STV6412B 查看數據表（PDF） - STMicroelectronics

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STV6412B

Filtered Video Buffers for STB and DVD Devices

STMicroelectronics 

General information

Table 1. I/O pin description (continued)

Pin No.

Symbol

Description

63

VCC12

+12 V supply

64

BIN_VCR

Blue input from VCR SCART

Figure 2. Power supply configuration

STV6412B

STV6412B

STV6412B

VCC12 (63)

9 volt output

12V

VCCAO (31)

VCCA (24)

9V

VCCAO (31)

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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