參數(shù)資料
型號: TDA9847T-T
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDSO24
文件頁數(shù): 7/28頁
文件大?。?/td> 146K
代理商: TDA9847T-T
1995 May 23
15
Philips Semiconductors
Preliminary specication
TV and VTR stereo/dual sound processor
TDA9847
Table 2
Control input Port matrix to select AF inputs and AF outputs (SCART channel)
Notes
1. The combination 1000 is not allowed.
2. The previous state is unchanged.
MODE
INPUT SIGNAL
OUTPUT SIGNAL
CONTROL INPUT
PORT(1)
ST/DS/M
SCART
MAIN
SCART
Vi1
9
Vi2
10
Vi3
11
Vi4
12
Vo1
14
Vo2
13
Vo3
16
Vo4
15
C4
3
C3
24
C2
2
C1
1
Sound mute
note 2
no signal
1
0
Mono
M
note 2
M
1
0
1
M
M
1010
AM
AM
1
0
1
Stereo
ST
S
R
note 2
1001
SR
1010
SR
1011
Dual
DS
A
B
note 2
A
B
1
0
1
AB
A
1010
AB
B
1011
External
C
D
note 2
C
D
1
0
1
CD
CC
1
0
CD
DD
1
Table 3
Explanation of Tables 1 and 2
SIGNAL
DESCRIPTION
R
right
L
left
S
A and B
dual sound A/B
C and D
external sound source (SCART)
AM
AM sound (standard L)
M
mono sound
DS
dual sound
ST
stereo sound
LR
+
()
2
--------------------
Table 4
Conversion logic truth table for the C4 control
line (see Fig.11)
MICROPROCESSOR
OUTPUT
CONTROL PORTS
TDA9847
C41
C42
C4
C4-level
001
≥3.2 V
1
0
3-state
1.8
±0.25 V
110
≤0.45 V
0
1
not allowed
undened
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