DG540 Datasheet, PDF (10/10 Pages) TEMIC Semiconductors – Wideband/Video T Switches

DG540/541/542
Applications (Cont’d)
Figure 8 shows a 4-channel video multiplexer using a DG540.
+15 V
V+
CH₁
75 W
CH₂
75 W
CH₃
CH₄
75 W
75 W
DG540
V–
–3 V
Si582
+
A=2
–
DIS
250 W
250 W
75 W
TTL Channel Select
Figure 8. 4 by 1 Video Multiplexing Using the DG540
Figure 9 shows an RGB selector switch using two DG542s.
+15 V
R₁
75 W
G₁
75 W
R₂
75 W
G₂
75 W
V+
DG542
V–
–3 V
+15 V
Si584
B₁
Sync 1
75 W
B₂
75 W
75 W
Sync 2
75 W
RGB Source Select
V+
DG542
V–
–3 V
Red Out
Green Out
Blue Out
Sync Out
Figure 9. RGB Selector Using Two DG542s
10
Siliconix
S-53694—Rev. E, 28-May-97