AD633
D5
1N95236
D1
1N914
D2
1N914
R1
1k
E
C
1
2
3
4
D3
1N914
(10V) cos
D4
1N914
X1
X2
Y1
Y2
+V
S 8
W
7
Z
6
–V
S 5
0.1 F
4
1
t
+15V
0.1 F
+V
S 8
W
7
Z
6
–V
S 5
0.1 F
–15V
+15V
0.1 F
R2
16k
0.1 F
X1
X2
Y1
Y2
R3
330k
(10V) sin
f=
C3
0.1 F
t
C2
0.01 F
R4
16k
AD633JN
2
3
AD633JN
R5
16k
E
C
kHz
10V
–15V
Figure 13. Voltage Controlled Quadrature Oscillator
R2
1k
R3
10k
R4
10k
AGC THRESHOLD
ADJUSTMENT
+15V
0.1 F
1
2
+15V
0.1 F
C1
1 F
E
OUT
A1
R5
10k
R6
1k
+15V
0.1 F
X1
X2
Y1
Y2
+V
S 8
W
7
Z
6
–V
S 5
0.1 F
–15V
C2
0.02 F
1/2
AD712
AD633JN
E
3
4
1 C
C
COMMON 8
2 V
IN
0.1 F
+V
S
7
AD736
3 C
F
OUTPUT 6
4 –V
S
–15V
C4
33 F
C
AV
5
C3
0.2 F
R10
10k
A2
R9
10k
1N4148
0.1 F
1/2
AD712
+15V
R8
50k
OUTPUT
LEVEL
ADJUST
–15V
Figure 14. Connections for Use in Automatic Gain Control Circuit
–6–
REV. B
AD [ ANALOG DEVICES ]
