NJRC NJM2573

NJM2573
PRELIMINARY
LOW VOLTAGE 3ch VIDEO AMPLIFIER WITH LPF
■ 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.
■ PACKAGE OUTLINE
NJM2573SE4
■FEATURES
● Operating Voltage
● Input type
2.8 to 5.5V
Vin1: CLAMP
Vin2: CLAMP/ BIAS
Vin3: BIAS
● Internal 75Ω Driver Circuit (2-system drive)
● Internal LPF
● Internal Power Saving Circuit
● Bipolar Technology
● Package Outline
PCSP16
■BLOCK DIAGRAM
16
Vcc
6dB
Vin1
75ΩDriv er
LPF
15
14
13
1
12
2
11
3
10
4
9
Vout1
CLAMP
Vsag
1
6dB
Vin2
75ΩDriv er
LPF
Vout2
CLAMP/BIAS
SW
Vsag
2
5
CLAMP
BIAS
6dB
Vin3
75ΩDriv er
Vout3
LPF
BIAS
GND
Power Sav e
6
7
8
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
■ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
PARAMETER
SYMBOL
+
Supply Voltage
V
Power Dissipation
PD
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
RATINGS
7.0
TBD
-40 to +85
-40 to +125
UNIT
V
mW
°C
°C
+
■ELECTRICAL CHARACTERISTICS (V =3.0V,RL=150Ω,Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
2.8
3.0
5.5
V
No Signal
-
18.0
26.0
mA
-
60
90
uA
Operating Voltage
Vopr
Operating Current
ICC
Operating Current
at Power Save
Isave
Power Save Mode
Vomv
f=1kHz,THD=1%, CLAMP Input
2.2
2.4
-
Vom
RGB
f=1kHz,THD=1%, BIAS Input
1.4
2.2
-
6.5
6.9
0.0
+0.5
-2.0
-
-12
-
0.2
-
%
0.2
-
deg
+60
-
dB
-40
-
dB
1.8
-
V
0
-
0.3
Maximum Output Voltage Swing
Voltage Gain
Low Pass Filter Characteristic
Differential Gain
Differential Phase
S/N Ratio
2nd. Distortion
Vp-p
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, RL=75Ω,
SNv
100% White Video Signal
(CLAMP) Vin=1.0Vp-p, 3.58MHz,
Sin Video Signal, RL=75Ω
Hv
(BIAS) Vin=0.7Vp-p, 3.58MHz,
Sin Video Signal, RL=75Ω
SW Change Voltage High Level
VthPH
Active
SW Change Voltage Low Level
VthPL
Non-active
dB
dB
+
V
■CONTROL TERMINAL
PARAMETER
Power Save
CLAMP/BIAS SW
STATUS
NOTE
H
Power Save: ON
L
Power Save: OFF
OPEN
Power Save: OFF
H
BIAS
L
CLAMP
OPEN
CLAMP
Ver.1
-2-
NJM2573
PRELIMINARY
■ TEST CIRCUIT
33u
0.1u
in1
+
75Ω
out1-2
75Ω
out1-1
+
15
14
13
V+1
NC
Vsag1
Vout1
1
2
Power Save
0.1u
+
10u
33u
+
16
Vin1
V+
V+2
12
Vsag2
11
75Ω
Vps
33u
NJM2573
0.1u
in2
+
+
33u
3
Vin2
Vout2
10
4
NC
GND2
9
75Ω 75Ω
+
75Ω
GND1
Vin3
C/B SW
Vout3
5
6
7
8
0.1u
+
Vsw
10u
out2-1 out2-2
+
out3-1
75Ω
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-