JRC NJM2568V Datasheet
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NJM2568
Video Amplifier with 75 ohms Driver
GENERAL DESCRIPTION ■PACKAGE OUTLINE
■■■■
THE NJM2568
includes LPF and BPF of both Y and C system.
THE NJM2568
items with a little external components. It is suitable for portable
items.
FEATURES
■■■■
●Operating Voltage V
●Operating Current 9.5mAtyp.V
7.3mAtyp.V
●Internal LPF,BPF
●Internal Clamp Discharge
●Bipolar Technology
●Package Outline SSOP14
BLOCK DIAGRAM
■
is a video amplifier with 75 ohms drivers, which
can compose the output circuit of digital video
+
1=4.5 to 5.3V,V+2=2.7 to 5.3V
+
=4.8V
+
=3.0V
COMP.
NJM2568V
101112
14
13
3
Blank
LEVEL
CLAMP
2
1
4
5
BIAS
-6dB
ATT
DISC.
LPF
-6dB
AT T BPF
1.CLAMP REF
2.Y
IN
3.GCA CTLY/MUTE
4.CLAMP
5.DIS CTL
6.GND
7.GND
GCA
6±3dB
GCA
6±3dB
CLAMP
Blank
LEVEL
PowerSave
8.V
SAG
9.V
OUT
10.V+1
+
1
11.V
+
2
12.V
13.GCA CTLC/POWER SAVE
14.C
IN
3v 4.8v
-6dB
+18dB
Vreg
75ΩDriver
8
9
6
7
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ABSOLUTE MAXIMUM RATINGS
■
(Ta=25°C)
NJM2568
PARAMETERS SYMBOL RATINGS UNIT
Supply Voltage V
Power Dissipation P
Operating Temperature Range Topr -20 to +85
Storage Temperature Range Tstg -40 to +125
ELECTRICAL CHARACTERISTICS
■
+
D
( Ta=25°C,V
7.0 V
300 mW
+
1=4.8V,V+2=3.0V,RL=150Ω)
°C
°C
PARAMETERS SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT
Operating Current 1 ICC1V+1=4.8V,No Signal - 9.5 12.5 mA
Operating Current 1
(Power Save Mode)
Isave1 V
+
1=4.8V,Power Save - 1.6 2.1 mA
Operating Current 2 Icc2 V+2=3.0V,No Signal - 7.3 10.0 mA
Operating Current2
(Power Save Mode)
Isave2 V
+
2=3.0V,Power Save - 0.37 0.9 mA
(Y Amplifier)
Voltage Gain 1 GvY1
Voltage Gain 2 GvY2
(C Amplifier)
Voltage Gain 1 GvC1
Voltage Gain 2 GvC2
(Filter Characteristics)
Gf
LPF (YIN)
Gf
Gf
DL
Gf
Gf
BPF (CIN)
Gf
Gf
DL
(YC Delay)
YC Delay T
(Maximum Output Swing)
Y6M
Y7.2M
Y20M
Y
C±1M
C±1.6M
C500k
C20M
C
YC
to V
Y
IN
100kHz,0.5Vp-p @Sine Wave
to V
Y
IN
100kHz,0.5Vp-p @Sine Wave
C
to V
IN
4MHz,143mVp-p @Sine Wave
C
to V
IN
4MHz,143mVp-p @Sine Wave
,GCACTLY=0.5V
OUT
,GCACTLY=2.5V
OUT
,GCACTLY=0.5V
OUT
,GCACTLC=2.5V
OUT
+3.0 +6.0 +9.0 dB
+13.0 +16.0 +19.0 dB
+3.0 +6.0 +9.0 dB
+13.0 +16.0 +19.0 dB
6MHz/100kHz,100mVp-p @Sine Wave -1.0 0 - dB
7.2MHz/100kHz,100mVp-p@Sine Wave -1.5 0 - dB
20MHz/100kHz,100mVp-p@Sine Wave - -30 -20 dB
Group Delay |GD3MHz-GD6MHz|
±1MHz/4MHz,100mV@Sine Wave
±1.6MHz/4MHz,100mV@Sine Wave
- 60 100 nsec
-1.0 0 - dB
-3.0 0 - dB
500kHz/4MHz,100mVp-p@Sine Wave - -15 -10 dB
20MHz/4MHz,100mVp-p@Sine Wave - -25 -10 dB
Group Delay |GD3MHz-GD6MHz|
T
YOUT-TCOUT
at 4MHz - +25 - nsec
-6090nsec
V-OUT V
(GCA Control Signal)
GCACTLY
GCACTLC
OVM
100kHz,Sine Wave,RL=75Ω
1.2 - - Vp-p
VGC1 GCA Control Voltage 0.5 - 2.5 V
V
1 MUTE Voltage GND - 0.3 V
GL
VGC2 GCA Control Voltage 0.5 - 2.5 V
2 Power Down Voltage GND - 0.3 V
V
GL
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