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LTC1068CG-25 PDF预览

LTC1068CG-25

更新时间: 2024-02-23 09:28:26
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
28页 538K
描述
Clock-Tunable, Quad Second Order, Filter Building Blocks

LTC1068CG-25 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:SSOP
包装说明:SSOP,针数:28
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.02
有源滤波器类型:SWITCHED CAPACITOR FILTER中心频率或截止频率最大范围:200 kHz
中心频率或截止频率最小范围:0.004 kHzJESD-30 代码:R-PDSO-G28
JESD-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:封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):250
极和零点:2 AND 0认证状态:Not Qualified
响应:UNIVERSAL座面最大高度:2 mm
最大供电电压 (Vsup):5.5 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
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:NOT SPECIFIED
传递特性:RESISTOR PROGRAMMABLE宽度:5.3 mm
Base Number Matches:1

LTC1068CG-25 数据手册

 浏览型号LTC1068CG-25的Datasheet PDF文件第7页浏览型号LTC1068CG-25的Datasheet PDF文件第8页浏览型号LTC1068CG-25的Datasheet PDF文件第9页浏览型号LTC1068CG-25的Datasheet PDF文件第11页浏览型号LTC1068CG-25的Datasheet PDF文件第12页浏览型号LTC1068CG-25的Datasheet PDF文件第13页 
LTC1068 Series  
U
U
U
PIN FUNCTIONS  
path.A200resistorbetweenclocksourceandPin11will  
slow down the rise and fall times of the clock to further  
reduce charge coupling (Figures 1 and 2).  
LT®1354  
1k  
+
Output Pins  
1068 F03  
Each 2nd order section of an LTC1068 device has three  
outputs that typically source 17mA and sink 6mA. Driving  
coaxial cables or resistive loads less than 20k will degrade  
the total harmonic distortion performance of any filter  
design. When evaluating the distortion or noise perfor-  
mance of a particular filter design implemented with a  
LTC1068 device, the final output of the filter should be  
buffered with a wideband, noninverting high slew rate  
amplifier (Figure 3).  
Figure 3. Wideband Buffer  
In a printed circuit layout any signal trace, clock source  
trace or power supply trace should be at least 0.1 inches  
away from any inverting input pins  
Summing Input Pins  
Thesearevoltageinputpins.Ifused,theyshouldbedriven  
with a source impedance below 5k. When they are not  
used, they should be tied to the analog ground pin.  
Inverting Input Pins  
Thesepinsaretheinvertinginputsofinternalopampsand  
are susceptible to stray capacitive coupling from low  
impedance signal outputs and power supply lines.  
Thesummingpinconnectionsdeterminethecircuittopol-  
ogy (mode) of each 2nd order section. Please refer to  
Modes of Operation.  
W
BLOCK DIAGRAM  
HPA/NA  
(13)  
BPA  
(12)  
LPA  
(11)  
DEVICE  
LTC1068  
LTC1068-200 10k 10k  
LTC1068-25  
LTC1068-50 11.3k 8.6k  
R
R
B
A
INV A  
(14)  
+
+
+
+
+
+
Σ
AGND  
(7)  
+
*THE RATIO R /R VARIES ±2%  
A
B
BPB  
(3)  
LPB  
(4)  
HPB/NB  
(2)  
SA  
(10)  
+
V
(8)  
INV B  
(1)  
+
+
+
+
+
+
Σ
R *  
A
CLK (21)  
+
HPC/NC  
(27)  
LPC  
(25)  
BPC  
(26)  
R *  
B
V
(23)  
AGND (7)  
SB  
(5)  
INV C  
(28)  
NC (6)  
NC (9)  
+
Σ
LPD  
(18)  
HPD/ND  
(16)  
BPD  
(17)  
NC (20)  
NC (22)  
SC  
(24)  
INV D  
(15)  
+
Σ
PIN 28-LEAD SSOP PACKAGE  
1068 BD  
SD  
(19)  
10  

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