Vishay Siliconix
DG540, DG541, DG542
Document Number: 70055
S11-1429–Rev. H, 18-Jul-11
www.vishay.com
1
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
Wideband/Video “T” Switches
DESCRIPTION
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.
FEATURES
• Halogen-free according to IEC 61249-2-21
Definition
• 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 - t
ON
: 45 ns
•Low R
DS(on)
: 30
• Compliant to RoHS Directive 2002/95/EC
BENEFITS
• Flat Frequency Response
• High Color Fidelity
• Low Insertion Loss
• Improved System Performance
• Reduced Board Space
• Reduced Power Consumption
• Improved Data Throughput
APPLICATIONS
• 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
Logic “0” 0.8 V
Logic “1” 2 V
TRUTH TABLE
Logic Switch
0 OFF
1ON
PLCC
14
15
16
17
18
8
7
6
5
4
1231920
111091312
Top View
S
1
GND
V- S
2
GND V+
S
4
GND
GND S
3
GND
GND
4
D
3
D
3
IN
D
1
IN
1
4
IN
D
2
IN
2
V-
GND
D
4
S
3
Dual-In-Line
D
3
GND
GND GND
S
4
GND
S
2
V+
GND
IN
1
IN
3
IN
2
S
1
IN
4
D
1
D
2
1
2
3
4
5
6
7
8
20
19
18
17
16
15
14
13
Top View
912
10 11
DG540
DG540
