peculiarity
Easy to use
Ratio accuracy of clock center frequency± 0.6%
The cutoff frequency stability of the filter is directly dependent on the external clock quality
Low sensitivity to changes in external components
Independent high-pass (or notched or all-pass), band-pass, low-pass output
The range of F O × Q can reach 200 kHz
Operates to 30 kHz
20-pin 0.3 [Premier] wide dual in-line package
20-pin surface mount (SO) wide-body package
illustrate
The MF10 consists of 2 independent and very easy to use, general purpose CMOS active filter building blocks. Each block, coupled with an external clock and 3 to 4 resistors, can produce a variety of second-order functions. Each building block has 3 output pins. An output can be configured to perform an all-pass, high-pass or notch function; The remaining two output pins perform low-pass and band-pass functions. The low-pass and band-pass second-order functions of the center frequency can be directly dependent on the clock frequency, or they can depend on the clock frequency and external resistivity. The notch and all-pass functions of the center frequency are directly dependent on the clock frequency, while the center frequency of the high-pass is dependent on the two resistor ratios and the clock. The function of the fourth order can be carried out in cascading two second-order MF10 blocks; Functions above the fourth order are available by cascading MF10 packages. Any classical filter configuration can be formed (e.g. Butterworth, Bessel, Kaul and Chebyshev).
For pin-compatible devices, improve performance LMF100 datasheet.