NJM2264
3 - INPUT VIDEO SUPER IMPOSER WITH 75Ω DRIVER
■
GENERAL DESCRIPTION
NJM2264
is 3-input, 1-output video switch with 75Ω driver circuit.
One input is provided with sink chip clamp function, which adjusts the
DC level of video signal. The other two inputs of transistor open base
can make control of luminance signal. This video switch can be
connected to TV monitor directly, as it has 75Ω driver circuit internally.
NJM2264
is a high performance video switch which is operated with
5V supply voltage.
■
PACKAGE OUTLINE
NJM2264D
NJM2264M
■
FEATURES
●
Wide Operating Voltage (4.75V to 13V)
●
3 Input 1-Output
●
Internal 75Ω Driver Circuit
●
Internal Sink Chip Clamp Function (V
IN
1)
●
Internal Luminance Signal Control Function (V
IN
2, V
IN
3)
●
Crosstalk 70dB(at 4.43MHz)
●
Wide Operating Frequency Range 10MHz (2V
P-P
input)
●
Package Outline DIP8, DMP8, SIP8
●
Bipolar Technology
NJM2264L
■
APPLICATIONS
●
VCR, Video Camera, AV-TV, Video Disc Player.
■
BLOCK DIAGRAM
Ver.2004-02-17
-1-
NJM2264
■
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Supply Voltage
Power Dissipation
SYMBOL
V
+
(T
a
=25°C)
RATINGS
15
(DIP8)
(DMP8)
(SIP8)
500
300
800
UNIT
V
mW
mW
mW
°C
°C
P
D
Operating Temperature Range
Storage Temperature Range
T
opr
T
stg
-20 to +75
-40 to +125
■
ELECTRICAL CHARACTERISTICS
PARAMETERS
Recommended Supply Voltage
Operating Current
Voltage Gain
Frequency Characteristics
Differential Gain
Differential Phase
Crosstalk
Switch Change Voltage
SYMBOLS
V
+
(V
+
=5V, T
a
=25°C±2°C)
TEST CONDITIONS
S1 = S2 = S3 = S4 = S5 = 2
V
IN
= 2.0V
P-P
, 100kHz, V
O
/ V
I
V
IN
= 2.0V
P-P
, V
O
(10MHz) / V
O
(100kHz)
V
IN
= 2.0V
P-P
, Staircase, R
L
= 150Ω
V
IN
= 2.0V
P-P
, Staircase, R
L
= 150Ω
V
I
= 2.0V
P-P
, 4.43MHz
V
O
/ V
I
V
IN
2 V
IN
3 Biased (Note 2)
Switch High Level Voltage
Switch Low Level Voltage
MIN.
4.75
-
-0.8
-1.0
-
-
-
-
-
2.4
-
TYP.
-
16.5
-0.3
0
0.3
0.3
-
-70
-
-
-
MAX.
13.0
23.0
+0.2
+1.0
-
-
-
-
-
-
0.8
UNIT
V
mA
dB
dB
%
deg
-
dB
-
V
V
I
CC
G
V
G
f
DG
DP
CT
V
CH
V
CL
Note 1) Unless otherwise specified, tested with the following conditions.
a) S1 = 1, S2 = S3 = S4 = S5 = 2 b) S2 = S4 = 1, S1 = S3 = S5 = 2 c) S3 = S5 = 1, S1 = S2 = 1, S4 = 1 and 2
Note 2) Tested with the following conditions.
a) S1 = S4 = 1, S2 = S3 = 2, S5 = 1 and 2 b) S2 =1, S1 = S3 = S4 = 2, S5 = 1 and 2 c) S3 = 1, S1 = S2 = S5 = 2, S4 = 1 and 2
+
+
Note 3) The Clamp Input Voltage of Vin is approximately (2.0×V ) / 5(In case of V = 5V, about 2.0V).
■
SWITCH CONTROL SIGNAL - OUTPUT SIGNAL
SW1
L
H
L/H
SW2
L
L
H
OUTPUT SIGNAL
V
IN
1
V
IN
2
V
IN
3
-2-
Ver.2004-02-17
NJM2264
■
TEST CIRCUIT
■
APPLICATION
Oscillation Prevention on light loading conditions
Recommended under circuit.
Ver.2004-02-17
-3-
NJM2264
■
EQUIVALENT CIRCUIT
PIN NO.
PIN
FUNCTION
INSIDE EQUIVALENT CIRCUIT
PIN NO.
PIN
FUNCTION
INSIDE EQUIVALENT CIRCUIT
1
V
IN
1
5
V
IN
3
2
SW1
6
V
+
3
V
IN
2
7
V
OUT
4
SW2
8
GND
-4-
Ver.2004-02-17
NJM2264
■
APPLICATION
This IC requires 1MΩ resistance between INPUT and GND pin for clamp type input since the minute current causes an
unstable pin voltage.
This IC requires 0.1uF capacitor between INPUT and GND, 1MΩ resistance between INPUT and GND for clamp type
input at mute mode.
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
Ver.2004-02-17
-5-
嵌入式系统
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