Datasheet

LM146, LM346
www.ti.com SNOSBH5B –MAY 2004–REVISED SEPTEMBER 2004
Circuit Synthesis Equations
•For nothing but a notch output: R
IN
=R, C′=C. (3)
Figure 37. Capacitorless Active Filters (Basic Circuit)
1. Pick up a convenient value for b; (b < 1)
2. Adjust Q
o
through R5
3. Adjust H
o(BP)
through R4
4. Adjust f
o
through R
SET
. This adjusts the unity gain frequency (f
u
) of the op amp.
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