STV2247H View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
STV2247H Datasheet PDF : 86 Pages
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STV224XH/228XH/223XH - I²C BUS SELECTION
Reg.
Addr
(Hex)
Description
Data
Bits
d7 d6 d5 d4 d3 d2 d1 d0
Comments
0A Red Drive Adjust
(White Point R)
6 X X 0 0 0 0 0 0 -6 dB gain (Min. drive).
X X 1 1 1 1 1 1 0 dB gain (Max. drive).
RGBext/YCrCb
Selection
2 0 0 X X X X X X RGB ext. insertion enable controlled by FBext input
pin.
0 1 X X X X X X RGB ext. insertion disable, FBext control disable.
1 0 X X X X X X RGB ext. insertion forced (FBext not active).
1 1 X X X X X X YCrCb insertion forced.
if WR0F d5 = 0 : Y on Gext (Luminance input) and
CVBSin (for synchro).
if WR0F d5 = 1 : Y on CVBSin (for luminance and
synchro), Cr on Rext, trap and luma delay disabled.
0B
Green drive adjust-
ment
6
(white point G)
X X 0 0 0 0 0 0 -6 dB gain (Min. drive).
X X 1 1 1 1 1 1 0 dB gain (Max. drive).
Black stretch ena- 1 X 0 X X X X X X 0 = Black stretch disable.
ble
X 1 X X X X X X 1 = Black stretch enable.
Black Stretch
Reference Level
1
0 X X X X X X X 0 = 0 IRE (no set-up).
1 X X X X X X X 1 = 7.5 IRE (NTSC set-up).
0C Blue drive adjust-
ment
(white point B)
6 X X 0 0 0 0 0 0 -6 dB gain (Min. drive).
X X 1 1 1 1 1 1 0 dB gain (Max. drive).
Cut-off loop control 1
X 0 X X X X X X 0 = Cut-off loop active.
X 1 X X X X X X 1 = Cut-off loop frozen.
LSB (9th bit) Red
cut-off counter
1
0 X X X X X X X Red LSB = 0
1 X X X X X X X Red LSB = 1
0D
Red cut-off adjust-
ment (Black point
6
R)
X X 0 0 0 0 0 0 -150 mV.
X X 1 1 1 1 1 1 +150 mV.
2
Manual Cut-off Se-
lection
0 0 X X X X X X Automatic Cut-off application, data = 00hex in
registers 1A,1B, 1C.
1 1 X X X X X X Manual cut-off application DC at R,G,B output are
adjusted thanks registers 1A, 1B, 1C.
0 1 X X X X X X Not allowed.
1 0 X X X X X X Not allowed.
0E Green cut-off ad-
justment (Black
point G)
6 X X 0 0 0 0 0 0 -150 mV.
X X 1 1 1 1 1 1 +150 mV.
Not to be used
1 X0XXXXXX
LSB (9th bit) Green
cut-off counter
1
0 X X X X X X X Green LSB = 0
1 X X X X X X X Green LSB = 1
0F Peaking Control
4 X X X X 0 0 0 0 0 dB at center Freq. Min. peaking.
X X X X 1 1 1 1 + 6dB at center Freq.Max. peaking.
Coring on sharp-
ness
1 X X X 0 X X X X 0 = Coring off.
X X X 1 X X X X 1 = Coring on.
Chroma Trap and
Luma Delay Selec-
1
tion
X X 0 X X X X X 0 = Trap and Luma Delay Enabled.
X X 1 X X X X X 1 = Trap and Luma Delay Disabled.
CVBS2 ON/OFF
1 X 0 X X X X X X 0 = CVBS2 output Enabled.
X 1 X X X X X X 1 = CVBS2 output Disabled.
White Insertion
1 0 X X X X X X X 0 = White insertion not active.
1 X X X X X X X 1 = White insertion enable during HOUT soft mode.
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