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LTC1264CN PDF预览

LTC1264CN

更新时间: 2024-02-04 10:56:40
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  
High Speed, Quad Universal  
Filter Building Block  
U
DESCRIPTIO  
EATURE  
S
F
The LTC®1264 consists of four identical, high speed 2nd  
order switched-capacitor filter building blocks designed  
for center frequencies up to 250kHz. Each building block,  
together with three to five resistors, can provide 2nd order  
functions like lowpass, highpass, bandpass and notch.  
Thecenterfrequencyofeach2ndordersectionistunedvia  
an external clock. The clock-to-center frequency ratio is  
internally set to 20:1, but it can be modified via external  
resistors.  
High Speed, Up to 250kHz Center Frequency  
Four Identical Filters in a 0.3" Wide Package  
Clock-to-Center Frequency Ratio of 20:1  
Double-Sampling, Improved Aliasing  
Operates from ±2.37V to ±8V Power Supplies  
Customized Version with Internal Resistors Available  
Low Noise  
Low Harmonic Distortion  
O U  
The aliasing performance of the LTC1264 is improved by  
double-sampling each 2nd order section. Input signal  
frequencies can reach up to twice the clock frequency  
before any alias products will be detectable.  
PPLICATI  
S
A
Digital Communications  
Spread Spectrum Communications  
Spectral Analysis  
Loran Receivers  
Instrumentation  
For Q 5 and for TA < 85°C, the maximum center  
frequency is 160kHz. For Q 2, the maximum center  
frequency is 250kHz. Up to 8th order filters can be realized  
by cascading all four 2nd order sections.  
A customized monolithic version of the LTC1264 includ-  
ing internal thin film resistors can be obtained.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI  
Clock-Tunable 8th Order Bandpass Filter, fCENTER = fCLK/20  
50k  
Gain vs Frequency  
50k  
100kHz Bandpass, f–3dB Bandwidth = fCENTER/10  
IN  
INV B  
HPB/NB  
BPB  
INV C  
HPC/NC  
BPC  
10k  
50k  
10k  
50k  
10  
0
MAXIMUM POWER  
CENTER  
LPB  
LPC  
–10  
–20  
–30  
–40  
–50  
f
SUPPLY  
SB  
SC  
160kHz  
120kHz  
60kHz  
±7.5V  
±5V  
Single 5V  
LTC1264  
AGND  
V
0.1µF  
+
f
V
CLK  
SD  
CLK  
0.1µF  
SA  
LPA  
LPD  
–60  
OUT  
50k  
10k  
BPA  
BPD  
–70  
50k  
10k  
HPA/NA  
INV A  
HPD/ND  
INV D  
–80  
10k  
100k  
1M  
FREQUENCY (Hz)  
1264 TA02  
50k  
50k  
1264 TA01  
1

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