TDA9875A Philips Semiconductors, TDA9875A Datasheet - Page 47

• Manufacturer Part Number: TDA9875A
• Description: Digital TV Sound Processor DTVSP
• Manufacturer: Philips Semiconductors

Philips Semiconductors
10.3.15 A
When any of these bits are set to logic 1, the corresponding pair of output channels will be muted. A bit set to logic 0
allows normal signal output.
There is a soft mute facility for the Main and Auxiliary output channels to provide click-free muting independent of the
volume control. This is switched on/off by bits MUTMAIN and MUTAUX.
Table 36 Subaddress 18 (note 1)
Note
1. The default setting at power-up is 1111 1111.
10.3.16 DAC
This register is used to define both the signal source to be entered into the DAC and the mode of the digital matrix for
signal selection. The DAC is used for signal output from digital sources at analog outputs.
The bits DACGAIN1 and DACGAIN2 can introduce some extra gain at the input to the DAC; DACGAIN1 adds 3 dB and
DACGAIN2 adds 6 dB of gain, respectively.
The two combinations of FM and NICAM apply to the (rare) condition that three different languages are being broadcast
in an FM + NICAM system. They allow for a two-out-of-three selection for external use, such as recording.
1999 Dec 20
Digital TV Sound Processor (DTVSP)
7 (MSB)
0 (LSB)
BIT
6
5
4
3
2
1
UDIO MUTE CONTROL REGISTER
OUTPUT SELECT REGISTER
MUTMAIN
MUTLINE
MUTDAC
MUTI
MUTI
MUTSC2
MUTSC1
MUTAUX
NAME
2
2
S2
S1
VALUE
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
mute I
normal I
mute I
normal I
mute internal DAC
normal internal DAC
mute line outputs
normal line outputs
mute SCART 2 outputs
normal SCART 2 outputs
mute SCART 1 outputs
normal SCART 1 outputs
mute Auxiliary outputs
normal Auxiliary outputs
mute Main outputs
normal Main outputs
2
2
S2 output
S1 output
2
2
S2 output
S1 output
47
DESCRIPTION
Product specification
TDA9875A