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STV0056AF 数据表(PDF) 14 Page - STMicroelectronics

部件名 STV0056AF
功能描述  SATELLITE SOUND AND VIDEO PROCESSOR
PDF  27 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV0056AF 数据表(HTML) 14 Page - STMicroelectronics

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50
µA
1
µA
10k
Ω
Pins 60 - 4
61 - 6
S1 VID RTN
S2 VID RTN
S3 VID RTN
CLAMP IN
V
DD 5V
GND 0V
V
DD 9V
Figure 1
2.3mA
GND 0V
4
V
CC 12V
VID MUX
10k
Ω
16.7k
Ω
GND 0V
I Black Level
60
Ω
S3 VID OUT
V
REF 2.4V
25k
Ω
63
Figure 2
2.3mA
GND 0V
4
V
CC 12V
VID MUX
10k
Ω
20k
Ω
GND 0V
60
Ω
Pins 64 - 2
S1 VID OUT
S2 VID OUT
V
REF 2.4V
20k
Ω
Figure 3
125
µA
6
µ/2µ
10
µ/2µ
VIDEEM1 12
Figure 5
125
µA
6
µ/2µ
10
µ/2µ
VIDEEM2/22kHz
V
DD 5V
100
µ/2µ
60
µ/2µ
22kHz
9
Figure 6
PIN INTERNAL CIRCUITRY
S1 VID RTN, S2 VID RTN, S3 VID RTN,
CLAMP IN
50
µA source is active only when VIDIN < 2.7V.
S3 VID OUT
I black level is I
2C programmablefromsource16µA
to sink 33
µA equivalent to an offset voltage of
-150mV to + 300mV. The 60
Ω collector resistor is
for short cct. protection.
S1 VID OUT, S2 VID OUT
Same as above but with no black level adjustment.
UNCL DEEM
Same as above but with no black level adjustment
and slightly different gain.
VIDEEM1
Ron of the transistor gate is
≈10kΩ.
VIDEEM2 / 22kHz
Ron of the transistor gate is
≈10kΩ.
2.3mA
GND 0V
4
V
CC 12V
IN
16.7k
Ω
GND 0V
60
Ω
UNCL DEEM
V
REF 2.4V
25k
Ω
8
Figure 4
V
REF 2.4V
B-BAND
IN
6.5k
Ω
85
µA
GND 0V
0.5pF
16
Figure 7
VID IN
STV0056AF
14/27



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