STV6413 데이터 시트보기 (PDF) - STMicroelectronics

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STV6413

Audio/Video Switch Matrix

STMicroelectronics 

STV6413

I²C Bus Selection

Table 8: Slow Blanking & Inputs Control

Reg.

Add.

Description

Encoder R/Csub Clamp

VCR R/Csub Clamp

Encoder Input Level

Adjustment

05h

Slow Blanking TV SCART

Slow Blanking VCR SCART

Data

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

1

X X X X X X X 0 Bottom level clamp

X X X X X X X 1 Average level clamp

1

X X X X X X 0 X Bottom level clamp

X X X X X X 1 X Average level clamp

X X X X 0 0 X X 0 dB for normal audio inputs

2

X X X X 0 1 X X +6 dB for weak audio inputs

X X X X 1 0 X X +9 dB for weak audio inputs

X X 0 0 X X X X Input mode only

2

X X 0 1 X X X X Output < 2 V

X X 1 0 X X X X Output 16/9 format

X X 1 1 X X X X Output 4/3 format

0 0 X X X X X X Input mode only

2

0 1 X X X X X X Output < 2 V

1 0 X X X X X X Output 16/9 format

1 1 X X X X X X Output 4/3 format

Reg.

Add.

Description

ENC Inputs

VCR Inputs

TV Inputs

06h VCR Outputs

CINCH Outputs

TV Outputs

Full Stop

Table 9: Standby Modes

Data

Bits

d7 d6 d5 d4 d3 d2 d1 d0

Comments

1

1 X X X 1 X X 0 Inputs active

1 X X X 1 X X 1 Inputs disabled

1

1 X X X 1 X 0 X Inputs active

1 X X X 1 X 1 X Inputs disabled

1

1 X X X 1 0 X X Inputs active

1 X X X 1 1 X X Inputs disabled

1

1 X X 0 1 X X X Audio & Video Outputs ON

1 X X 1 1 X X X Audio & Video Outputs OFF

1

1 X 0 X 1 X X X Audio & Video Outputs ON

1 X 1 X 1 X X X Audio & Video Outputs OFF

1

1 0 X X 1 X X X Audio & Video Outputs ON

1 1 X X 1 X X X Audio & Video Outputs OFF

Only I²C bus and slow

1 1 1 1 1 1 1 1 blanking detection parts are

supplied.

19/28

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