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STV8224B Scheda tecnica(PDF) 5 Page - STMicroelectronics

Il numero della parte STV8224B
Spiegazioni elettronici  MULTISTANDARD VIDEO AND SOUND IF SYSTEM WITH AUDIO AND VIDEO SWITCHES
PDF  12 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV8224B Scheda tecnica(HTML) 5 Page - STMicroelectronics

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ELECTRICAL CHARACTERISTICS (continued)
(Tamb =25
°C, VCC = 9V, IF input = 10mVRMS synclevel at B/G, Peak-white level at L,
Video modulation DSB, D = 90% at B/G, D = 95% at L, fPC = 38.9MHz, fSC = 33.4MHz,
Video BW = 5MHz, Sound carrier input : 5.5MHz, 10mVRMS,fM = 1kHz, Audio BW = 20kHz,
∆f= ±50kHz,
Volume attenuation = 0dB, unless otherwise specified)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
AUDIO SWITCH
R16
Input Resistance
55
70
85
k
Ω
CRtk
Crosstalk
70
80
dB
En
Output Noise Level (Pin 14)
Weighted CCIR 468-4, V13 = 0.5V
(quasi peak level)
70
µV
EXTHD
THD on External Signal (Pin 14)
VIN =2VRMS, Attenuation = 0dB
0.1
0.3
%
Audio Reference Voltage (Pin 9)
4.5
V
VIDEO SWITCH
VDC 12
DC Input Level
No signal
1.6
1.9
2.2
V
VS12
Top Sync. Clamp Level
1.8
V
V11
DC Output Level
No signal
1.7
2
2.3
V
VS11
Top Sync. Clamp Level
1.5
V
Crosstalk
55
dB
GEX
Gain from Ext. Input to Output
5.5
6
6.5
dB
Output Swing
4
5
V
I12
Input Current
V12 =VDC12 = 1.5V
1
5
µA
VBW
Bandwidth
VIN =1VPP
15
MHz
GIN
Gain from Int. Input to Output
-0.5
0
+0.5
dB
MUTE (Pin 13)
VTH13
Threshold Voltage Pin 13
0.2
0.3
0.4
V
CONTROL INPUT
Negative Modulation
Video : External - Audio : External
7.2
V
Threshold 3
Level linked to VCC
6.4
6.8
7.2
V
Positive Modulation
Video : External - Audio : External
4.9
6.4
V
Threshold 2
Level linked to VCC
4.1
4.5
4.9
V
Positive Modulation
Video : Internal - Audio : External
2.6
4.1
V
Threshold 1
Level linked to VCC
1.8
2.2
2.6
V
Negative Modulation
Video : Internal - Audio : Internal
1.8
V
STV8224B
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