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STV2248 数据表(PDF) 53 Page - STMicroelectronics

部件名 STV2248
功能描述  I²C bus-controlled multistandard single chip TV processor
PDF  86 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV2248 数据表(HTML) 53 Page - STMicroelectronics

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Obsolete
Product(s)
- Obsolete
Product(s)
STV224X, STV228X, STV223X - I²C BUS SELECTION
53/86
6.3.9 Miscellaneous
17
Vertical Amplitude
6
X
X
X
X
0
1
0
1
0
1
0
1
0
1
0
1
1.5 V on VAMP Pin.
6.0 V on VAMP Pin.
50/60Hz Selection
2
0
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
Auto (50 Hz when no ident.).
60 Hz.
50 Hz.
Auto (60 Hz when no ident.).
18
Vertical Position
4X
X
X
X
X
X
X
X
0
1
0
1
0
1
0
1
4 V high level on VERT Pin.
6 V high level on VERT Pin.
PLL1 Time Constant
2X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Auto time constant selection.
Short time constant.
Long time constant.
Very long time constant.
Horizontal
Synchronization
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = PLL1 active.
1 = PLL1 not active (horiz. free running mode).
Vertical
Synchronization
10
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = Vertical synchronization active.
1 = Vertical free running mode.
19
Vertical Output Low
Level Control
1X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
0 = 0.1 V low level on VERT Pin.
1 = 2 V low level on VERT Pin.
Frame Blanking
1X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
0 = Adapted to standard.
1 = Long blanking (50 Hz blanking) both in 50 Hz
and 60 Hz modes
Noise Detector
Threshold
2X
X
X
X
X
X
X
X
0
1
0
1
X
X
X
X
Low threshold.
High threshold.
Not to be used
1
X
X
0
0
XXXX
Wide Line Blanking
1
X
X
X
X
0
1
X
X
X
X
X
X
X
X
X
X
0 = Standard Line Blanking
1 = Wide Line Blanking
Copy Protection Mode
1X
X
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0 = Normal PLL1 operating mode.
1 = Copy Protection Mode.
AV Mode Time
Constant
10
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
0 = PLL1 short time constant during all frames.
1 = PLL1 long time constant during vertical blank-
ing, short time constant for the rest of the field.
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
1A
Manual Cut-off
Register Red
8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Low DC at RGB output.
High DC at RGB output.
1B
Manual Cut-off
Register Green
8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Low DC at RGB output.
High DC at RGB output.
1C
Manual Cut-off
Register Blue
8
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Low DC at RGB output.
High DC at RGB output.
1D
CVBS1 Out selection at
pin 29 SDIP56
8
0
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
CVBSOUT1 selected at pin 29 SDIP56.
Default value, set to 0h when CVBSOUT1 not
used.
1E
Not To Be Used
7
0
0
0
X
0
0
0
0
SIF AGC time
constant (positive mod-
ulation)
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
Automatic SIFAGC Time constant control.
Forced Long time constant.



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