Philips Semiconductors Linear Products
Product specification
Tone decoder/phase-locked loop
NE/SE567
TYPICAL APPLICATIONS
+
R
3
567
897Hz
DIGIT
1
R
2
C
2
3
3
R
+
+
1
C
C
2
1
567
770Hz
4
5
6
7
8
567
852Hz
+
+
+
+
9
0
567
941Hz
*
567
1209Hz
NOTES:
Component values (Typical)
R
R
= 26.8 to 15kΩ
= 24.7kΩ
1
2
567
1336Hz
R
C
= 20kΩ
3
1
= 0.10mF
C
C
C
= 1.0mF 5V
= 2.2mF 6V
= 250µF 6V
2
3
4
567
1477Hz
Touch-Tone Decoder
413
April 15, 1992