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NJM2578 데이터시트(Datasheet) 5 Page - New Japan Radio

부품명 NJM2578
상세내용  LOW VOLTAGE VIDEO AMPLIFIER WITH LPF
PDF  9 Pages
Scroll/Zoom Zoom In 100% Zoom Out
제조사  NJRC [New Japan Radio]
홈페이지  http://www.njr.co.jp/index_e.htm
Logo 

   
 1 page
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NJM2578
-1-
LOW VOLTAGE VIDEO AMPLIFIER WITH LPF
sGENERAL DESCRIPTION
sPACKAGE OUTLINE
The NJM2578 is a Low Voltage Video Amplifier contained LPF
circuit. Internal 75
Ω driver is easy to connect TV monitor directly.
The NJM2578 features low power and small package, and is
suitable for low power design on downsizing of DSC and DVC.
sFEATURES
q
Operating Voltage
2.8 to 5.5V
q
Input coupling capacitor is not necessary
q
12dB amplifier
q
Internal LPF
-23dB at 23.5MHz typ.
q
Internal 75
Ω Driver Circuit (2-system drive)
q
Power Save Circuit
q
Bipolar Technology
q
Package Outline
SON6
sBLOCK DIAGRAM
NJM2578KJ1
75Ω
Vin
V+
Vout
Vsag
Pow er Save
GND
LPF
1
2
3
4
5
6
12dB
Driver
 2 page
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NJM2578
- 2 -
sABSOLUTE MAXIMUM RATINGS
(Ta=25
°C)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
V
+
7.0
V
Power Dissipation
PD
150
mW
Operating Temperature Range
Topr
-40 to +85
°C
Storage Temperature Range
Tstg
-40 to +125
°C
sELECTRICAL CHARACTERISTICS
(V
+=3.0V,R
L=150Ω,Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX. UNIT
Operating Voltage
Vopr
2.8
3.0
5.5
V
Operating Current
ICC
No Signal
-
9.0
12.0
mA
Operating Current at Power Save
Isave
Power Save Mode
-
10
25
uA
Maximum Output Voltage Swing
Vomv
f=100kHz,THD=1%
2.2
2.6
-
Vp-p
Voltage Gain
Gv
Vin=100kHz, 0.5Vp-p,
Input Sine Signal
12.0
12.4
12.8
dB
Gfy4.5M Vin=4.5MHz/100kHz, 0.5Vp-p
-0.95
-0.45
0.05
Gfy8M
Vin=8MHz/100kHz, 0.5Vp-p
-
-3.0
-
Low Pass Filter Characteristic
Gfy19M
Vin=19MHz/100kHz, 0.5Vp-p
-
-23
-17
dB
Differential Gain
DG
Vin=0.5Vp-p, 10step Video Signal
-
0.5
-
%
Differential Phase
DP
Vin=0.5Vp-p, 10step Video Signal
-
0.5
-
deg
S/N Ratio
SNv
Vin=0.5Vp-p, RL=75Ω
100% White Video Signal,
100KHz to 6MHz
-
+60
-
dB
2nd. Distortion
Hv
Vin=0.5Vp-p, 3.58MHz,Sine Signal,
RL=75Ω
-
-60
-
dB
SW Change Voltage High Level
VthPH
Active
1.8
-
V
+
SW Change Voltage Low Level
VthPL
Non-active
0
-
0.3
V
sCONTROL TERMINAL
PARAMETER
STATUS
NOTE
H
Power Save: OFF
L
Power Save: ON
Power Save
OPEN
Power Save: ON
 3 page
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NJM2578
- 3 -
sTEST CIRCUIT
Please input the signal, which made the bottom end of a waveform the GND level.
Please do not set an input terminal to OPEN at non-signal.
Vps
+
+
100u
22u
75Ω
75Ω
out1
out2
in
330Ω
V+
10u
0.1u
+
13
2
64
5
PS
Vout
Vsag
Vin
GND
V
+
NJM2578
GND
GND
 4 page
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NJM2578
- 4 -
s
s
s
s EQUIVARENT CIRCUIT
PIN No.
SYNBOL
INSIDE EQUIVARENT CIRCUIT
1
Power Save
2
Vout
3
Vsag
4
Vin
5
GND
6
V+
32k
48k
GND
PS
V
+
750
GND
Vout
16.2k
V
+
750
GND
Vsag
16.2k
V
+
GND
Vin
36k
25k
 5 page
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NJM2578
- 5 -
s
s
s
s TYPICAL CHRACTERISTICS
Supply Current vs. Supply Voltage
Supply Current at Power Save Mode vs. Supply Voltage
(No Signal)
(No Signal)
Maximum Output Voltage Swing vs. Supply Voltage
Voltage Gain vs. Supply Voltage
(f=100kHz,THD=1%)
(vin=100kHz,0.5Vpp sine-signal)
LPF Characteristic vs. Supply Voltage
LPF Characteristic vs. Supply Voltage
(vin=4.5MHz/100kHz,0.5Vpp)
(vin=8MHz/100kHz,0.5Vpp)
11.0
11.5
12.0
12.5
13.0
13.5
14.0
23
4
5
6
7
8
V
+[V]
1.0
2.0
3.0
4.0
5.0
6.0
23
4
5
6
7
8
V
+[V]
-1.5
-1.0
-0.5
0.0
0.5
2
345
67
8
V
+[V]
-10
-8
-6
-4
-2
0
2
234
5
6
7
8
V
+[V]
6
7
8
9
10
11
12
13
14
2345
678
V
+[V]
0
10
20
30
40
50
60
2345
678
V
+[V]
 6 page
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NJM2578
- 6 -
s
s
s
s TYPICAL CHRACTERISTICS
LPF Characteristic vs. Supply Voltage
Differential Gain vs. Supply Voltage
(vin=19MHz/100kHz,0.5Vpp)
(vin=0.5Vpp,10Step signal)
Differential Phase vs. Supply Voltage
S/N Ratio vs.Supply Voltage
(vin=0.5Vpp,10Step-signal)
(vin=0.5Vpp,RL=75ohm,100% White-video-sgnal,100kHz-6MHz)
2
nd.Distortion vs. Supply Voltage
SW Change Voltage vs.Supply Voltage
(vin=0.5Vpp,3.58MHz, Sine-Signal RL=75ohm)
-45
-40
-35
-30
-25
-20
-15
-10
2
345
67
8
V
+[V]
0.0
1.0
2.0
3.0
4.0
5.0
23
4
5
6
7
8
V
+[V]
0.0
1.0
2.0
3.0
4.0
5.0
2
345
67
8
V
+[V]
40
50
60
70
80
90
100
23
4
5
6
7
8
V
+[V]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
234
5
678
V
+[V]
VthH
VthL
-100
-80
-60
-40
-20
0
2
345
67
8
V
+[V]
 7 page
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NJM2578
-7-
s
s
s
s TYPICAL CHRACTERISTICS
Supply Current vs. Temperature
Supply Current at Power Save Mode vs. Temperature
(V
+=3V No Signal)
(V
+=3V No Signal)
Maximum Output Voltage Swing vs. Temperature
Voltage Gain vs. Temperature
(V
+=3V, f=100kHz THD=1%)
(vin=100kHz 0.5Vpp sine signal)
LPF Characteristics vs. Temperature
LPF Characteristics vs. Temperature
(V
+=3V, vin=4.5MHz/100kHz 0.5Vpp)
(V
+=3V, vin=8MHz/100kHz 0.5Vpp)
11.0
11.5
12.0
12.5
13.0
13.5
14.0
-50
0
50
100
T[C
o]
1.0
2.0
3.0
4.0
5.0
6.0
-50
0
50
100
T[C
o]
6
7
8
9
10
11
12
13
14
-50
0
50
100
T[C
o]
0
10
20
30
40
50
60
-50
0
50
100
T[C
o]
-1.5
-1.0
-0.5
0.0
0.5
-50
0
50
100
T[C
o]
-10
-8
-6
-4
-2
0
2
-50
0
50
100
T[C
o]
 8 page
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NJM2578
- 8 -
s
s
s
s TYPICAL CHRACTERISTICS
LPF Characteristics vs. Temperature
Differential Gain vs. Temperature
(V
+=3V, vin=19MHz/100kHz 0.5Vpp)
(V
+=3V, vin=0.5Vpp 10Step-signal)
Differential Phase vs. Temperature
S/N Ratio vs. Temperature
(V
+=3V, vin=0.5Vpp 10Step-signal)
(V
+=3V, RL=75ohm,vin=0.5Vpp White Video Signal 100kHz to 6MHz)
2
nd
Distortion vs. Temperature
SW Change Voltage vs. Temperature
(V
+=3V, RL=75ohm, vin=0.5Vpp 3.58MHz sine-signal)
-45
-40
-35
-30
-25
-20
-15
-10
-50
0
50
100
T[C
o]
0.0
1.0
2.0
3.0
4.0
5.0
-50
0
50
100
T[C
o]
0.0
1.0
2.0
3.0
4.0
5.0
-50
0
50
100
T[C
o]
40
50
60
70
80
90
100
-50
0
50
100
T[C
o]
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-50
0
50
100
T[C
o]
VthH
VthL
-100
-80
-60
-40
-20
0
-50
0
50
100
T[C
o]
 9 page
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NJM2578
- 9 -
[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.




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