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參數(shù)資料
| 型號： | STV8224B |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Multistandard Video and Sound IF System with Audio and Video Switches(低音頻和視頻開關(guān)的多標(biāo)準(zhǔn)視頻和聲音IF系統(tǒng)) |
| 中文描述： | 多標(biāo)準(zhǔn)視頻和聲音中頻與音頻視頻開關(guān)系統(tǒng)（低音頻和視頻開關(guān)的多標(biāo)準(zhǔn)視頻和聲音中頻系統(tǒng)） |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 133K |
| 代理商： | STV8224B |
8
7
6
5
4
3
2
1
0
38.55
38.95
39.35
38.75
IF FREQUENCY (MHz)
39.15
A
CurrentConversion
with 100k
/100k
Bridge
8
Figure 21 :
AFC VoltagePin 2 vs IF Frequency
0
-10
-20
-30
-40
-50
-60
-70
-80
1.0
2.0
3.0
4.0
5.0
V
(V)
13
V
A
8
Figure 22 :
VolumeControl Attenuationvs V
13
2
1.75
1.5
1.25
1
0.75
0.5
0.25
0
1
10
(mV
10
2
V
)
IN
RMS
T
10
-1
10
3
R24 = 1k
R24 = 3k
R24 = 5k
8
Figure 23 :
TunerAGC Output Current vs V
IN
(R24 is external adjustmentPin 24)
1.3
1.9
2.5
3.6
4.2
4.85
V
3
(V)
t
White Spike Noise Clamp
Top White
White Noise Level Insertion
Black Noise Level Insertion
Top Synchronization
Black Spike Noise Clamp
8
Figure 25 :
Blackand White Noise Inverter
100
10
1
0.1
0.01
0
10
20
30
40
50
60
70
80
S
V
IN
(mV
RMS
)
8
Figure 24 :
Video Signal to Noise Ratio (Pin 3)
as a functionof IFInputSignal
(Pins 19-20) Weighted CCIR-567
STV8224B
9/12
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