tda9870ah NXP Semiconductors, tda9870ah Datasheet - Page 46

• Manufacturer Part Number: tda9870ah
• Description: Digital Tv Sound Processor Dtvsp
• Manufacturer: NXP Semiconductors

Philips Semiconductors
10.3.17 SCART 1
This register is used to define both the signal source to be output at SCART 1 and the output channel selector mode.
Table 36 Subaddress 20 (note 1)
Note
1. The default setting at power-up is 00000001.
Table 37 Output channel selection
Table 38 Signal source selection
1999 Dec 20
7 (MSB)
0 (LSB)
Digital TV Sound Processor (DTVSP)
BIT
B2
6
5
4
3
2
1
0
0
0
0
1
B5
0
0
1
1
SC1GAIN
NAME
B7
B5
B4
B3
B2
B1
B0
B1
0
0
1
1
0
OUTPUT SELECT REGISTER
B4
VALUE
0
1
0
1
B0
0
1
0
0
0
1
0
1
0
default value
Activates the 3 dB gain stage at the SCART 1 output buffers. 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 output will be unchanged (0 dB gain)
output channel selection (see Table 37)
default value
signal source selection (see Table 38)
L OUTPUT
R input
R input
L input
L input
46
SIGNAL SOURCE
DESCRIPTION
SCART 1 input
SCART 2 input
external input
mono input
DAC input
R OUTPUT
R input
R input
L input
L input
Product specification
TDA9870A