LMF100_15 Datasheet, PDF (22/40 Pages) Texas Instruments – LMF100 Dual High-Performance Switched Capacitor Filters

LMF100
SNOSBG9B – JULY 1999 – REVISED JUNE 2015
Device Functional Modes (continued)
H_OLP1 = 1 (noninverting)
R3
H_OHP2 = _R2
8.4.1.11 MODE 6c: Single-Pole, AP, LP Filter (See Figure 50)
f_c
=
f_CLK
100
or ^fCLK
50
H_OAP = 1(as f ® 0)
H_OAP = -1 (as f ® f_CLK / 2)
H_OLP = -2
R₁ = R₂ = R₃
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(71)
(72)
(73)
(74)
(75)
(76)
(77)
Figure 49. MODE 6b
8.4.1.12 Summing Integrator (See Figure 52)
t = int egrator time constant @ ¹⁶ or ⁸
f_CLK
f_CLK
Figure 50. MODE 6c
Figure 51. Equivalent Circuit
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Figure 52. MODE 7
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