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STV0056 数据表(PDF) 21 Page - STMicroelectronics

部件名 STV0056
功能描述  SATELLITE SOUND AND VIDEO PROCESSOR
PDF  27 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STV0056 数据表(HTML) 21 Page - STMicroelectronics

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CONTROL REGISTERS (continued)
Video Mux Truth Tables
Register 2 <0:2>
⇒ Scart 1 video output control
Register 3 <0:2>
⇒ Scart 2 video output control
Register 4 <0:2>
⇒ Scart 3 decoder output control
The truth table for the three scart outputs are the same.
Register 2/3/4
Video Output
Bit<2>
0
0
0
0
1
1
1
1
Bit<1>
0
0
1
1
0
0
1
1
Bit<0>
0
1
0
1
0
1
0
1
Baseband video
De-emphasized video
Normal video
Scart 3 return
Scart 2 return
Scart 1 return
Nothing selected
High Z or low power (default)
Register 4
Black Level Adjust on Scart 3
Bit <7>
0
1
0
1
Bit <6>
0
0
1
1
-150mV
0 (default)
+150mV
+300mV
Audio Mux Truth Tables
Register 2
Switch K1/Audio Source Selection for Volume Output
Bit <5>
0
1
0
1
Bit <4>
0
0
1
1
A
C
B
-
Volume Output
Audio deemphasis (K2 switch O/P)
Scart 2 return
Scart 3 return
High Z or low power (default)
Register 3
Switch K2/Audio Deemphasis
Bit <7>
0
1
0
1
Bit <6>
0
0
1
1
A
C
B
B
Audio Deemphasis
No deemphasis
J17
50
µs
75
µs (default)
Register 0
Switch K3 & K4
Bit <6>
0
1
X
X
Bit <5>
X
X
0
1
A
B
A
B
ANRS I/O Select
Noise reduction OFF
Noise reduction ON (default)
I/P = PLL
I/P = Scart 3 return
Register 3
Switch K5/Audio Source Selection for Scart 2
Bit <5>
0
1
0
1
Bit <4>
0
0
1
1
C
A
B
-
Aux Audio Output
PLL output
Scart 3 return
Audio deemphasis (K2 switch O/P)
High Z or low power state (default)
Register 4
Switch K6/Audio Source Selection for Scart 3
Bit <5>
0
1
0
1
Bit <4>
0
0
1
1
A
C
B
-
Audio Decoder Output
PLL output
Audio deemphasis (K2 switch O/P)
Scart 2 return
High Z or low power state (default)
STV0056AF
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