TDA9875 Philips Semiconductors, TDA9875 Datasheet - Page 48

• Manufacturer Part Number: TDA9875
• Description: Digital TV Sound Processor DTVSP
• Manufacturer: Philips Semiconductors

Philips Semiconductors
Table 44 Description of bit SC1GAIN (note 1)
Note
1. A possibility to copy from SCART 1 input to SCART 1 output is not implemented.
10.3.18 SCART 2
10.3.18.1 Description
This register is used to define both the signal source to be output at SCART 2 and the output channel selector mode.
10.3.18.2 Definition
Table 45 Subaddress 21 (notes 1 and 2)
Notes
1. X = don’t care.
2. The default setting at power-up is 00000000.
3. See Table 48.
Table 46 Signal source
Table 47 Bits B5 and B4
1998 Feb 13
SC1GAIN
Digital TV Sound Processor (DTVSP)
NAME
MSB
B2
B5
B7
X
0
0
0
1
0
0
1
1
SC2GAIN
HIGH/LOW
OUTPUT SELECT REGISTER
HIGH
LOW
B1
B4
B6
0
1
1
0
0
1
0
1
(3)
Activates the 3 dB gain stage at the SCART 1 output port. As any SCART input passes
a 3 dB attenuator, this gain stage can be used to compensate that attenuation, resulting
in a 0 dB insertion loss when copying from SCART 2 input to SCART 1 output.
However, that gain must be used with great care, as it will cause signal clipping at high
input levels.
The audio signal will be output unchanged (0 dB gain).
B0
B5
0
0
1
0
see Table 47
L OUTPUT
R input
R input
L input
L input
B4
48
B3
X
FUNCTION
SIGNAL SOURCE
SCART 1 input
external input
mono input
DAC input
B2
see Table 46
R OUTPUT
R input
R input
L input
L input
Preliminary specification
B1
TDA9875
LSB
B0