NJRC NJM41050

NJM41050
47µ
µF AC-Coupling Capacitor
3-Input 1-Output Video Driver with LPF
■ GENERAL DESCRIPTION
The NJM41050 is a 3-Input 1-Output general-purpose video switch.
It includes 6dB amplifier and 75ohm driver circuit. The NJRC original
Technology “ASC(Advanced SAG Correction)” realizes 47µF AC-Coupling
Capacitor which enables to downsize mounting space.
■ PACKAGE OUTLINE
NJM41050V
■ FEATURES
● Operating Voltage
4.5 to 9.5V
● Small output coupling capacitor 47µF
● Operating temperature range -40 to +85 °C*
● 3-Input 1-Output Video Switch
● 6dB Amplifier, 75Ω Driver Circuit
● Internal LPF
0dBtyp.at 6.75MHz
-40dBtyp.at 27MHz
● Internal MUTE Circuit
● Bipolar Technology
● Package
SSOP14
* NJM41050VT : Wide operating temperature range type (-40 to +105°C)
■ PIN CONFIGURATION
1
14
2
13
3
12
4
11
5
10
6
9
7
8
1. Vin1
2. SW1
3. Vin2
4. SW2
5. Vin3
6. Mute
7. NC
8. Vout
9. GND
10. Vcc
11. SREFV
12. Vsag
13. SSIGV
14. NC
■ BLOCK DIAGRAM
SW1
SW2
V+
VIN1
0.1µF
CLAMP
6.75MHz
LPF
VIN2
0.1µF
6dB
75ΩDRV
75Ω
VOUT 47µF
+
VSAG
CLAMP
VIN3
0.1µF
ASC
CLAMP
MUTE
Ver.3.1
75Ω
SREFV
68kΩ
1µF
SSIGV
68kΩ
0.1µF
GND
-1-
NJM41050
■ ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
SYMBOL
PARAMETERS
RATINGS
UNIT
Supply Voltage
V+
13.0
V
Power Dissipation
PD
500 (Note1)
mW
Topr
-40 to +85(Note2)
Operating Temperature Range
Tstg
-40 to +150
Storage Temperature Range
(Note 1) At on a board of EIA/JEDEC specification. (114.3 x 76.2 x 1.6mm 2 layers, FR-4)
(Note 2) It has high operating temperature range product.(-40 to +105°C)
°C
°C
■ RECOMMENDED OPEARATING CONDITION (Ta= 25 °C)
PARAMETER
SYMBOL
MIN.
TYP.
MAX.
UNIT
+4.5
+5.0
+9.5
V
MIN.
TYP.
MAX.
UNIT
-
15
1.5
22
2.4
mA
mA
Vin=1MHz, 1.0Vp-p sin-signal
5.5
6.0
6.5
dB
Vom
Vin=100kHz,sin-signal, THD=1%,
2.2
-
-
Vp-p
Gf6.75M
Vin=6.75MHz/1MHz,1.0Vpp sin-signal
-1.0
0
+1.0
dB
Vin=27MHz/1MHz,1.0Vpp sin-signal
-
-40
-24
dB
Operating Voltage
TEST CONDITION
Vopr
■ELECTRICAL CHARACTERISTICS (Vcc= 5.0V, RL= 150Ω, Ta= 25°C)
PARAMETER
SYMBOL
Supply Current
Supply Current at MUTE Mode
ICC
Isave
Voltage Gain
Gv
Maximum Output Level
Low Pass Filter Characteristic
Gf27 M
TEST CONDITION
No signal
MUTE mode
Channel Cross talk
CT
Vin=4.43MHz, 1.0Vp-p, Sine-wave
-
-80
dB
Differential Gain
DG
Vin=1.0Vp-p 10step video signal
-
0.5
-
%
Differential Phase
DP
Vin=1.0Vp-p 10step video signal
-
0.5
-
deg
SW Sink Current High Level
IthH
V=5V
-
-
300
µA
SW Sink Current Low Level
IthL
V=0.3V
-
-
5
µA
+
SW Voltage High Level
VthH
SW1,SW2,MUTE
2.0
-
V
V
SW Voltage Low Level
VthL
SW1,SW2,MUTE
0
-
1.0
V
■ SWITCH FUNCTION
PIN
MODE
NOTE
SW1
H
L
OPEN
PIN
MODE
NOTE
SW2
H
L
OPEN
IN3 output
IN1 or IN2 output
IN1 or IN2 output
PIN
MODE
NOTE
MUTE
H
L
OPEN
IN2 output
IN1 output
IN1 output
IN1 select
IN2 select
IN3 select
MUTE
SW1
L(OPEN)
H
-
SW2
L(OPEN)
L(OPEN)
H
-
MUTE
H
H
H
L(OPEN)
ACTIVE
MUTE
MUTE
-2-
NJM41050
■ TEST CIRCUIT
75Ω
75Ω
75Ω
1
VIN1
NC
14
2
SW1
SSIGV
13
3
VIN2
VSAG
12
0.1u
0.1u
4
SW2
SREFV
11
5
VIN3
VCC
10
MUTE
7
NC
0.1u
68k
1u
0.1u
0.1u
6
68k
GND
9
VOUT
8
+
47u
V+
+
47u
75Ω
75Ω
-3-
NJM41050
■ APPLICATION CIRCUIT 1
75Ω
75Ω
75Ω
1
VIN1
NC
14
2
SW1
SSIGV
13
3
VIN2
VSAG
12
0.1u
0.1u
4
SW2
SREFV
11
5
VIN3
VCC
10
MUTE
7
NC
0.1u
68k
1u
0.1u
0.1u
6
68k
GND
9
VOUT
8
+
47u
V+
+
47u
75Ω
-4-
NJM41050
■ APPLICATION CIRCUIT 2
75Ω
75Ω
75Ω
1
VIN1
NC
14
2
SW1
SSIGV
13
3
VIN2
VSAG
12
0.1u
0.1u
4
SW2
SREFV
11
5
VIN3
VCC
10
MUTE
7
NC
0.1u
68k
1u
0.1u
0.1u
6
68k
GND
9
VOUT
8
+
47u
V+
+
47u
75Ω
+
47u
75Ω
[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.
-5-