NJM2568 PDF даташит
Спецификация NJM2568 изготовлена «New Japan Radio» и имеет функцию, называемую «Video Amplifier with 75 ohms Driver». |
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Детали детали
Номер произв | NJM2568 |
Описание | Video Amplifier with 75 ohms Driver |
Производители | New Japan Radio |
логотип |
4 Pages
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NJM2568
Video Amplifier with 75 ohms Driver
sGENERAL 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.
sFEATURES
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
COMP.
3
Blank
LEVEL
CLAMP
-6dB
GCA
6±3dB
2
ATT LPF
CLAMP
1
4
5 DISC.
Blank
LEVEL
BIAS
-6dB
GCA
6±3dB
14 ATT BPF
sPACKAGE OUTLINE
NJM2568V
12 11 10
3v
Vreg
4.8v
-6dB
+18dB 75ΩDriver
13 PowerSave
8
9
6
7
1.CLAMP REF
2.YIN
3.GCA CTLY/MUTE
4.CLAMP
5.DIS CTL
6.GND
7.GND
8.VSAG
9.VOUT
10.V+1
11.V+1
12.V+2
13.GCA CTLC/POWER SAVE
14.CIN
-1-
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NJM2568
sABSOLUTE MAXIMUM RATINGS
PARAMETERS
Supply Voltage
Power Dissipation
Operating Temperature Range
Storage Temperature Range
SYMBOL
V+
PD
Topr
Tstg
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,RL=150Ω)
PARAMETERS
SYMBOL
TEST CONDITION
Operating Current 1
Operating Current 1
(Power Save Mode)
Operating Current 2
Operating Current2
(Power Save Mode)
ICC1
Isave1
Icc2
Isave2
V+1=4.8V,No Signal
V+1=4.8V,Power Save
V+2=3.0V,No Signal
V+2=3.0V,Power Save
(Y Amplifier)
MIN. TYP. MAX. UNIT
- 9.5 12.5 mA
- 1.6 2.1 mA
- 7.3 10.0 mA
- 0.37 0.9 mA
Voltage Gain 1
Voltage Gain 2
GvY1
GvY2
YIN to VOUT,GCACTLY=0.5V
100kHz,0.5Vp-p @Sine Wave
YIN to VOUT,GCACTLY=2.5V
100kHz,0.5Vp-p @Sine Wave
+3.0 +6.0 +9.0 dB
+13.0 +16.0 +19.0 dB
(C Amplifier)
Voltage Gain 1
Voltage Gain 2
GvC1
GvC2
CIN to VOUT,GCACTLY=0.5V
4MHz,143mVp-p @Sine Wave
CIN to VOUT,GCACTLC=2.5V
4MHz,143mVp-p @Sine Wave
+3.0 +6.0 +9.0 dB
+13.0 +16.0 +19.0 dB
(Filter Characteristics)
LPF (YIN)
BPF (CIN)
(YC Delay)
GfY6M 6MHz/100kHz,100mVp-p @Sine Wave -1.0 0 - dB
GfY7.2M 7.2MHz/100kHz,100mVp-p@Sine Wave -1.5 0 - dB
GfY20M 20MHz/100kHz,100mVp-p@Sine Wave
- -30 -20 dB
DLY Group Delay |GD3MHz-GD6MHz|
- 60 100 nsec
GfC±1M ±1MHz/4MHz,100mV@Sine Wave
-1.0 0 - dB
GfC±1.6M ±1.6MHz/4MHz,100mV@Sine Wave
-3.0 0 - dB
GfC500k 500kHz/4MHz,100mVp-p@Sine Wave
- -15 -10 dB
GfC20M 20MHz/4MHz,100mVp-p@Sine Wave
- -25 -10 dB
DLC Group Delay |GD3MHz-GD6MHz|
- 60 90 nsec
YC Delay
(Maximum Output Swing)
TYC TYOUT-TCOUT at 4MHz
- +25 - nsec
V-OUT
(GCA Control Signal)
VOVM 100kHz,Sine Wave,RL=75Ω
1.2 -
- Vp-p
GCACTLY
GCACTLC
VGC1
VGL1
VGC2
VGL2
GCA Control Voltage
MUTE Voltage
GCA Control Voltage
Power Down Voltage
0.5 - 2.5 V
GND - 0.3 V
0.5 - 2.5 V
GND - 0.3 V
-2-
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sTEST CIRCUIT
C IN G C A C TLC V +2
V +1
S2
A
B
47uF
+
47uF
+
75Ω 50Ω
S4
AB
1000pF
1000pF 1000pF
++
0 .1 u F
14 13 12 11
NJM2568
VOUT1 VOUT2
75Ω
75Ω
100uF
+
22uF
+
10 9
8
N JM 2568
1uF +
12
0 .1 u F
S3
3
AB
S1
AB
1000pF
45
+
1MΩ 1uF
20kΩ
67
GND
GND
20kΩ
75Ω 50Ω
Y IN
G C A C TLY
D IS C .C T L
-3-
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