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STV0042 データシート(PDF) 12 Page - STMicroelectronics

部品番号 STV0042
部品情報  SATELLITE SOUND AND VIDEO PROCESSORS
PDF  24 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV0042 データシート(HTML) 12 Page - STMicroelectronics

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PIN INTERNAL CIRCUITRY
S2 VID RTN, CLAMP IN
50
µA source is active only when VIDIN < 2.7V.
50
µA
1
µA
10k
Ω
S2 VID RTN
CLAMP IN
V
DD 5V
GND 0V
1
1
V
DD 9V
Figure 1
S1 VID OUT, S2 VID OUT
Same as above but with no black level adjustment.
2.3mA
GND 0V
4
V
CC 12V
VID MUX
10k
Ω
20k
Ω
GND 0V
60
Ω
S1 VID OUT
S2 VID OUT
V
REF 2.4V
20k
Ω
Figure 3
UNCL DEEM
Same as above but with no black level adjustment
and slightly different gain.
2.3mA
GND 0V
4
V
CC 12V
IN
10k
Ω
16.7k
Ω
GND 0V
60
Ω
UNCL DEEM
V
REF 2.4V
25k
Ω
Figure 4
VIDEEM1
Ron of the transistor gate is
≈10kΩ.
1
125
µA
6
µ/2µ
10
µ/2µ
VIDEEM1
Figure 5
VIDEEM2 / 22kHz
Ron of the transistor gate is
≈10kΩ.
1
125
µA
6
µ/2µ
10
µ/2µ
VIDEEM2/22kHz
V
DD 5V
100
µ/2µ
60
µ/2µ
22kHz
Figure 6
VID IN
V
REF 2.4V
VID IN
6.5k
Ω
10k
Ω
85
µA
GND 0V
1
0.5pF
+
Figure 7
V
DD 9V
Audio
PK OUT
Peak Detector
5k
Ω
3.4V
Clamp
1
1
Figure 8
PK OUT
STV0042A
12/24



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