tda9845t NXP Semiconductors, tda9845t Datasheet - Page 12

• Manufacturer Part Number: tda9845t
• Description: Tv And Vtr Stereo/dual Sound Processor With Digital Identification
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Table 1 Control input port matrix to select AF inputs and AF outputs
Notes
1. The combination 111 is not allowed.
2. In mute mode the content of the 117 Hz/274 Hz integrator will be reset. The LEDs are switched OFF.
3. The LED show the identification status.
4. In external mode, in the combination 110 only the LEDs are switched OFF.
Table 2 Explanation of Table 1
1995 Mar 20
INPUT/OUTPUT
Mute; note 2
Sound mute
Mono
Stereo
Dual
External; note 4
R
L
S
A and B
C
AM
M
DS
ST
TV and VTR stereo/dual sound processor
with digital identification
SIGNAL
M
ST
DS
MODE
right
left
dual sound A/B
external sound source
AM sound (standard L)
mono sound
dual sound
stereo sound
--------------------
L
+
2
R
PIN 8
M
M
AM
S
S
S
A
A
A
V
ST/DS/M
DESCRIPTION
i 1
INPUT SIGNAL
PIN 9
R
R
R
B
B
B
V
i 2
C
C
PIN 10
EXT
V
i 3
M
M
AM
L
S
S
A
A
B
C
C
OUTPUT SIGNAL
PIN 12
V
o 1
12
no signal
no signal
MAIN
M
M
AM
R
S
S
B
A
B
C
C
PIN 11
V
o 2
PIN 20
0
1
0
0
0
0
0
0
0
0
0
1
1
CONTROL INPUT
C3
PORT
PIN 2
0
0
0
1
1
0
1
1
0
1
1
0
1
C2
(1)
PIN 1
0
0
1
0
1
1
0
1
1
0
1
1
0
C1
Preliminary specification
OFF
note 3
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
ON
note 3
OFF
PIN 14
DUAL
TDA9845
LED
STEREO
OFF
note 3
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
note 3
OFF
PIN 15