Datasheet

TLC04/MF4A-50, TLC14/MF4A-100
BUTTERWORTH FOURTH-ORDER LOW-PASS
SWITCHED-CAPACITOR FILTERS
SLAS021A – NOVEMBER 1986 – REVISED MARCH 1995
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
f
clock
1
RC In
V
CC
–V
IT–
V
CC
–V
IT
V
IT
V
IT–
For V
CC
= 10 V
f
clock
=
1
1.69 RC
–5 V
5 V
4
V
CC–
6
AGND
8
FILTER IN
FILTER
OUT
5
Butterworth
Fourth-Order
Low-Pass Filter
Nonoverlapping
Clock Generator
2
CLKR
1
CLKIN
3
LS
V
CC+
7
Level Shift
φ1 φ2
Filter
Input
R
C
Filter
Output
Figure 5. Self-Clocking Through Schmitt-Trigger Oscillator Dual-Supply Operation