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STV2237D 数据表(PDF) 45 Page - STMicroelectronics

部件名 STV2237D
功能描述  I2C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR
PDF  76 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV2237D 数据表(HTML) 45 Page - STMicroelectronics

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STV223XD/224XC - I²C BUS SELECTION
45/76
VIDEO CONTROLS
Reg.
Addr
(Hex)
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
07
Contrast control
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-24 dB gain (Min. contrast).
0 dB gain (Max. contrast).
Cut-off pulse inser-
tion
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = After internal frame blanking.
1 = After Vertical oversize blanking (a08d7 = 1).
Blue screen fea-
ture
10
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Blue screen OFF.
1 = Blue screen ON.
08
Saturation control
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-40 dB gain (Min. saturation).
+9 dB gain (Max. saturation).
Half contrast ena-
ble
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Disabled.
1 = Enabled.
Oversize blanking
enable
10
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Disabled.
1 = Enabled.
09
Brightness control
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-30% of B/W at Max. contrast.
+30% of B/W at Max. contrast.
RGB blanking
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Not active (normal operation).
1 = Active.
Cut-off blanking
10
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Enable: RGB output blanked when ICATH voltage
is far from internal cut-off reference (cut-off loop not
locked), during IC start-up.
1 = Disable: RGB output not blanked by cut-off loop.
0A
Red drive adjust-
ment (white point
R)
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
RGBext/YCrCb
Selection
20
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
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.
0B
Green drive adjust-
ment
(white point G)
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
Black stretch ena-
ble
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Black stretch disable.
1 = Black stretch enable.
Black Stretch
Reference Level
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = 0 IRE (no set-up).
1 = 7.5 IRE (NTSC set-up).
0C
Blue drive adjust-
ment
(white point B)
6X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
-6 dB gain (Min. drive).
0 dB gain (Max. drive).
Cut-off loop control
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Cut-off loop active.
1 = Cut-off loop frozen.
LSB (9th bit) Red
cut-off counter
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Red LSB = 0
Red LSB = 1



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