STV8223A Ver la hoja de datos (PDF) - STMicroelectronics
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STV8223A Datasheet PDF : 10 Pages
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STV8223A
ELECTRICAL CHARACTERISTICS (continued)
(Tamb = 25°C, VCC = 9V, IF input = 10mVRMS sync level at B/G, Video modulation DSB,
D = 90% at B/G, 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
FM SOUND DEMODULATION
V8S
R8
AMR
SVR
V15
THD
R15
S/N
Input Sensitivity
Limiter Input Resistance
Amplitude Modulation Rejection
Supply Voltage Rejection Ratio
Detected Audio Output Signal
Total Harmonic Distortion
Internal Deemphasis Resistor
Signal to Noise Ratio
VOLUME CONTROL
VC Range Control Range
AUDIO SWITCH
R16
CRtk
EXTHD
Input Resistance
Crosstalk
THD on External Signal
VIDEO SWITCH
VDC 12
VS12
V11
VS11
GEX
I12
VBW
GIN
DC Input Level
Top Sync. Clamp Level
DC Output Level
Top Sync. Clamp Level
Crosstalk
Gain from External Input to Output
Output Swing
Input Current
Bandwidth
Gain from Internal Input to Output
MUTE (Pin 9 or Pin 13)
VT H9
V9
VTH13
Threshold Voltage Pin 9
DC Level when Mute Disabled
Threshold Voltage Pin 13
CONTROL INPUT
Negative Modulation
Positive Modulation
Threshold 3
Threshold 2
Threshold 1
Test Conditions
-3dB FM detected signal
Note 4
Ripple signal : 100Hz, 0.5VPP
Note 5, Weighted CCIR 468-4
See Figure 21
VIN = 2VRMS, Attenuation = 0dB
No signal
No signal
V12 = VDC12 = 1.5V
VIN = 1VPP
High impedance controling circuit
Video : External - Audio : External
Video : Internal - Audio : Internal
Video : External - Audio : External
Video : Internal - Audio : External
Level linked to VCC
Level linked to VCC
Level linked to VCC
Min. Typ. Ma.
35
1.2
50 61
12 17
0.85 1.1 1.4
0.2 1
600 750 900
50 55
72 77
45 60 75
70 80
0.1 0.3
1.6 1.9 2.2
1.8
1.7 2 2.3
1.5
55
5.5 6 6.5
4
5
1
5
15
-0.5 0 +0.5
1.7 2 2.3
2.8
0.2 0.3 0.4
7.2
1.8
4.9
6.4
2.6
4.1
6.4 6.8 7.2
4.1 4.5 4.9
1.8 2.2 2.6
Notes :
4.
AMR
=
20
log
V1 5
(mVRMS)
VAM
(dB)
where
VAM
=
output
amplitude
in
AM
for
fM
=
1kHz
and
m
= 30%
5.
S
N
=
20
log
V15 (mVRMS)
VN (mVRMS)
(dB)
Unit
µV
kΩ
dB
dB
VRMS
%
Ω
dB
dB
kΩ
dB
%
V
V
V
V
dB
dB
V
µA
MHz
dB
V
V
V
V
V
V
V
V
V
V
4/10
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