DG540 TEMICs, DG540 Datasheet - Page 10

• Manufacturer Part Number: DG540
• Description: Wideband/Video T Switches
• Manufacturer: TEMICs

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