MF5CWM.pdf

Features:

• Low cost
• 14-pin DIP or 14-pin Surface Mount (SO) wide-body package
• Easy to us
• Clock to center frequency ratio accuracy g0.6%
• Filter cutoff frequency stability directly dependent on external clock quality
• Low sensitivity to external component variations
• Separate highpass (or notch or allpass), bandpass, lowpass outputs
• focQ range up to 200 kHz
• Operation up to 30 kHz (typical)
• Additional uncommitted op-amp


Specifications

Supply Voltage (Va b Vb)                                                                    14V
Power Dissipation TA e 25ßC (note 1)                                         500 mW
Storage Temp.                                                                                150ßC
Soldering Information:
N Package: 10 sec.                                                                         260ßC
SO Package: Vapor phase (60 sec.)                                               215ßC
Infrared (15 sec.)                                                                           220ßC


Description

The MF5 consists of an extremely easy to use, general purpose CMOS active filter building block and an uncommitted
op amp. The  MF5  filter building block, together with an external clock and a few resistors, can produce various second order functions. The filter building block has 3 output pins. One of the output pins can be configured to perform highpass, allpass or notch functions and the remaining 2 output pins perform bandpass and lowpass functions. The center frequency of the filter can be directly dependent on the clock frequency or it can depend on both clock frequency and external resistor ratios. The uncommitted op amp can beused for cascading purposes, for obtaining additional allpass and notch functions, or for various other applications. Higher order filter functions can be obtained by cascading several MF5s or by using the MF5 in conjuction with the MF10 (dual switched capacitor filter building block). The MF5 is functionally compatible with the MF10. Any of the classical filter configurations (such as Butterworth, Bessel, Cauer and Chebyshev) can be formed.