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STV2112B Datasheet(PDF) 5 Page - STMicroelectronics

Part # STV2112B
Description  BUS-CONTROLLED PAL/SECAM TV PROCESSOR
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV2112B Datasheet(HTML) 5 Page - STMicroelectronics

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I
2C BUS SPECIFICATION
General Comments
Slave Address : 8A (HEX) (1000101X)
WRITE MODE DATA FORMAT
Slave Address
Register Address
Data
1000 1010
(8A)
XXXS SSSS
(from 00 to 11HEX)
XXSS SSSS
(6 significant bits Max.)
The not used bits in data byte must be put to ”0”.
READ MODE DATA FORMAT
Slave Address
Data
1000 1011
(8B)
SSSS SSSS
(8 significant bits)
MSB on the left, LSB on the Right.
MSB
LSB
XX
X
X
XXX
X
X : not significant bit - S : significant bit
Input Signals (Write Mode)
VIDEO
Address
Dec (HEX)
Description
Data
(Bits)
Comments
0 (00)
Contrast
5
XXX0 0000 = -20dB
XXX1 1111 = 0dB
0 (00)
External Fast Blanking Enable
1
XXSX XXXX
0 = RGBext insertion enable
1 = RGBext insertion disable
1 (01)
Saturation
6
XX00 0000 = -44dB
XX11 1111 = +6dB
2 (02)
Brightness
5
XXX0 0000 = -20%
XXX1 1111 = +20%
2 (02)
RGB Outputs Blanking
1
XXSX XXXX
0 = Normal mode
1 = Blanking active
3 (03)
Red Drive Adjust (white point red adjust)
6
XX00 0000 = -6dB
XX11 1111 = 0dB
4 (04)
Red Cut-off Adjust
6
XX00 0000 = +150mV
XX11 1111 = -150mV
5 (05)
Green Drive Adjust (white point green adjust)
6
XX00 0000 = -6dB
XX11 1111 = 0dB
6 (06)
Green Cut-off Adjust
6
XX00 0000 = +150mV
XX11 1111 = -150mV
7 (07)
Blue Drive Adjust (white point blue adjust)
6
XX00 0000 = -6dB
XX11 1111 = 0dB
8 (08)
Sharpness
3
XXXX X000 = Peaking Min.
XXXX X111 = Peaking Max.
STV2112B
5/24


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