DG894
Vishay Siliconix
Component Video Selector
FEATURES
D
D
D
D
D
D
D
Wide Bandwidth: 200 MHz
Very Low Crosstalk: 鈥?0 dB at 5 MHz
CMOS Compatible
I
2
C Bus Compatible
Fast Switching鈥攖
ON
: <200 ns
Low r
DS(on)
: 44
W
Single Supply Capability
BENEFITS
D
D
D
D
D
Low Insertion Loss
Improved System Performance
Reduced Power Consumption
Easily Interfaced
Future System Expansion
via I
2
C Bus
APPLICATIONS
D
Component Video Switching:
RGB + SYNC, S-VHS, Y-C, etc.
D
Audio/Video Routing
D
Digital TV
D
ATE
D
I
2
C Bus Audio/Video Systems
D
SCART Video Switching
DESCRIPTION
The DG894 is a monolithic video selector designed for
switching a variety of component video signals. The low
on-resistance and low capacitance of the DG894 make it ideal
for video/audio signal routing. Switch control can be through
direct CMOS addressing or through the two-wire I
2
C bus.
The DG894 is built on the Vishay Siliconix proprietary
D/CMOS process that combines n-channel DMOS switching
FETs with low-power CMOS control logic and drivers.
Low-capacitance DMOS FETs are used to achieve high levels
of off isolation at low cost.
FUNCTIONAL BLOCK DIAGRAM AND PIN CONFIGURATION
Dual-In-Line and SOIC
V
DD
Y
1
C
1
GND
Y
2
C
2
V
SS
R
OUT
G
OUT
B
OUT
FB
OUT
FB
2
R
2
G
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Control Logic/Drivers
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C
0
Y
0
V
DD
C
OUT
Y
OUT
SMO
SCL
SDA
SEL
R
1
G
1
B
1
FB
1
B
2
TRUTH TABLE
SMO
0
0
1
1
1
1
1
1
1
1
SEL
0
1
0
0
0
0
1
1
1
1
SDA
SCL
Function/Switch On
I
2
C Bus Operation, Address A
0
= 鈥?鈥?/div>
I
2
C Bus Operation, Address A
0
= 鈥?鈥?/div>
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
All switches off
Y
0
, C
0
Y
1
, C
1
Y
2
, C
2
R
1
, G
1
, B
1
, F
1
R
2
, G
2
, B
2
, F
2
R
1
, G
1
, B
1
, F
1
, Y
1
, C
1
R
2
, G
2
, B
2
, F
2
, Y
2
, C
2
ORDERING INFORMATION
Temp Range
鈥?0 to 85_C
鈥?0 to 85_C
Package
28-Pin Plastic DIP
28-Pin Wide Body SOIC
Part Number
DG894DJ
DG894DW
Top View
Document Number: 70072
S-52433鈥擱ev. D, 06-Sep-99
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