NJM2573
PRELIMINARY
LOW VOLTAGE 3ch VIDEO AMPLIFIER WITH LPF
s
GENERAL DESCRIPTION
The NJM2573
is a Low Voltage 3ch Video Amplifier with LPF.
Internal 75Ω driver is easy to connect TV monitor directly.
The NJM2573
corresponds to a clamp and bias inputs, and
selection of a clamp/ bias is possible for one circuit, and it
corresponds to various video signals.
The NJM2573
features low power and small package, and
is suitable for low power design on downsizing of DVC.
sFEATURES
q
Operating Voltage
q
Input type
s
PACKAGE OUTLINE
NJM2573SE4
2.8 to 5.5V
Vin1: CLAMP
Vin2: CLAMP/ BIAS
Vin3: BIAS
q
Internal 75Ω Driver Circuit (2-system drive)
q
Internal LPF
q
Internal Power Saving Circuit
q
Bipolar Technology
q
Package Outline
PCSP16
sBLOCK
DIAGRAM
Vcc
16
15
14
13
6dB
Vin1
LPF
CLAMP
6dB
Vin2
LPF
75ΩDriv er
Vout1
1
2
Vsag
1
12
11
10
9
75ΩDriv er
Vout2
3
4
CLAMP/BIAS
SW
Vsag
2
5
CLAMP
BIAS
6dB
Vin3
LPF
75ΩDriv er
Vout3
6
7
8
BIAS
GND
Power Sav e
1. Vin1
2. Power Save
3. Vin2
4. NC
5. GND1
6. Vin3
7. CLAMP/BIAS SW
8. Vout3
9. GND2
10. Vout2
11. Vsag2
+
12. V 2
13. Vout1
14. Vsag1
15. NC
+
16. V 1
Ver.1
-1-
NJM2573
PRELIMINARY
sABSOLUTE
MAXIMUM RATINGS
(Ta=25°C)
PARAMETER
SYMBOL
+
Supply Voltage
V
Power Dissipation
P
D
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
+
RATINGS
7.0
TBD
-40 to +85
-40 to +125
UNIT
V
mW
°C
°C
sELECTRICAL
CHARACTERISTICS
(V =3.0V,R
L
=150Ω,Ta=25°C)
PARAMETER
Operating Voltage
Operating Current
Operating Current
at Power Save
Maximum Output Voltage Swing
SYMBOL
Vopr
I
CC
Isave
Vomv
Vom
RGB
No Signal
Power Save Mode
f=1kHz,THD=1%, CLAMP Input
f=1kHz,THD=1%, BIAS Input
TEST CONDITION
MIN.
2.8
-
-
2.2
1.4
TYP.
3.0
18.0
60
2.4
2.2
MAX.
5.5
26.0
90
-
Vp-p
-
UNIT
V
mA
uA
Voltage Gain
Low Pass Filter Characteristic
Differential Gain
Differential Phase
S/N Ratio
2nd. Distortion
Vin=100kHz, 1.0Vp-p,
Sin Signal (CLAMP)
Gv
6.1
Vin=100kHz 0.7Vp-p,
Sin Signal (BIAS)
Vin=4.5MHz/100kHz, 1.0Vp-p(CLAMP)
Gfy4.5M
-0.5
Vin=4.5MHz/100kHz, 0.7Vp-p(BIAS)
Vin=8MHz/100kHz, 1.0Vp-p(CLAMP)
Gfy8M
-
Vin=8MHz/100kHz, 0.7Vp-p(BIAS)
Vin=16MHz/100kHz, 1.0Vp-p(CLAMP)
Gfy16M
-
Vin=16MHz/100kHz, 0.7Vp-p(BIAS)
(CLAMP) Vin=1.0Vp-p
DG
-
Input 10step Video Signal
(CLAMP) Vin=1.0Vp-p
DP
-
Input 10step Video Signal
(CLAMP) Vin=1.0Vp-p, R
L
=75Ω,
-
SNv
100% White Video Signal
(CLAMP) Vin=1.0Vp-p, 3.58MHz,
Sin Video Signal, R
L
=75Ω
-
Hv
(BIAS) Vin=0.7Vp-p, 3.58MHz,
Sin Video Signal, R
L
=75Ω
VthPH
VthPL
Active
Non-active
1.8
0
6.5
6.9
dB
0.0
-2.0
-12
0.2
0.2
+60
+0.5
-
-
-
-
-
%
deg
dB
dB
-40
-
+
dB
SW Change Voltage High Level
SW Change Voltage Low Level
sCONTROL
TERMINAL
PARAMETER
Power Save
-
-
V
V
0.3
STATUS
H
L
OPEN
H
Power Save: ON
Power Save: OFF
Power Save: OFF
BIAS
CLAMP
CLAMP
NOTE
CLAMP/BIAS SW
L
OPEN
Ver.1
-2-
NJM2573
PRELIMINARY
s
TEST CIRCUIT
75Ω
75Ω
33u
+
out1-2
out1-1
V
+
0.1u
+
10u
33u
+
16
0.1u
in1
75Ω
Vps
2
0.1u
in2
75Ω
4
NC
GND1
5
0.1u
75Ω
+
+
15
NC
14
Vsag1
13
Vout1
V
+
2
12
33u
V
+
1
1
Vin1
Power Save
Vsag2
11
+
NJM2573
3
Vin2
Vout2
10
33u
+
75Ω 75Ω
GND2
Vin3
6
+
9
out2-1 out2-2
C/B SW
7
Vsw
10u
Vout3
8
+
out3-1
75Ω
out3-2
in3
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.
Ver.1
-3-
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