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| 型号： | MF4 |
| 厂商： | National Semiconductor Corporation |
| 英文描述： | MF4 4th Order Switched Capacitor Butterworth Lowpass Filter |
| 中文描述： | MF4四阶巴特沃斯低通开关电容滤波器 |
| 文件页数： | 1/14页 |
| 文件大小： | 481K |
| 代理商： | MF4 |
MF4 4th Order Switched Capacitor Butterworth
Lowpass Filter
General Description
The MF4 is a versatile, easy to use, precision 4th order But-
terworth low-pass filter. Switched-capacitor techniques elimi-
nate
external
component
clock-tunable cutoff frequency. The ratio of the clock fre-
quency to the low-pass cutoff frequency is internally set to 50
to 1. A Schmitt trigger clock input stage allows two clocking
options, either self-clocking (via an external resistor and ca-
pacitor) for stand-alone applications, or for tighter cutoff fre-
quency control an external TTL or CMOS logic compatible
clock can be applied. The maximally flat passband frequency
response together with a DC gain of 1 V/V allows cascading
MF4 sections together for higher order filtering.
requirements
and
allow
a
Features
n
Low Cost
n
Easy to use
n
8-pin mini-DIP or 14-pin wide-body S.O.
n
No external components
n
5V to 14V supply voltage
n
Cutoff frequency range of 0.1 Hz to 20 kHz
n
Cutoff frequency accuracy of
±
0.3% typical
n
Cutoff frequency set by external clock
n
Separate TTL and CMOS/Schmitt-trigger clock inputs
Connection Diagram
Block Diagram
TRI-STATE
is a registered trademark of National Semiconductor Corp.
Dual-In-Line Package
DS005064-2
Order Number MF4CN-50
See NS Package Number N08E
DS005064-1
July 1999
M
1999 National Semiconductor Corporation
DS005064
www.national.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MF-40 | 制造商:COOPER INDUSTRIES 功能描述:UNV WRNCH STANDARD 3/8 FMALE S |
| MF4001 | 制造商:CYSTEKEC 制造商全称:Cystech Electonics Corp. 功能描述:SURFACE MOUNT DIODES |
| MF4002 | 制造商:CYSTEKEC 制造商全称:Cystech Electonics Corp. 功能描述:SURFACE MOUNT DIODES |
| MF4003 | 制造商:CYSTEKEC 制造商全称:Cystech Electonics Corp. 功能描述:SURFACE MOUNT DIODES |
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