DG642 Vishay Siliconix, DG642 Datasheet - Page 10

• Manufacturer Part Number: DG642
• Description: Low On-Resistance Wideband/Video Switches
• Manufacturer: Vishay Siliconix

DG641/642/643
Vishay Siliconix
www.vishay.com FaxBack 408-970-5600
4-10
CH SELECT
75
75
CH
1
CH
CH
CH
1
1
2
75
75
CH
2
CH
2
75
IN
TTL Channel Select
D
D
CH
FIGURE 10. Active Low Pass Filter with Selectable Inputs and Break Frequencies
1
4
1
3
1
75
/
2
DG643
FIGURE 8. 4 by 1 Video Multiplexing Using the DG641
FIGURE 9. 2-Channel Video Selector Using the DG642
CH
TTL Channel Select
4
S
S
1
2
S
S
1
4
–3 V
fc SELECT
V+
V–
DG642
+15 V
–3 V
D
D
1
2
V+
V–
R
DG641
1
+15 V
R
2
IN
S
S
2
3
2
250
+
LF401
–
+
–
1
A = 2
/
2
250
Si582
DG643
250
DIS
+
–
R
A = 2
3
250
Si582
fc
D
D
DIS
2
3
75
2 R
1
3
C
x
C
C
1
2
75
V
OUT
S-52433—Rev. E, 06-Sep-99
Document Number: 70058
R
75
L
V
OUT