NJM2519A PDF даташит
Спецификация NJM2519A изготовлена «New Japan Radio» и имеет функцию, называемую «RF Modulator for VHF Band». |
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Детали детали
Номер произв | NJM2519A |
Описание | RF Modulator for VHF Band |
Производители | New Japan Radio |
логотип |
8 Pages
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NJM2519A
RF Modulator for VHF Band
DESCRIPTION
The NJM2519A is a RF modulator IC especially designed for VHF
band RF modulator and consists of video clamp circuit, white clip circuit,
video AM modulator and audio FM modulator, built into one chip.
FEATURES
• Operating Voltage 5V
• VHF Oscillator on chip
• Regulator on chip
• Bipolar Technology
• Package Outline: DMP8
PACKAGE OUTLINE
NJM2519AM
BLOCK DIAGRAM
8 76 5
RF OSC
REGULATOR
MIXER
1
AUDIO FM
MODULATOR
CLAMP &
WHITE CLIP
2 34
-1-
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NJM2519A
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Supply Voltage
Power Dissipation
VCC
PD
Input Voltage
Operating Temperature Range
Storage Temperature Range
VI
Topr
Tstg
Ratings
7
300
-0.3 to VCC
-20 to +75
-40 to +125
(TA=25°C)
Unit
V
mW
V
°C
°C
RECOMMENDED OPERATING VOLTAGE RANGE
(TA=25°C)
Parameter
Condition
Symbol Min. Typ. Max. Unit
Operating Voltage
VCC 4.5 5.0 5.5
V
ELECTRICAL CHARACTERISTICS
Parameter
Condition
Symbol
Operating Current
No video/audio input signal,
Video
Output
Level
(Note
1)
Video
input
signal(Pin1)=0.5VPP
ICC
VO
Video
Modulation
Depth
(Note 1)
Video
input
signal(Pin1)=0.5VPP
mp
Video Limiter Modulation Video input signal(Pin1)=1.0VPP
Depth
(Note 1)
mpmax
Differential Gain
Video input signal(Pin1)=0.5VPP
Staircase
DG
Differential Phase
Video input signal(Pin1)=0.5VPP
Staircase
DP
Picture-to-sound Ratio
(Note 1)
Video input signal(Pin1)=0.5VPP
PS
Sound FM Modulation
Sensitivity
Deviation of fs per 100mV
βb
Audio Distortion
Audio input signal(Pin7)=0.05VPP
1kHz sine wave
THD
Audio Signal-to-noise
Ratio
Sound Modulation 60%
1kHz sine wave
ASN
Maximum Sound FM
Modulation
Audio input signal(Pin7)=1.0VPP
1kHz sine wave
msmax
Min.
11.5
(83)
(70)
(88)
-
-
(13)
-
-
-
-
(VCC=5V,TA=25°C)
Typ. Max. Unit
15.3 19.1 mA
86 (89) dBu
76 (82) %
94 (98) %
±3 - %
±3 - deg
16 (19) dB
0.51 - KHz/mV
0.3 -
%
60 - dB
700 -
%
(Note 1) Because AC characteristics largely depends on application circuit, these parameters are specified
by the DC characteristics as shown in next page.
-2-
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NJM2519A
DC ELECTRICAL CHARACTERISTICS (VCC=5V,TA=25°C, otherwise noted. All measurements performed in
the DC test circuit are shown in next page)
Parameter
Condition
(Note 2) Symbol Min. Typ. Max. Unit
Video Output Signal
Amplitude 1
Video Modulation Depth
Video Limiter Modulation
Depth
(Note 2)
Gvv1=Gvvh-Gvvl
Mp=((Gvv-Mw)/Gvv)x100
where Mw=Mwh-Mwl
Mpmax=((Gvv-Wc)/Gvv)x100
where Wc=Wch-Wcl
Gvv
Mp
Mpmax
48
66
85
- 108 mV
- 78 %
94 98 %
Picture-to-sound Ratio Ps=20log(Gvv/(Gva/2))
Ps 8
- 18 dB
(Note 2) Explanation of symbols
• Vv : VIDEO IN output voltage at Pin3
• Voso : OSC output voltage at Pin8
• Gvvh : RF OUT output voltage at Pin1
OSC(Pin8) input = Voso+0.3V
• Gvvl : RF OUT output voltage at Pin1
OSC(Pin8) input = Voso-0.3V
• Mwh : RF OUT output voltage at Pin1
OSC (Pin 8) input = Voso+0.3V,VIDEO IN(Pin3) input=Vv + 0.41V
• Mwl : RF OUT output voltage at Pin1
OSC (Pin 8) input = Voso-0.3V,VIDEO IN(Pin3) input=Vv + 0.41V
• Wch : RF OUT output voltage at Pin1
OSC (Pin 8) input = Voso+0.3V,VIDEO IN(Pin3) input=Vv + 0.75V
• Wcl : RF OUT output voltage at Pin1
OSC (Pin 8) input = Voso-0.3V,VIDEO IN(Pin3) input=Vv + 0.75V
• Gva : RF OUT output level at Pin1(4.5MHz Sine wave [peak to peak])
OSC(Pin8) input = Voso+0.6V
-3-
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Номер в каталоге | Описание | Производители |
NJM2519A | RF Modulator for VHF Band | New Japan Radio |
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