NJM2581
DUAL SUPPLY WIDE BAND 3ch VIDEO AMPLIFIER
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GENERAL DESCRIPTION
The
NJM2581
is a dual supply voltage wide band 3ch
video amplifier. It is suitable for Y, Pb, and Pr signal because
frequency range is 50MHz.
The
NJM2581
is suitable for Set Top Box, AV amplifier,
and other high quality AV systems.
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PACKAGE OUTLINE
NJM2581D
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FEATURES
q
Operating Voltage
±4.5 to ±5.5V
q
Wide frequency range
50MHz at 0dB typ.
q
Internal 6dB Amplifier
q
Internal 75ΩDriver Circuit (2-system drive)
q
Power Save Circuit
q
Bipolar Technology
q
Package Outline
DIP14, DMP14
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BLOCK DIAGRAM
NJM2581M
VIN1
1
6dB
AMP
75
Ω
Driver
14
V
+
1
BIAS
VEE1
2
13
VOUT1
VIN2
3
6dB
AMP
75
Ω
Driver
12
V
+
2
BIAS
VEE2
4
11
VOUT2
VIN3
5
6dB
AMP
75
Ω
Driver
10
V
+
3
BIAS
VEE3
6
9
VOUT3
PowerSave
7
REF
8
GND
Ver.5
-1-
NJM2581
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ABSOLUTE MAXIMUM RATINGS
PARAMETERS
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
+/-
V
P
D
Topr
Tstg
RATINGS
±6.0
(DIP) 500
(DMP) 350
-40 to +85
-40 to +125
(Ta=25°C)
UNIT
V
mW
°C
°C
( V =±5.0V, R
L
=150Ω, Ta=25°C)
TEST CONDITION
No signal
No signal, Power Save
Vin=1kHz,Sin signal, THD=1%,
Vin=1MHz, 1.0Vp-p Sin signal
Vin=50MHz / 1MHz, 1.0Vp-p, Sin signal
Vin=4.43MHz, 1.0Vp-p, Sin signal
Vin=50MHz, 1.0Vp-p, Sin signal
Vin=1.0Vp-p 10step Video signal *1
Vin=1.0Vp-p 10step Video signal *1
Vin=1.0Vp-p,
100% White Video signal *1
IC Operating
IC Waiting
MIN.
-
-
7.4
6.0
-
-
-
-
-
-
-
2.0
0
TYP.
23.0
-
8.0
6.4
50
0
-60
-40
0.3
0.3
70
-
-
MAX.
33.0
1.2
-
6.8
-
-
-50
-
-
-
-
V
+
+
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ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Operating Current
I
CC
Operating Current
Isave
(Power Save)
Maximum Output Voltage
Vom
Voltage Gain
Gv
Band Width
f
Frequency Characteristic
Gf
Cross talk 1
CTB1
Cross talk 2
CTB2
Differential Gain
DG
Differential Phase
DP
S/N
Power Save Switch Change
Voltage H Level
Power Save Switch Change
Voltage L Level
*1: Refer to TEST CIRCUIT 2.
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MODE SWITCH FUNCTION
PIN
Power Save
MODE
H
L
OPEN
SNv
VthPH
VthPL
UNIT
mA
mA
Vp-p
dB
MHz
dB
dB
dB
%
deg
dB
V
V
0.6
NOTES
Power Save : OFF
Power Save : ON
Power Save : ON
Ver.5
-2-