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參數資料
| 型號： | MGM3000X |
| 廠商： | SIEMENS A G |
| 元件分類： | 消費家電 |
| 英文描述： | Video Modulator for FM/AM-Audio |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 文件頁數： | 9/23頁 |
| 文件大小： | 1016K |
| 代理商： | MGM3000X |
MGM 3000X
Semiconductor Group
9
All remaining
harmonic waves;
multiple of funda-
mental wave of video
carrier, without video
signal, measured with
spectrum analyzer;
f
VC
= 523.25-
623.25 MHz; pin 14
open.
a
15
dB
1
Residual carrier
suppression
a
R
32
dB
Ch 30 … 40
3
Signal-to-noise in
video; unmodulated
audio carrier
a
N/V
48
74
dB
Ch 60
4
Interference product
ratio audio in video
AM-modulation
FM-modulation
of audio carrier
a
A/V
a
A/V
49
48
62
60
dB
dB
Ch 60;
m
A
= 90 %
Ch 60;
±
35 kHz
4
4
Unweighted AM
Unweighted FM
Interference level ratio
video in audio
a
V/A
a
V/A
48
48
54
54
dB
dB
Ch 39;
test picture FuBK
Ch 39;
test picture FuBK
5
5
Signal-to-noise ratio
of audio oscillator
a
N/A
a
N/A
48
48
54
54
dB
dB
AM unmodulated
FM video carrier
5
5
Video
Video input current
at pin 12
– I
12
0
1
μ
A
C
12
≤
100 nF
1
Video input voltage
at pin 12
V
12
0.7
1.4
Vpp
C
12
≤
100 nF
1
AC/DC Characteristics
(cont’d)
T
A
= 25
°
C;
V
S
= 12 V
Parameter
Symbol
Limit Values
Unit
Test Condition
Test
Circuit
min.
typ.
max.
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