STV6688A Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
STV6688A Datasheet PDF : 12 Pages
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Functional Description
1 Functional Description
STV6688
Pin
Symbol
1 Y/CVBS_IN1
2 C_IN1
3 VCC_V
4 Y/CVBS_IN2
5 C_IN2
6 GND_V
7 Y/CVBS_IN3
8 C_IN3
9 VDD
10 SDA
Table 1: Pin List
Description
Y or CVBS Signal of Ext. Input 1
C Signal of Ext. Input 1
Video Switch Power Supply
Y or CVBS Signal of Ext. Input 2
C Signal of Ext. Input 2
Video Switch Ground
Y or CVBS Signal of Ext. Input 3
C Signal of Ext. Input 3
Digital Parts Power Supply
Serial Data Line Input
Pin
Symbol
11 SCL
12 GND
13 C_OUT
14 Y/CVBS_OUT
15 GND_B
16 CVBS_OUT
17 VCC B
18 C_IN_TV
19 Y/CVBS_IN_TV
20 DEC
Description
Serial Clock Line Input
Digital Parts Ground
C Signal Output
Y/CVBS Output
Buffer Ground
Y and C Adder Output
Buffer Power Supply
C Signal of TV Input
Y or CVBS Signal of TV Input
Decoupling
Figure 1: STV6688 Block Diagram
Y/CVBS_IN TV 19
Y/CVBS_IN1 1
Y/CVBS_IN2 4
Y/CVBS_IN3 7
C_IN TV 18
C_IN1 2
C_IN2 5
C_IN3 8
Clamp
Clamp
Clamp
Clamp
VDD 9
12
GND
I²C Bus Decoder
10
SDA
11
SCL
0dB
14 Y/CVBS_OUT
+
6dB
Buffer
16 CVBS_OUT
0dB
Mute
VREF
15
6
GND B
GND V
13 C_OUT
17 VCC B
3 VCC V
20 DEC
Buffer
Power
Supply
Video
Power
Supply
2/12
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