NE5517, NE5517A, AU5517
1
+V
CC
10kW
+V
CC
3
2
NE5517/A
−
6
800pF
+
14
11
5
7
20kW
15
NE5517/A
−
13
5.1kW
1kW
20kW
5.1kW
800pF
+
12
10
LOW
PASS
V
OUT
9
INT
+V
CC
16
15kW
V
C
1kW
−V
CC
20kW
−V
CC
BANDPASS OUT
−V
CC
INT
Figure 31. State Variable Filter
30kW
V
C
+V
CC
4
−
11
1
NE5517/A
3
+
6
C
0.1mF
20kW
8
5
7
NE5517/A
+
14
16
INT +V
CC
13
−
+V
CC
INT
+V
CC
10
47kW
12
9
10kW
V
OUT2
−V
CC
−V
CC
V
OUT1
−V
CC
INT
GAIN
CONTROL
Figure 32. Triangle−Square Wave Generator (VCO)
I
C
470kW
V
C
+V
CC
4
+
11
1
I
B
+V
CC
INT +V
CC
13
−
5
7
NE5517/A
C
0.1mF
20kW
8
+
14
R
2
30kW
−V
CC
12
10
16
47kW
INT
+V
CC
30kW
2
3
NE5517/A
−
6
R
1
30kW
−V
CC
NOTE:
(V
V
PK
+
C
R1
)
R2
*
0.8) R 1
T
H
+
2V PK x C
IB
T
L
+
2V PKxC
I
C
I
f
−V
CC
V
OUT1
C
I
t t
I
B
OSC 2V xC C
PK
V
OUT2
INT
Figure 33. Sawtooth Pulse VCO
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