STV2246H STMicroelectronics, STV2246H Datasheet - Page 50

• Manufacturer Part Number: STV2246H
• Manufacturer: STMicroelectronics

Specifications of STV2246H

• Lead Free Status / Rohs Status: Compliant

(Hex)
Addr
Reg.
0A
0B
0C
0D
0E
Red Drive Adjust
(White Point R)
RGBext/YCrCb
Selection
Green drive adjust-
ment
(white point G)
Black stretch ena-
ble
Black Stretch
Reference Level
Blue drive adjust-
ment
(white point B)
Cut-off loop control
LSB (9th bit) Red
cut-off counter
Red cut-off adjust-
ment (Black point
R)
Manual Cut-off Se-
lection
Green cut-off ad-
justment (Black
point G)
Not to be used
LSB (9th bit) Green
cut-off counter
Description
Bits
6
2
6
1
1
6
1
1
6
2
6
1
1
d7 d6 d5 d4 d3 d2 d1 d0
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
0
1
0
1
0
1
X
X
0
1
0
1
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
1
0
X
X
0
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
Data
STV224X, STV228X, STV223X - I²C BUS SELECTION
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
RGB ext. insertion enable controlled by FBext input
pin.
RGB ext. insertion disable, FBext control disable.
RGB ext. insertion forced (FBext not active).
YCrCb insertion forced.
if WR0F d5 = 0 : Y on Gext (luminance input) and
CVBSin (for synchro), Cr on Rext, Cb on Bext.
if WR0F d5 = 1 : Y on CVBSin (for luminance and
synchro), Cr on Rext, Cb on Bext, trap and luma de-
lay disabled.
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
0 = Black stretch disable.
1 = Black stretch enable.
0 = 0 IRE (no set-up).
1 = 7.5 IRE (NTSC set-up).
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
0 = Cut-off loop active.
1 = Cut-off loop frozen.
Red LSB = 0
Red LSB = 1
-150 mV.
+150 mV.
Automatic Cut-off application, data = 00hex in
registers 1A,1B, 1C.
Manual cut-off application DC at R,G,B output are
adjusted thanks registers 1A, 1B, 1C.
Not allowed.
Not allowed.
-150 mV.
+150 mV.
Green LSB = 0
Green LSB = 1
Comments
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