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STV2236 Datenblatt(PDF) 51 Page - STMicroelectronics

Teilenummer STV2236
Bauteilbeschribung  I짼C BUS-CONTROLLED MULTISTANDARD SINGLE CHIP TV PROCESSOR
PDF  86 Pages
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Hersteller  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STV2236 Datenblatt(HTML) 51 Page - STMicroelectronics

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STV224XH/228XH/223XH - I²C BUS SELECTION
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6.3.7 Chroma Controls
10
APR Enable
1X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0 = APR disable.
1 = APR enable.
Note: WR10 d0 to be set to 1 when RGB peak limi-
tation is used
APR Threshold
4
X
X
X
X
X
X
0
1
0
1
0
1
0
1
X
X
50 IRE.
100 IRE.
RGB OSD Con-
trast Selection
1X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Contrast control disable.
1 = Contrast control enable.
CRT/LCD Display
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = RGB output blanking active, CRT Display
1 = RGB output blanking replaced by black level,
LCD Display
White Insertion
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
White Insertion controlled by WR0Fd7
White forced at RGB Output
Reg.
Addr
(Hex)
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
Reg.
Addr.
(Hex)
Description
Bits
Data
Comments
d7 d6 d5 d4 d3 d2 d1 d0
11
Bell Filter Adjust
5X
X
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0kHz.
+100 kHz.
PAL/NTSC
Demodulation Gain
1X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = 0 dB gain (nominal).
1 = +6 dB gain.
NTSC Matrix
1
X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = 90° matrix selection.
1 = 104° matrix selection (in NTSC only).
ACC Overload Disable
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = ACC overload active.
1 = ACC overload disable.
12
Bandpass adjust
4X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
f = fosc.
f = 1.1*fosc.
Chroma reference out-
put
1X
X
X
X
X
X
0
1
X
X
X
X
X
X
X
X
0 = Chroma reference output OFF.
1 = Chroma reference output ON.
Chroma DL selection
1X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = ON.
1 = OFF.
Not to be used
2
0
0
X
X
X
X
X
X
13
Crystal Selection
2X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
XTAL1 (4.43/3.5XX MHz).
XTAL2 (3.5XX MHz).
XTAL3 (3.5XX MHz).
Not allowed.
Standard Selection
2X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
1
1
1
X
0
1
0
0
0
1
X
X
X
0
0
1
X
1
X
X
0
1
0
X
1
X
X
0
X
X
X
X
PAL.
NTSC.
SECAM (only with XTAL1).
Not allowed.
Not allowed.
AUTO mode.
Not allowed
Crystal Inhibition
2X
X
X
X
X
X
X
X
0
0
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
Two-crystal, P/S/N application.
Three-crystal, P/N application.
One-crystal, P/S/N 4.43 MHz application.
Two-crystal, P/N application.
Not to be used
2
0
0
X
X
X
X
X
X



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