NJM2569 [NJRC]
3ch VIDEO AMPLIFIER FOR COLOR DIFFERENCE SIGNAL; 3通道视频放大器色差信号
| 型号： | NJM2569 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | 3ch VIDEO AMPLIFIER FOR COLOR DIFFERENCE SIGNAL |
| 文件： | 总8页 (文件大小：126K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2569
3ch VIDEO AMPLIFIER FOR COLOR DIFFERENCE SIGNAL
■GENERAL DESCRIPTION
■OUTLINE PACKAGE
The NJM2569 is a 3ch video amplifier for color difference
signal (R-Y,B-Y).
It composes the output circuit of video items for color
difference signal , because prepares clamp circuit , LPF , GCA.
Also it is suitable for portable items because of power save
circuit.
NJM2569V
■FEATURES
■Operating Voltage
4.5 to 5.5V
■Operating Current
17.0mA typ. at Vcc1=4.8V
7.0mA typ. at Vcc2=4.8V
■Operating Current at Power Save 1.5mA typ. at Vcc1=4.8V
5.0uA typ. at Vcc2=4.8V
■Internal Low Pass Filter
■Internal Gain Control Amplifier
■Bipolar Technology
■Package Outline
SSOP20
■BLOCK DIAGRAM
16
13
1
10
8
14
PIN FUNCTION
1.Vcc1
VREF
19
2.Cb in
PWRSAVE
3.GCA CTL2
4.Cr in
20
LPF
LPF
GCA
GCA
+
12
-
5.GCA CTL3
6.CLAMP3
7.Cr out
CLAMP
CLAMP
CLAMP
18
17
11
8.GND1
9.Cb out
2
10.GND2(Driver)
11.YSAG
+
9
-
CLAMP
12.Yout
13.Vcc2(Driver)
14.Vref
3
15
15.CLAMP2
16.NC
4
LPF
GCA
17.CLAMP1
18.GCA CTL1
19.CP
+
7
-
CLAMP
CLAMP
5
6
20.Yin
Ver.1
- 1 -
NJM2569
■ABSOLUTE MAXIMUM RATINGS
(Ta=25°C)
UNIT
PARAMETER
Supply Voltage
SYMBOL
Vcc
RATINGS
7.0
V
mW
°C
Power Dissipation
PD
300
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
-40 to +85
-40 to +125
°C
■RECOMMENDED OPERATING CONDITIONS
(Ta=25°C)
TYP. MAX. UNIT
4.8 5.5
PARAMETER
SYMBOL
Vopr
TEST CONDITION
MIN.
4.5
Operating Voltage
Vcc1,Vcc2-GND1,GND2
V
■ELECTRICAL CHARACTERISTICS (Vcc1=4.8V,Vcc2=4.8V,RL=75Ω,Ta=25°C)
PARAMETER
Operating Current 1
Operating Current 2
SYMBOL
Icc1
TEST CONDITION
MIN. TYP. MAX. UNIT
Vcc1
Vcc2
-
-
17.0
7.0
27.0
12.0
mA
mA
Icc2
Operating Current
at Power Save 1
Operating Current
at Power Save 2
Icc1ps Vcc1, At Power Save
Icc2ps Vcc2, At Power Ssave
-
-
1.5
5.0
5.0
mA
uA
100.0
[ Y Amplifier Characteristics ]
YIN→YOUT, GCACTL1=0.5V, 0.5Vpp, Input Sine
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
GvY1
-2.6
3.3
8.2
0.4
6.3
3.4
9.3
dB
dB
dB
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
YIN→YOUT, GCACTL1=1.3V, 0.5Vpp, Input Sine
GvY2
GvY3
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
YIN→YOUT, GCACTL1=2.5V, 0.5Vpp,Input Sine
11.2
14.2
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
[ Cb Amplifier Characteristics ]
CbIN→CbOUT, GCACTL2=0.5V, 0.35Vpp, Input Sine
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
CbIN→CbOUT, GCACTL2=1.3V, 0.35Vpp, Input Sine
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
GvCb1
GvCb2
GvCb3
-2.6
3.3
8.2
0.4
6.3
3.4
9.3
dB
dB
dB
CbIN→CbOUT, GCACTL2=2.5V, 0.35Vpp, Input Sine
11.2
14.2
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
[ Cr Amplifier Characteristics ]
CrIN→CrOUT, GCACTL3=0.5V, 0.35Vpp,Input Sine
Voltage Gain 1
Voltage Gain 2
GvCr1
-2.6
3.3
8.2
0.4
6.3
3.4
9.3
dB
dB
dB
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
CrIN→CrOUT, GCACTL3=1.3V, 0.35Vpp,Input Sine
GvCr2
GvCr3
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
CrIN→CrOUT, GCACTL3=2.5V, 0.35Vpp,Input Sine
Voltage Gain 3
11.2
14.2
Wave Video Signal (100kHz, 0.35Vpp Sine Wave)
[ GCA Control Signal ]
VGH
VGL
GCACTL1,2,3 Input control voltage range
MUTE change value
0.5
0
-
-
Vcc
0.3
GCACTL
V
Ver.1
- 2 -
NJM2569
■ELECTRICAL CHARACTERISTICS (Vcc1=4.8V,Vcc2=4.8V,RL=75Ω,Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
[ Filter Characteristics ]
6.75MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
GfY6.75M
GfY12M
-3.0
-1.0
-3.0
-
-
dB
dB
dB
dB
dB
dB
dB
12MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
LPF(YIN→YOUT
)
-
27MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
GfY27M
-
-3.0
-
-40.0 -15.0
-1.0
-40.0 -15.0
-1.0
-40.0 -15.0
6.75MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
GfCb6.75M
GfCb27M
GfCr6.75M
GfCr27M
-
LPF(CbIN→CbOUT
)
27MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
6.75MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
-3.0
-
-
LPF(CrIN→CrOUT
)
27MHz/100kHz, input sine wave video signal
(100mVpp sine wave)
[ Crosstalk Characteristics ]
Input Red Field Signal(3.58MHz) to YIN.
Measure CrOUT/YOUT.
Crosstalk 1
CT1
-
-
-
-
-
-
-
-
-
-50
-50
-50
-50
-50
-50
-50
-50
-50
-
-
-
-
-
-
-
-
-
dB
dB
dB
dB
dB
dB
dB
dB
dB
Input Red Field Signal(3.58MHz) to YIN.
Measure CbOUT/YOUT.
Crosstalk 2
CT2
CT3
Input Red Field Signal(3.58MHz) to CbIN.
Measure YOUT/CbOUT.
Crosstalk 3
Input Red Field Signal(3.58MHz) to CbIN.
Measure CrOUT/CbOUT.
Crosstalk 4
CT4
Input Red Field Signal(3.58MHz) to CrIN.
Measure YOUT/CrOUT.
Crosstalk 5
CT5
Input Red Field Signal(3.58MHz) to CrIN.
Measure CbOUT/CrOUT.
Crosstalk 6
CT6
Input Red Field Signal(3.58MHz) to YIN.
Measure ratio of YIN to YOUT at MUTE.
Input Red Field Signal(3.58MHz) to CbIN.
Measure ratio of CbIN to CbOUT at MUTE.
Input Red Field Signal(3.58MHz) to CrIN.
Measure ratio of CrIN to CrOUT at MUTE.
MUTE Crosstalk 1
MUTE Crosstalk 2
MCT1
MCT2
MCT3
MUTE Crosstalk 3
[ S/N Ratio]
Band width 100kHz to 6MHz, RL=75Ω,
Y System S/N
SNY
SNCb
SNCr
-
-
-
-55
-55
-55
-
-
-
dB
dB
dB
Input 100% White Video Signal. Measure YOUT.
Band width 100kHz to 6MHz, RL=75Ω,
Cb System S/N
Input 100% White Video Signal. Measure CbOUT.
Band width 100kHz to 6MHz, RL=75Ω,
Cr System S/N
Input 100% White Video Signal. Measure CrOUT.
[ CP Signal *]
VCPH ON level
VCPL OFF level
2.4
0
-
-
Vcc
0.8
CP Input
V
Change Voltage
Ver.1
- 3 -
NJM2569
*CP Input
Don’t put CP signal on Sync signal and picture period. Keep margin of 0.2uS over of ∆t1 and ∆t2.
H: Hsync.
T: Back Porch period
H
T
∆t1
∆t2
CP
Ver.1
- 4 -
NJM2569
■TEST CIRCUIT
20
19
18
17
16
15
14
13
12
11
YIN
SYNCIN GCACTL1 CLAMP1
NC
CLAMP2
VREF
VCC2
YOUT
SAG
NJM2569
GCACTL3 CLAMP3 CrOUT
VCC1
Cb
GCACTL2
Cr
GND1
CbOUT
GND2
1
2
3
4
5
6
7
8
9
10
Ver.1
- 5 -
NJM2569
■TYPICAL CHARACTERISTICS
Operating Current 1 vs. Supply Voltage
(Ta=25°C)
Operating Current 2 vs. Supply Voltage
(Ta=25°C)
30
25
20
15
10
5
30
25
20
15
10
5
0
0
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Supply Voltage Vcc1,2(V)
Supply Voltage Vcc1,2(V)
ꢀ
ꢀ
Operating Current at Power Save 1 vs. Supply Voltage
(Ta=25°C)
Operating Current at Power Save 2 vs. Supply Voltage
(Ta=25°C)
30
25
20
15
10
5
30
25
20
15
10
5
0
0
-5
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Supply Voltage Vcc1,2(V)
Supply Voltage Vcc1,2(V)
ꢀ
Cb System Filter Characteristics
(Vcc=4.8V)
Y System Filter Characteristics
(Vcc=4.8V)
10
0
5
0
-5
-10
-20
-30
-40
-50
-60
-10
-15
-20
-25
-30
-35
-40
0.1
1
10
Frequency f (MHz)
100
0.1
1
10
Frequency f(MHz)
100
Ver.1
- 6 -
NJM2569
■TYPICAL CHARACTERISTICS
Y System GAIN vs. GCACTL
Cr System Filter Characteristics
(Vcc=4.8V)
(Vcc=4.8V)
14
12
10
8
10
0
-10
-20
-30
-40
-50
6
4
2
0
0.1
1
10
Frequency f (MHz)
100
0
0.5
1
1.5
2
2.5
3
GCACTL (V)
Cb System GAIN vs. GCACTL
(Vcc=4.8V)
Cr System GAIN vs. GCACTL
(Vcc=4.8V)
14
12
10
8
14
12
10
8
6
6
4
4
2
2
0
0
0
0.5
1
1.5
2
2.5
3
0
0.5
1
1.5
2
2.5
3
GCACTL (V)
GCACTL (V)
Ver.1
- 7 -
NJM2569
MEMO
[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
- 8 -
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