NJM2235 Data Sheet

NJM2235
3-INPUT VIDEO SWITCH
■ GENERAL DESCRIPTION
The NJM2235 is 3-input video switch for video signal. It has clamp
function and so is applied to fixed DC level of video signal. Its
operating supply voltage range is 5 to 12V and bandwidth is 10MHz.
Crosstalk is 70 dB (at 4.43MHz).
■ PACKAGE OUTLINE
■ FEATURES
● Operating Voltage
(+4.75V to +13V)
● 3 Input-1 Output
● Internal Clamp Function
● Wide Operating Supply voltage Range
4.75V to 13V
● Crosstalk 70dB (at 4.43MHz)
● Wide Frequency Range
10MHz
● Muting Function available
● Package Outline
DIP-8, DMP-8, SIP-8, SSOP8
● Bipolar Technology
■ APPLICATION
● VCR Video Camera AV-TV
■ PIN CONFIGURATION
NJM2235D
NJM2235M
NJM2235V
NJM2235L
Video Disc Player
NJM2235L
NJM2235D
NJM2235M
NJM2235V
■ BLOCK DIAGRAM
Ver.2011-08-17
■ INPUT CONTROL SIGNAL – OUTPUT SIGNAL
SW 1
SW 2
OUTPUT SIGNAL
L
L
VIN1
H
L
VIN2
L/H
H
VIN3
-1-
NJM2235
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER
(Ta=25°C)
SYMBOL
+
RATINGS
UNIT
V
mW
mW
mW
mW
Supply Voltage
Power Dissipation
V
PD
Operating Temperature Range
Topr
15
(DIP8) 500
(DMP8) 300
(SSOP8) 250
(SIP8) 800
-20 to +75
Storage Temperature Range
Tstg
- 40 to +125
°C
°C
(V+=5V, Ta=25°C)
■ ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
4.75
-
13.0
V
-
10.5
14.0
mA
Recommended Supply Voltage
V+
Operating Current
ICC
S1=S2=S3=S4=S5=1
Frequency Characteristics
Gf2
Vi=2.0Vpp Vo (10Hz)/Vo (100kHz)
-1.0
-
+1.0
dB
Voltage Gain
GV
Vi=2.5Vpp, 100kHz, Vo/Vi
-0.5
-
+0.5
dB
Differential Gain
DG
Vi=2Vpp Staircase signal
-
0
-
%
Differential Phase
DP
Vi=2Vpp Staircase signal
-
0
-
deg
Output Offset Voltage
Voff
(note 2)
-30
-
+30
mV
Input Clamp Voltage
VIC
(note 5)
-
2.0
-
V
Crosstalk (1)
CT1
Vi=2.0Vpp, 4.43MHz, Vo/Vi (note 3)
-
-70
-
dB
Crosstalk (2)
CT2
Vi=2.0Vpp, 4.43MHz, Vo/Vi (note 4)
-
-70
-
dB
VCH
All inside SW : ON
2.4
-
-
V
VCL
All inside SW : OFF
-
-
0.8
V
-
10
-
Ω
Switch Change Voltage
Output Impedance
RO
(note 1): If it is not shown about switch condition, it is tested on three condition below.
a) S1=2, S2=S3=S4=S5=1 b) S2=S4=2, S1=S3=S5=1, c) S1=S2=1, S3=S5=2, S4=1, or 2.
(note 2): S1=S2=S3=1, Output DC Voltage difference of three mode below.
a) S4=S5=1 b) S4=2, S5=1 c) S4=1 or 2, S5=2
(note 3): S5=1, Tested on all combination of S1 to S4 except two below.
a) S1=2, S4=1 b) S2=S4=2
(note 4): Tested on all combination of S1 to S4 except one.
a) S5=2, S3=2
(note 5): Input clamp voltage is about 2/5 of supply voltage.
-2-
Ver.2011-08-17
NJM2235
■ APPLICATION
Oscillation Prevention on light loading conditions
Recommended under circuit
■ TEST CIRCUIT
DC Voltage Each Terminal
Typ. on Test Circuit Ta=25°C
Terminal Name
DC Voltage
Ver.2011-08-17
VIN 1
2
5
+
V
SW 1
-
VIN 2
2
5
+
V
SW 2
-
VIN3
2
5
+
V
V+
-
2
5
VOUT
GND
+
-
V -0.7
-3-
NJM2235
■ EQUIVALENT CIRCUIT
PIN NO.
PIN
FUNCTION
PIN NO.
PIN
FUNCTION
1
VIN1
5
VIN 3
(Mute)
2
SW 1
6
V+
3
VIN2
7
VOUT
4
SW 2
8
GND
-4-
INSIDE EQUIVALENT CIRCUIT
INSIDE EQUIVALENT CIRCUIT
Ver.2011-08-17
NJM2235
■ 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.2011-08-17
-5-