DG540/541/542
Wideband/Video “T” Switches
Features
Benefits
Applications
D Wide Bandwidth: 500 MHz
D Flat Frequency Response
D RF and Video Switching
D Low Crosstalk: –85 dB
D High Color Fidelity
D RGB Switching
D High Off-Isolation: –80 dB @ 5 MHz D Low Insertion Loss
D Local and Wide Area Networks
D Video Routing
D “T” Switch Configuration
D TTL Logic Compatible
D Fast Switching—tON: 45 ns
D Low rDS(on): 30 W
D Improved System Performance
D Reduced Board Space
D Fast Data Acquisition
D ATE
D Reduced Power Consumption
D Improved Data Throughput
D Radar/FLR Systems
D Video Multiplexing
Description
The DG540/541/542 are high performance monolithic To achieve TTL compatibility, low channel capacitances
wideband/video switches designed for switching RF, video and fast switching times, the DG540 family is built on the
and digital signals. By utilizing a “T” switch configuration Siliconix proprietary D/CMOS process. Each switch
on each channel, these devices achieve exceptionally low conducts equally well in both directions when on.
crosstalk and high off-isolation. The crosstalk and
off-isolation of the DG540 are further improved by the
introduction of extra GND pins between signal pins.
Functional Block Diagrams and Pin Configurations
DG540
Dual-In-Line
DG540
PLCC
IN
D
IN
D
1
2
20
19
18
17
16
15
14
13
12
11
1
1
2
2
3
2
1 20 19
Truth Table
GND
GND
3
Logic
Switch
4
5
6
7
8
18
17
16
15
14
S
GND
1
S
S
2
4
1
V–
S
2
0
1
OFF
ON
V–
V+
5
GND
V+
GND
GND
6
S
4
GND
Logic “0” v 0.8 V
Logic “1” w 2 V
GND
S
3
S
S
3
7
4
GND
GND
8
9
10 11 12 13
Top View
D
D
9
4
3
IN
IN
10
4
3
Top View
Updates to this data sheet may be obtained via facsimile by calling Siliconix FaxBack, 1-408-970-5600. Please request FaxBack document #70055.
Siliconix
1
S-53694—Rev. E, 28-May-97