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參數(shù)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(shù)： | 11/23頁 |
| 文件大?。?/td> | 1016K |
| 代理商： | MGM3000X |
MGM 3000X
Semiconductor Group
11
Setting time for video
blanking signal from
100 % white level to
42 % grey level with
subsequent rise in
grey level to 71 % of
video blanking signal
(due to decontrol
process).
t
0.4
2
10
min
1
Audio
Audio oscillator
frequency range;
unloaded
Q
factor of
resonance circuit
Q
U
= 25;
f
resonance
= 5.5 MHz.
f
A/OSC
4
7
MHz
1
Switch-on, warm-up
drift of oscillator
frequency; TC-value
of capacitor in audio
oscillator circuit is 0,
the drift is only based
on self-heating of
component.
f
A/OSC
5
kHz
T
A
= const.;
> 5 s after switching on
1
Audio signal
frequency devitation
f
A/OSC
5
kHz
V
S
= 12 V
±
10 %
Q
U
= 25
1
AM-Audio
AM-mod. factor
m
50
70
%
V
AF
= 90 mVrms
9
AM-mod.; total
harmonic distortion
THD
AM
0.5
3
%
m
= 80 %;
V
AF
= 117 mVrms;
f
AF
= 1 kHz
9
Audio preamplifier
input impedance
Z
18
25
50
75
k
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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