NJM2259M-(TE1) [NJRC]
Consumer Circuit, Bipolar, PDSO16, DMP-16;
| 型号： | NJM2259M-(TE1) |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Consumer Circuit, Bipolar, PDSO16, DMP-16 光电二极管 商用集成电路 |
| 文件： | 总7页 (文件大小：115K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2259
RF Modulator for UHF Band
DESCRIPTION
PACKAGE OUTLINE
The NJM2259 is a RF modulator IC especially designed for UHF
band RF modulator and consists of video clamp circuit, white clip
circuit, video AM modulator and audio FM modulator, built into one
chip.
NJM2259M
FEATURES
•
•
•
•
•
•
•
Operating Voltage 5V
Picture-to-sound ratio is adjustable
Audio ripple is decreased by two internal regulators
Audio input circuit with low shock noise
Carrier-off switch function on chip
Bipolar Technology
Package Outline : DMP16
BLOCK DIAGRAM
16
15
14
13
12
11
10
9
AUDIO
SUBCARRIER
MODULATOR
VIDEO
CLAMP
REGULATOR
LPF
WHITE
CLIP
RF
MIXER
RF OSCILLATOR
REGULATOR
1
2
3
4
5
7
8
6
- 1 -
NJM2259
ABSOLUTE MAXIMUM RATINGS
(TA=25°C)
Parameter
Symbol
VCC
PD
Ratings
7
300
Unit
Supply Voltage
V
Power Dissipation
mW
Input Voltage
Operating Temperature Range
Storage Temperature Range
VI
Topr
Tstg
-0.3 to VCC
-20 to +75
-40 to +125
V
°C
°C
RECOMMENDED OPERATING VOLTAGE RANGE
(TA=25°C)
Parameter
Operating Voltage
Condition
Symbol
VCC
Min.
4.5
Typ.
5.0
Max.
5.5
Unit
V
ELECTRICAL CHARACTERISTICS
(VCC=5V,TA=25°C)
Parameter
Condition
Symbol
ICC
Min.
18
Typ.
Max.
Unit
Operating Current
No video/audio input signal
30
78
32
mA
Video Output Level
Video input Signal (Pin11)=0.5VPP
VO
(73)
(60)
(80)
-
(83)
(90)
(98)
-
dBu
(Note 1)
Video Modulation Depth
(Note 1)
Video input Signal (Pin11)=0.5VPP
mp
75
94
±3
±3
13
%
%
Video Limiter Modulation
Video input Signal (Pin11)=0.5VPP
mpmax
DG
Depth
(Note 1)
Video input signal (Pin11)=0.5VPP
Staircase
Differential Gain
%
Video input Signal (Pin11)=0.5VPP
Staircase
Differential Phase
DP
-
-
deg
dB
Picture-to-sound Ratio
(Note 1)
Video input Signal (Pin11)=0.5VPP
Audio input Signal (Pin16)=70mVPP
PS
(10)
(16)
Sound FM Modulation
ms
(85)
100
0.3
60
(115)
%
%
Depth
(Note 1) 100%=±50kHz dev.
Audio Distortion
Audio Signal-to-noise
Ratio
ms=100%,1kHz sine wave
ms=100%,1kHz sine wave
Video input Signal (Pin11)=1VPP
Audio input Signal (Pin16)=500mVPP
1kHz sine wave
THD
ASN
-
-
-
-
dB
Maximum Sound FM
Modulation
msmax
-
700
-
%
(Note 1) Because AC characteristics largely depends on application circuit, DC test is applied these parameters.
- 2 -
NJM2259
TEST CIRCUIT
AUDIO IN
RF OUT
20k
6p
100p
+ 1u
11
68p
16
15
14
13
12
10
9
1
2
3
4
5
6
7
8
3p
1p
1p
3p
VCC
100p
100p
22p
50k
22p
50k
VCO
- 3 -
NJM2259
TERMINAL CHARACTERISTICS
Typ. DC
No.
1
Symbol
GND 3
Equivalent Circuit
Function
Voltage (V)
GND for
-
RF OSC AMP
2
GND 2
-
GND for RF OSC
3
4
5
6
OSC B1
OSC E1
OSC E2
OSC B2
2.55
1.75
1.75
2.55
RF Oscillator
RF OSC Regulator
Power Supply
7
8
VCC 2
VCC 3
-
-
RF Mixer
Power Supply
9
RF OUT
GND 1
3.95
RF Mixer Output
GND Terminal
except for
10
-
RF Oscillator
11
VIDEO IN
1.70
Video Signal Input
- 4 -
NJM2259
Typ. DC
No.
12
Symbol
VCC 1
Equivalent Circuit
Function
Voltage (V)
-
Power Supply
3.55
TANK 1: H
Picture-to-sound
Ratio Adjust
13
P/S Adj.
2.80
TANK 1: L
H : 3.60
14
15
TANK 2
TANK 1
L : 2.85
H : 3.60
Sound FM
Modulation Circuit
L : 2.85
16
AUDIO IN
-
Audio Signal Input
- 5 -
NJM2259
TYPICAL CHARACTERISTICS
TA=25°C
ICC vs VCC
VIDEO OUTPUT LEVEL vs VCC
84
82
80
78
76
74
50
45
40
35
30
25
20
15
10
5
0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
VCC [ V ]
VCC [ V]
VIDEO MODULATION DEPTH vs VCC
AUDIO FM MODULATION DEPTH vs VCC
125
120
115
110
105
100
95
80
78
76
74
72
70
90
85
80
75
4.0
4.5
5.0
5.5
6.0
6.5
7.0
4.0
4.5
5.0
5.5
6.0
6.5
7.0
VCC [ V]
VCC [ V]
- 6 -
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.
相关型号：
©2020 ICPDF网 联系我们和版权申明