RoHS Compliance Information	Size in Kbytes	Date
MF6 6th Order Switched Capacitor Butterworth Lowpass Filter	861 Kbytes	23-Jun-99	Download
MF6 6th Order Switched Capacitor Butterworth Lowpass Filter (Japanese)	756 Kbytes

Obsolete Versions

General Description

The MF6 is a versatile easy to use, precision 6th order Butterworth lowpass active filter. Switched capacitor techniques eliminate external component requirements and allow a clock tunable cutoff frequency. The ratio of the clock frequency to the lowpass cutoff frequency is internally set to 50 to 1 (MF6-50) or 100 to 1 (MF6-100). A Schmitt trigger clock input stage allows two clocking options, either self-clocking (via an external resistor and capacitor) for stand-alone applications, or an external TTL or CMOS logic compatible clock can be used for tighter cutoff frequency control. The maximally flat passband frequency response together with a DC gain of 1 V/V allows cascading MF6 sections for higher order filtering. In addition to the filter, two independent CMOS op amps are included on the die and are useful for any general signal conditioning applications.

Application Notes

Title	Size in Kbytes	Date
AN-779: A Basic Introduction to Filters - Active, Passive and Switched-Capacitor	399 Kbytes	5-Aug-95	Download
AN-779 (Japanese): A Basic Introduction to Filters - Active, Passive and Switched-Capacitor	534 Kbytes