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LMF100CIWM Fiches technique(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
No de pièce LMF100CIWM
Description  High Performance Dual Switched Capacitor Filter
PDF  28 Pages
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Fabricant  NSC [National Semiconductor (TI)]
Site Internet  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMF100CIWM Fiches technique(HTML) 13 Page - National Semiconductor (TI)

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2.0 Modes of Operation
The LMF100 is a switched capacitor (sampled data) filter. To
fully describe its transfer functions, a time domain analysis is
appropriate. Since this is cumbersome, and since the
LMF100 closely approximates continuous filters, the follow-
ing discussion is based on the well-known frequency do-
main. Each LMF100 can produce two full 2nd order func-
tions. See
Table 1 for a summary of the characteristics of the
various modes.
MODE 1: Notch 1, Bandpass, Lowpass Outputs:
f
notch = f0 (See Figure 7)
MODE 1a: Non-Inverting BP, LP (See
Figure 8)
Note: VIN should be driven from a low impedance (<1kΩ) source.
DS005645-11
FIGURE 7. MODE 1
DS005645-4
FIGURE 8. MODE 1a
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