Datasheet

10
LTC1062
1062fd
Simple Cascading Technique
FB
AGND
V
–
DIVIDER
RATIO
B
OUT
OUT
V
+
C
OSC
1
2
3
4
8
7
6
5
LTC1062
0.1µF
DC ACCURATE
OUTPUT
7
4
8
1
6
0.1µF
1062 TA11
0.1µF
V
IN
412k
V
+
= 5V
f
CLK
= 1kHz
10Hz, 10TH ORDER DC ACCURATE LOWPASS FILTER
60dB/OCTAVE ROLLOFF
0.5dB PASSBAND ERROR, 0dB DC GAIN
MAXIMUM ATTENUATION 110dB (f
CLK
= 10kHz)
100dB (f
CLK
= 1kHz)
95dB (f
CLK
= 1MHz)
2
3
–5V
5V
–5V
FB
AGND
V
–
DIVIDER
RATIO
B
OUT
OUT
V
+
C
OSC
1
2
3
4
8
7
6
5
LTC1062
1µF
–5V
25.8k
–
+
LTC1052
100Hz, 50Hz, 25Hz 5th Order DC Accurate LP Filter
FB
AGND
V
–
DIVIDER
RATIO
B
OUT
OUT
V
+
C
OSC
1
2
3
4
8
7
6
5
LTC1062
1062 TA12
0.1µF
1
2
3
4
0.1µF
1/2 CD4016
V
IN
25.8k
–5V 5V
10kHz
CLK IN
B
OUT
0.2µF
V
OUT
13 5
TO PIN 13 OF CD4016
TO PIN 5 OF CD4016
BY CONNECTING PIN 4 OF THE LTC1062
HIGH/GROUND/LOW THE FILTER CUTOFF
FREQUENCY IS 100Hz/50Hz/25Hz
100k
–5V
–5V
5V
5V
100k
CONTROL
(HIGH, GROUND, LOW)
100k
100k
TYPICAL APPLICATIO S
U