DG540, DG541, DG542
Vishay Siliconix
Wideband/Video “T” Switches
FEATURES
DESCRIPTION
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Halogen-free according to IEC 61249-2-21
Definition
The DG540, DG541, DG542 are high performance
monolithic wideband/video switches designed for switching
RF, video and digital signals. By utilizing a "T" switch
configuration on each channel, these devices achieve
exceptionally low 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.
To achieve TTL compatibility, low channel capacitances and
fast switching times, the DG540 family is built on the Vishay
Siliconix proprietary D/CMOS process. Each switch
conducts equally well in both directions when on.
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Wide Bandwidth: 500 MHZ
Low Crosstalk: - 85 dB
High Off-Isolation: - 80 dB at 5 MHz
"T" Switch Configuration
TTL and CMOS Logic Compatible
Fast Switching - tON: 45 ns
Low RDS(on): 30
Compliant to RoHS Directive 2002/95/EC
BENEFITS
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Flat Frequency Response
High Color Fidelity
Low Insertion Loss
Improved System Performance
Reduced Board Space
Reduced Power Consumption
Improved Data Throughput
APPLICATIONS
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RF and Video Switching
RGB Switching
Local and Wide Area Networks
Video Routing
Fast Data Acquisition
ATE
Radar/FLR Systems
Video Multiplexing
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
DG540
Dual-In-Line
DG540
PLCC
IN
D
IN
D
1
2
20
19
18
17
16
15
14
13
1 2
11
1
2
1
2
3
2
1
20 19
GND
GND
3
4
5
6
7
8
18
17
16
S
GND
1
S
1
S
2
4
V-
S
2
V-
V+
5
GND
V+
GND
GND
S
4
15 GND
14
6
GND
S
3
S
4
S
3
7
GND
GND
8
9
10 11 12 13
Top View
D
D
3
9
4
IN
4
IN
3
10
Top View
TRUTH TABLE
Logic
0
1
Switch
OFF
ON
Logic “0” 0.8 V
Logic “1” 2 V
Document Number: 70055
S11-1429–Rev. H, 18-Jul-11
www.vishay.com
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This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000