DG540 Datasheet, PDF (1/10 Pages) TEMIC Semiconductors – Wideband/Video T Switches

Wideband/Video “T” Switches
DG540/541/542
Features
Benefits
D Wide Bandwidth: 500 MHz
D Low Crosstalk: –85 dB
D High Off-Isolation: –80 dB @ 5 MHz
D “T” Switch Configuration
D TTL Logic Compatible
D Fast Switching—t_ON: 45 ns
D Low r_DS(on): 30 W
D Flat Frequency Response
D High Color Fidelity
D Low Insertion Loss
D Improved System Performance
D Reduced Board Space
D Reduced Power Consumption
D Improved Data Throughput
Applications
D RF and Video Switching
D RGB Switching
D Local and Wide Area Networks
D Video Routing
D Fast Data Acquisition
D ATE
D Radar/FLR Systems
D Video Multiplexing
Description
The DG540/541/542 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
Siliconix proprietary D/CMOS process. Each switch
conducts equally well in both directions when on.
Functional Block Diagrams and Pin Configurations
DG540
Dual-In-Line
IN₁ 1
D₁ 2
GND 3
S₁ 4
V– 5
GND 6
S₄ 7
GND 8
D₄ 9
IN₄ 10
Top View
20 IN₂
19 D₂
18 GND
17 S₂
16 V+
15 GND
14 S₃
13 GND
12 D₃
11 IN₃
S₁ ⁴
V– ⁵
GND ⁶
S₄ 7
GND ⁸
DG540
PLCC
3 2 1 20 19
18 _GND
17 _S2
16 _V+
15 GND
14 _S3
9 10 11 12 13
Top View
Truth Table
Logic
Switch
0
OFF
1
ON
Logic “0” v 0.8 V
Logic “1” w 2 V
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