LMF120 Datasheet - National Semiconductor

LMF120, Mask-Programmable Switched-Capacitor Active Filter System

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Features

* Mask-programmable for virtually any filter response
* All filter types (low-pass, high-pass, bandpass, notch, all-pass)
* All filter approximations (Butterworth, Chebyshev, Ellip- tic, Bessel, etc.
)
* Up to 12 poles and right-half-plane zeros in one 16-pin package

Applications

* Anti-alias filters
* Real-time audio analyzers
* Biomedical instrumentation
* Cellular telephones Simplified Block Diagram BIQUAD 1 IN 1 11 IN 2 12 IN 3 14 y+ 16 v- 8 GND 8 IS/H 21 I 1 S/H 3 BIQUAD 2 BIQUAD 3 BIQUAD 4 BIQUAD 5 BIQUAD 6 6 XTAL 1 7 XTAL 2 10 eLK

LMF120-NationalSemiconductor.pdf