j
Video Amplifier with 75 ohms Driver
s
GENERAL DESCRIPTION
THE NJM2568
is a video amplifier with 75 ohms drivers, which
includes LPF and BPF of both Y and C system.
THE NJM2568
can compose the output circuit of digital video
items with a little external components. It is suitable for portable
items.
s
FEATURES
+
+
qOperating
Voltage V 1=4.5 to 5.3V,V 2=2.7 to 5.3V
+
qOperating
Current 9.5mAtyp.V =4.8V
+
7.3mAtyp.V =3.0V
qInternal
LPF,BPF
qInternal
Clamp Discharge
qBipolar
Technology
qPackage
Outline SSOP14
sBLOCK
DIAGRAM
12
COMP.
NJM2568
sPACKAGE
OUTLINE
NJM2568V
11
10
3
Blank
LEVEL
3v
Vreg
4.8v
CLAMP
-6dB
GCA
6±3dB
2
ATT
LPF
CLAMP
-6dB
+18dB
75ΩDriver
1
4
5
DISC.
Blank
LEVEL
8
9
6
BIAS
-6dB
GCA
6±3dB
7
14
13
ATT
BPF
PowerSave
1.CLAMP REF
2.Y
IN
3.GCA CTLY/MUTE
4.CLAMP
5.DIS CTL
6.GND
7.GND
8.V
SAG
9.V
OUT
+
10.V 1
+
11.V 1
+
12.V 2
13.GCA CTLC/POWER SAVE
14.C
IN
-1-
j
sABSOLUTE
MAXIMUM RATINGS
PARAMETERS
SYMBOL
+
Supply Voltage
V
Power Dissipation
P
D
Operating Temperature Range
Topr
Storage Temperature Range
Tstg
+
NJM2568
RATINGS
7.0
300
-20 to +85
-40 to +125
+
(Ta=25°C)
UNIT
V
mW
°C
°C
sELECTRICAL
CHARACTERISTICS
( Ta=25°C,V 1=4.8V,V 2=3.0V,R
L
=150Ω)
PARAMETERS
Operating Current 1
Operating Current 1
(Power Save Mode)
Operating Current 2
Operating Current2
(Power Save Mode)
(Y Amplifier)
Voltage Gain 1
Voltage Gain 2
(C Amplifier)
Voltage Gain 1
Voltage Gain 2
(Filter Characteristics)
Gf
Y6M
Gf
Y7.2M
Gf
Y20M
DL
Y
Gf
C±1M
Gf
C±1.6M
Gf
C500k
Gf
C20M
DL
C
T
YC
6MHz/100kHz,100mVp-p @Sine Wave
7.2MHz/100kHz,100mVp-p@Sine Wave
20MHz/100kHz,100mVp-p@Sine Wave
Group Delay
|GD3MHz-GD6MHz|
±1MHz/4MHz,100mV@Sine
Wave
±1.6MHz/4MHz,100mV@Sine
Wave
500kHz/4MHz,100mVp-p@Sine Wave
20MHz/4MHz,100mVp-p@Sine Wave
Group Delay
|GD3MHz-GD6MHz|
T
YOUT-
T
COUT
at 4MHz
-1.0
-1.5
-
-
-1.0
-3.0
-
-
-
0
0
-30
60
0
0
-15
-25
60
-
-
-20
100
-
-
-10
-10
90
dB
dB
dB
nsec
dB
dB
dB
dB
nsec
Gv
C
1
Gv
C
2
C
IN
to V
OUT
,GCACTLY=0.5V
4MHz,143mVp-p @Sine Wave
C
IN
to V
OUT
,GCACTLC=2.5V
4MHz,143mVp-p @Sine Wave
+3.0
+6.0
+9.0
dB
dB
Gv
Y
1
Gv
Y
2
Y
IN
to V
OUT
,GCACTLY=0.5V
100kHz,0.5Vp-p @Sine Wave
Y
IN
to V
OUT
,GCACTLY=2.5V
100kHz,0.5Vp-p @Sine Wave
+3.0
+6.0
+9.0
dB
dB
SYMBOL
I
CC
1
Isave1
Icc2
Isave2
+
+
+
+
TEST CONDITION
V 1=4.8V,No Signal
V 1=4.8V,Power Save
V 2=3.0V,No Signal
V 2=3.0V,Power Save
MIN. TYP. MAX. UNIT
-
-
-
-
9.5
1.6
7.3
0.37
12.5
2.1
10.0
0.9
mA
mA
mA
mA
+13.0 +16.0 +19.0
+13.0 +16.0 +19.0
LPF (Y
IN
)
BPF (C
IN
)
(YC Delay)
YC Delay
(Maximum Output Swing)
V-OUT
(GCA Control Signal)
GCACTLY
GCACTLC
V
GC
1
V
GL
1
V
GC
2
V
GL
2
GCA Control Voltage
MUTE Voltage
GCA Control Voltage
Power Down Voltage
0.5
GND
0.5
GND
-
-
-
-
2.5
0.3
2.5
0.3
V
V
V
V
V
OVM
100kHz,Sine Wave,R
L
=75Ω
1.2
-
-
Vp-p
-
+25
-
nsec
-2-
stm32/stm8
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