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LTC1264CN PDF预览

LTC1264CN

更新时间: 2024-01-25 02:24:06
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
16页 346K
描述
High Speed, Quad Universal Filter Building Block

LTC1264CN 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:SOP,
针数:24Reach Compliance Code:compliant
风险等级:5.09有源滤波器类型:SWITCHED CAPACITOR FILTER
中心频率或截止频率最大范围:250 kHz中心频率或截止频率最小范围:0.1 kHz
JESD-30 代码:R-PDSO-G24JESD-609代码:e3
长度:15.39 mm湿度敏感等级:1
负电源电压最大值(Vsup):-8 V负电源电压最小值(Vsup):-2.375 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:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):260
极和零点:2 AND 0认证状态:Not Qualified
响应:UNIVERSAL座面最大高度:2.642 mm
最大供电电压 (Vsup):8 V最小供电电压 (Vsup):2.375 V
标称供电电压 (Vsup):5 V表面贴装:YES
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:1.27 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:BUTTERWORTH/CHEBYSHEV宽度:7.5 mm
Base Number Matches:1

LTC1264CN 数据手册

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LTC1264  
U
U
U
PI FU CTIO S  
V +,V(Pins7,19):PowerSupplyPins.TheV+ (Pin7)and  
the V(Pin 19) should each be bypassed with a 0.1µF  
capacitor to an adequateanalogground. The filter’s power  
supplies should be isolated from other digital or high  
voltage analog supplies. A low noise linear supply is  
recommended. Using a switching power supply will lower  
the signal-to-noise ratio of the filter. The supply during  
power-up should have a slew rate less than 1V/µs. When  
V+ is applied before Vand Vis allowed to go above  
ground, a diode should clamp Vto prevent latch-up.  
Figures 1 and 2 show typical connections for dual and  
single supply operation.  
AGND (Pin 6): Analog Ground Pin. The filter performance  
depends on the quality of the analog signal ground. For  
either dual or single supply operation, an analog ground  
plane surrounding the package is recommended. The  
analog ground plane should be connected to any digital  
ground at a single point. For dual supply operation, Pin 6  
should be connected to the analog ground plane. For  
single supply operation, Pin 6 should be biased at 1/2  
supplyandshouldbebypassedtotheanaloggroundplane  
with at least a 1µF capacitor (Figure 2). For single 5V  
operation and fCLK greater than 1MHz, pin 6 should be  
biased at 2V. This minimizes passband gain and phase  
variations.  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
1
2
3
4
5
6
7
8
9
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
ANALOG  
GROUND  
PLANE  
ANALOG  
GROUND  
PLANE  
3
–7.5V  
4
*
5k  
+
5
*
*
*
*
V
0.1µF  
+
6
V /2  
+
LTC1264  
7
LTC1264  
+
5k  
V
7.5V  
1µF  
8
0.1µF  
9
10  
11  
12  
10  
11  
12  
DIGITAL  
GROUND  
PLANE  
DIGITAL  
GROUND  
PLANE  
STAR  
SYSTEM  
GROUND  
STAR  
SYSTEM  
GROUND  
200Ω  
200Ω  
CLOCK  
SOURCE  
CLOCK  
SOURCE  
1264 F01  
*
OPTIONAL, 1N4148, 1N5819  
1264 F02  
*
FOR MODE 3, THE S NODE PINS 5, 8,  
17, 20 SHOULD BE TIED TO PIN 6  
Figure 1. Dual Supply Ground Plane Connections  
Figure 2. Single Supply Ground Plane Connections  
5

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