STV0056AF View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STV0056AF' PDF : 27 Pages View PDF
STV0056AF
PIN INTERNAL CIRCUITRY
S1 VID RTN, S2 VID RTN, S3 VID RTN,
CLAMP IN
50µA source is active only when VIDIN < 2.7V.
Figure 1
50µA
VDD 9V
Pins 60 - 4
61 - 6
S1 VID RTN
S2 VID RTN
S3 VID RTN
CLAMP IN
10kΩ
1µA
VDD 5V
GND 0V
S3 VID OUT
I black level is I2C programmablefrom source 16µA
to sink 33µA equivalent to an offset voltage of
-150mV to + 300mV. The 60Ω collector resistor is
for short cct. protection.
Figure 2
60Ω
VCC 12V
VID MUX
4
2.3mA
GND 0V
63 S3 VID OUT
10kΩ
25kΩ
VREF 2.4V
16.7kΩ I Black Level
GND 0V
S1 VID OUT, S2 VID OUT
Same as above but with no black level adjustment.
Figure 3
60Ω
VCC 12V
VID MUX
4
2.3mA
GND 0V
10kΩ
20kΩ
Pins 64 - 2
S1 VID OUT
S2 VID OUT
VREF 2.4V
20kΩ
14/27
GND 0V
UNCL DEEM
Same as above but with no black level adjustment
and slightly different gain.
Figure 4
60Ω
VCC 12V
4
8 UNCL DEEM
2.3mA
IN
GND 0V
25kΩ
VREF 2.4V
16.7kΩ
GND 0V
VIDEEM1
Ron of the transistor gate is ≈10kΩ.
Figure 5
6µ/2µ
10µ/2µ
VIDEEM1 12
125µA
VIDEEM2 / 22kHz
Ron of the transistor gate is ≈10kΩ.
Figure 6
6µ/2µ
10µ/2µ
VIDEEM2/22kHz 9
125µA
VDD 5V
100µ/2µ
60µ/2µ
22kHz
VID IN
Figure 7
VREF 2.4V
B-BANDIN 16
6.5kΩ
0.5pF
GND 0V
85µA
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