STV6414A 查看數據表（PDF） - STMicroelectronics

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STV6414A

Audio/video switch matrix

STMicroelectronics 

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Table 2. I/O pin description (continued)

Pin No. Name

Function

63

VCC12

+12 V supply

64

BIN_VCR

Blue input from VCR SCART

Figure 2. Power supply configuration

STV6414A

STV6414A

STV6414A

63 VCC12

9 volt output

12V

31 VCCAO

VCCA 24

9V

31 VCCAO

VCCA 24

9 volt input

Audio ground

Audio ground

In applications where a 12 volt supply from slow blanking is used to

derive the internal audio 9 Volt supply voltage, the VCCAO pin must be

connected to the 12 volt supply as shown in the example. The VCCA

pin will show the regulated 9 volt audio supply voltage which must be

decoupled by capacitors.

In applications having a dedicated audio supply voltage, the VCCAO

pin must be connected together with the VCCA pin to the audio supply

as shown in the example. The VCCA pin acts as power supply input

for the internal audio block.

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