NJM2223
VIDEO SWITCH WITH 8dB AMPLIFIER
■
GENERAL DESCRIPTION
The
NJM2223
is an integrated bipolar video switch with 8dB
amplifier which selects one video signal from three different
composit video signals.
The
NJM2223
has also function of superimposer and
synchronous signal clipping and is suit to picture in picture
configuration.
■
FEATURES
●
12V operation.
●
3 input video signal.
●
2output video signal.
●
Switch operates with CMOS level.
●
Super imposer function.
●
Internal 8dB Amp.
●
Package Outline
DMP16
●
Bipolar Technology
■
PIN CONFIGURATION
■
PACKAGE OUTLINE
NJM2223M
NJM2223M
■
BLOCK DIAGRAM
Ver.2004-02-17
-1-
NJM2223
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V
+
(T
a
=25°C)
RATINGS
15
(DMP16)350
-20 to +75
-40 to +125
UNIT
V
m
W
P
D
T
opr
T
stg
°C
°C
■
ELECTRICAL CHARACTERISTICS
PARAMETER
Operating Current
Voltage Gain (1)
Voltage Gain (2)
Frequency Charact. (1)
SYMBOL
I
CC
G
1
G
2
G
1-1
V
IN
=1MHz, 1V
P-P
V
IN
=1MHz, 1V
P-P
G
2
´:Voltage gain at V
IN
=1V
P-P
, 5MHz
5MHz G
2-2
=G
2
´-G
2
G
1
´:Voltage gain at V
IN
=1V
P-P
, 5MHz
5MHzG
1-1
=G
1
´-G
1
Stair Case, 1V
P-P
Stair Case, 1V
P-P
SW (1) input
SW (2) input
SW (3) input
SW (4) input
Open collector input
SW (2) – ON
V
IN
(1)=1V
P-P
, stair case
SW (3) –ON
V
IN
(1)=1V
P-P
f
in
=4MHz
TEST CONDITION
MIN.
-
-1
7
-1
TYP.
14
0
8
0
(T
a
=25°C, V
+
=12V)
MAX.
19
1
9
1
UNIT
mA
dB
dB
dB
Frequency Charact. (2)
Differential Gain
Differential Phase
Threshold Level (1)
Threshold Level (2)
Threshold Level (3)
Threshold Level (4)
Threshold Level (5)
Cipping Level
G
2-2
DG
DP
V
TH-1
V
TH-2
V
TH-3
V
TH-4
V
TH-5
V
CLIP
-1
-
-
1.4
1.4
1.4
1.4
0.5
32
0
-
-
2.2
2.2
2.2
2.2
1.0
40
1
3
3
3.0
3.0
3.0
3.0
2.0
48
dB
%
deg
V
V
V
V
V
IRE
Inside White Level
Cross-talk
V
IN
CT
92
-
100
-50
108
-
IRE
dB
-2-
Ver.2004-02-17
NJM2223
■
OUTPUT SELECT CODE
●
Video output (1)
SW (1)
0
1
V
OUT
(1) Output Signal
V
IN
(1)
V
IN
(2)
SW (3)
0
1
V
OUT
(2) Output Signal
Video Signal
DC Level
●
Super Imposer
1.Switching of SW (3), it imposes DC level in video signal
regardlsee to SW (1), SW (2) Condition.
●
Video output (2)
SW (1)
0
0
1
1
SW (2)
0
1
0
1
SW (3)
0
0
0
0
V
OUT
(2) Output Signal
V
IN
(1)
V
IN
(3)
V
IN
(2)
V
IN
(2)
2. Switching of SW (4), it selects DC level at internal white level
(100 IRE) or external setting level.
SW (4)
0
1
V
OUT
(2) Output Signal
Internal White Level
External Set Level
●
Open Collector Drive Switch
This switch has function to make SW (2), SW (3) no working
And V
OUT
(2) output signal to the same output signal of V
OUT
(1).
It operates in CMOS level.
Ver.2004-02-17
-3-
NJM2223
■
TERMINAL FUNCTION
■
TEST CIRCUIT
-4-
Ver.2004-02-17
NJM2223
■
TYPICAL CHARACTERISTICS
Operating Current
Clipping/Internal Level
Voltage Gain (1)ِ(2)
Gain Change Ratio (5MHz/1MHz)
Differential Gain/Differential Phase
Threshold Level
Ver.2004-02-17
-5-
嵌入式系统
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