
FEATURES  
DESCRIPTION  
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).Externalresistorscanmodifytheclock-  
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 FilterCAD™ filter  
design software for Windows.  
n
Four Identical 2nd Order Filter Sections in an  
SSOP Package  
2nd Order Section Center Frequency Error:  
0.3% Typical and 0.ꢀ% ꢁaꢂiꢃuꢃ  
Low Noise per 2nd Order Section, Q ≤ 5:  
n
n
LTC106ꢀ-200 50µV  
LTC106ꢀ-50 75µV  
, LTC106ꢀ 50µV  
RꢁS  
RꢁS  
, LTC106ꢀ-25 90µV  
Low Power SuppRlyꢁCSurrent: 4.5mA, SinRgꢁleS5V,  
LTC1068-50  
n
n
Operation with 5V Power Supply, Single 5V  
Supply or Single 3.3V Supply  
APPLICATIONS  
n
Lowpass or Highpass Filters:  
LTC1068-200, 0.5Hz to 25kHz; LTC1068, 1Hz to  
50kHz; LTC1068-50, 2Hz to 50kHz; LTC1068-25,  
4Hz to 200kHz  
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.  
n
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  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
FilterCAD is a trademark of Linear Technology Corporation. All other trademarks are the property  
of their respective owners.  
TYPICAL APPLICATION  
Dual, ꢁatched, 4th Order Butterworth Lowpass Filters, Clock-Tunable Up  
to 200kHz f – 3dB = fCLK/25, 4th Order Filter Noise = 60µVRꢁS  
R12 14k  
R11 20k  
Gain vs Frequency  
1
2
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
V
INV B  
HPB/NB  
BPB  
INV C  
HPC/NC  
BPC  
IN1  
R21 14k  
R31 20k  
R22 20k  
R32 10k  
10  
0
3
4
–10  
–20  
–30  
–40  
–50  
–60  
–70  
–80  
V
LPB  
LPC  
OUT1  
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  
0.1  
1
10  
V
LPA  
LPD  
OUT2  
R33 20k  
R23 14k  
R34 10k  
R24 20k  
RELATIVE FREQUENCY [f /(f – 3dB)]  
IN  
BPA  
HPA/NA  
INVA  
BPD  
1068 TA02  
HPD/ND  
INVD  
R13 20k  
V
IN2  
R14 14k  
1068 TA01  
1068fc  
1
1234567...30

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