MF5 datasheet(2/18 Pages) TI1

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TLH5066

February 1995

MF5 Universal Monolithic Switched Capacitor Filter

General Description

The MF5 consists of an extremely easy to use general pur-

pose CMOS active filter building block and an uncommitted

op amp The 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 all-

pass or notch functions and the remaining 2 output pins

perform bandpass and lowpass functions The center fre-

quency 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 be

used for cascading purposes for obtaining additional all-

pass 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

Features

Low cost

14-pin DIP or 14-pin Surface Mount (SO) wide-body

package

Easy to use

Clock to center frequency ratio accuracy g06%

Filter cutoff frequency stability directly dependent on

external clock quality

Low sensitivity to external component variations

Separate highpass (or notch or allpass) bandpass low-

pass outputs

focQ range up to 200 kHz

Operation up to 30 kHz (typical)

Additional uncommitted op-amp

Block and Connection Diagrams

TLH5066 – 1

All Packages

TLH5066 – 2

Top View

Order Number MF5CN

See NS Package Number N14A

Order Number MF5CWM

See NS Package Number M14B

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A

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