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STV2237D 数据表(PDF) 49 Page - STMicroelectronics

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

STV2237D 数据表(HTML) 49 Page - STMicroelectronics

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STV223XD/224XC - I²C BUS SELECTION
49/76
6.4 OUTPUT SIGNALS (READ MODE)
OUTPUT SIGNALS (READ MODE)
1F
VOUT Inhibition
1X
X
X
X
X
X
X
X
X
X
0
0
X
X
0
1
VOUT normal operating.
VOUT inhibition (forced to high DC level control-
led by vertical position register).
Sound Level Status
Refresh
1X
X
X
X
X
X
X
X
X
X
0
0
0
1
X
X
0 = Sound level status continuously refreshed
1 = Sound level status refreshed only at the end
of vertical synchronization pulse
Not to be used
1
X
X
X
X
X
0
X
X
Luma Delay Shift
1X
X
X
X
X
X
X
X
0
1
0
0
X
X
X
X
Standard luma delay.
140 ns on luma delay.
AVL Time Constant
1X
X
X
X
X
X
0
1
X
X
0
0
X
X
X
X
0 = Slow Timer Constant
1 = Fast Time Constant
AVL On/Off
1X
X
X
X
0
1
X
X
X
X
0
0
X
X
X
X
0 = AVL Off
1 = AVL On
AM/FMOUT pin selec-
tion
20
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
X
X
X
X
0
0
0
0
X
X
X
X
X
X
X
X
Output of AM/FM demodulator.
Sound subcarriers selected.
Audio output muted.
Main audio switch output, either internal or exter-
nal audio depending on main audio switch selec-
tion.
reg04hex; d0 = 0: internal audio.
reg04hex; d0 = 1: external audio.
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
00
Power-on reset
1X
X
X
X
X
X
X
X
X
X
X
X
X
X
0
1
Normal mode.
Power down mode.
Field frequency
1X
X
X
X
X
X
X
X
X
X
X
X
0
1
X
X
50 Hz.
60 Hz.
Field lock status
1X
X
X
X
X
X
X
X
X
X
0
1
X
X
X
X
Not locked.
Locked.
Video identification
1X
X
X
X
X
X
X
X
0
1
X
X
X
X
X
X
No identification.
Video identification.
Standard status crystal se-
lection
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
XTAL1 (4.43 MHz).
XTAL2 (3.5X MHz).
XTAL3 (3.5X MHz).
XTAL1 (3.5X MHz).
Standard 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
PAL.
NTSC.
SECAM.
COLOR OFF.



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