STV6412A datasheet(16/24 Pages) STMICROELECTRONICS

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STV6412A

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Table 18. RF & Miscellaneous Control

Table 19. Slow Blanking & Inputs Control

Reg.

Addr

(Hex)

Description

Bits

Data

Comments

R/C TV Output Selection

Red signal selected

Chroma signal selected

RF Output: Adder control

and chroma sub-carrier filter

selection

CVBS to RF output

Y + C to RF output

Filter not active

Filter active

C_Gate Output Control

High level

Low level

C_VCR Output Control

Tri-state mode (high impedance)

Active

Slow Blanking Mode

Normal Mode

SLB TV is driven by SLB VCR

IT Enable

No interrupt flag

IT enable

Reg.

Addr

(Hex)

Description

Bits

Data

Comments

Encoder R/Csub Clamp

Bottom level clamp

Average level clamp

VCR R/Csub Clamp

Bottom level clamp

Average level clamp

Encoder Input Level Adjust-

ment

0 dB for normal audio inputs

+6 dB for weak audio inputs

+9 dB for weak audio inputs

Slow Blanking TV SCART

Input mode only

Output < 2 V

Output 16/9 format

Output 4/3 format

Slow Blanking VCR SCART

Input mode only

Output < 2 V

Output 16/9 format

Output 4/3 format

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