 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MF4 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
|
|
||||||||||||||||||||||||||||||
MF4 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
|
|
1 / 14 page 
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 requirements and allow a 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. 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 © 1999 National Semiconductor Corporation DS005064 www.national.com |
English ▼
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
