MF10 Datasheet, PDF (10/30 Pages) National Semiconductor (TI) – Universal Monolithic Dual Switched Capacitor Filter

1.0 Definition of Terms (Continued)
H_OLP: the gain (in V/V) of the lowpass output as f → 0 Hz
(Figure 2).
H_OHP: the gain (in V/V) of the highpass output as f → f_CLK/2
(Figure 3).
H_ON: the gain (in V/V) of the notch output as f → 0 Hz and as
f → f_CLK/2, when the notch filter has equal gain above and
below the center frequency (Figure 4). When the
low-frequency gain differs from the high-frequency gain, as
in modes 2 and 3a (Figure 11 and Figure 8), the two quan-
tities below are used in place of H_ON.
H_ON1: the gain (in V/V) of the notch output as f → 0 Hz.
H_ON2: the gain (in V/V) of the notch output as f → f_CLK/2.
01039905
(a)
01039906
(b)
01039956
FIGURE 1. 2nd-Order Bandpass Response
9
www.national.com