DG641 Datasheet, PDF (10/10 Pages) Vishay Siliconix – Low On-Resistance Wideband/Video Switches

DG641/642/643
Vishay Siliconix
APPLICATIONS
CH₁
CH₂
75 W
75 W
CH₃
CH₄
75 W
75 W
+15 V
V+
DG641
V–
Si582
+
A=2
–
DIS
250 W
250 W
75 W
CH₁
CH₂
75 W
75 W
TTL Channel Select
–3 V
FIGURE 8. 4 by 1 Video Multiplexing Using the DG641
+15 V
V+
S₁
D₁
S₂
D₂
DG642
V–
Si582
+
A=2
–
DIS
250 W
250 W
TTL Channel Select
–3 V
FIGURE 9. 2-Channel Video Selector Using the DG642
75 W
V_OUT
R_L
75 W
CH₁
CH₂
CH SELECT
IN₂
fc SELECT
S₂
D₂
C₁
D₁
S₁
D₄
S₄
IN₁
1_{/2 DG643}
S₃
D₃
C₂
1_{/2 DG643}
R₁
R₂
–
LF401
+
R₃
1
fc + _2pR3Cx
V_OUT
FIGURE 10. Active Low Pass Filter with Selectable Inputs and Break Frequencies
www.vishay.com S FaxBack 408-970-5600
4-10
Document Number: 70058
S-52433—Rev. E, 06-Sep-99