Telecast
Theory of Operation
11
Figure 13. Audio Input Buffer Circuit
The audio output circuit is shown in Figure 14. The output impedance is 30
W
, balanced.
Figure 14. Audio Output Buffer Circuit
2
1
2
Ferrite Bead
+8
3
1
8
4
MC33078
10pF
.1
.1
10pF
4.99k
-8
5
2.49k
6
7
MC33078
680
3
1
2
1
0
2
Ferrite Bead
2.49k
Audio In
1
2
3
6
5
4
Mode
4.99k
4.64k
100
1
2
Ferrite Bead
15
W
2.0k
10
9
8
MC33179
2.0k
3
2
1
0
Audio Out
2.0k
4.99k
.015 Film
2.0k
5
6
7
MC33179
Ferrite Bead
1
2
15
W
m
F Film
