TDA9875 Philips Semiconductors, TDA9875 Datasheet - Page 46

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

Philips Semiconductors
10.3.16 DAC
10.3.16.1 Description
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 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.
10.3.16.2 Definition
Table 37 Subaddress 19 (note 1)
Notes
1. The default setting at power-up is 00000000.
2. See Table 40.
Table 38 Signal source left and right
Table 39 Bits B6 to B4 (note 1)
Note
1. X = don’t care.
1998 Feb 13
DACGAIN2
Digital TV Sound Processor (DTVSP)
MSB
B2
B6
0
0
0
0
1
1
1
1
0
0
0
0
1
B7
(2)
OUTPUT SELECT REGISTER
B1
B5
X
0
0
1
1
0
0
1
1
0
0
1
1
B6
see Table 39
B0
B4
B5
0
1
X
0
1
0
1
0
1
0
1
0
1
B4
L OUTPUT
46
NICAM left
FM mono
FM mono
ADC left
I
I
AVL left
R input
R input
FM left
2
2
L input
L input
DACGAIN1
LEFT
L
------------- -
S1 left
S2 left
+
2
R
B3
(2)
SIGNAL SOURCE
B2
see Table 38
NICAM right
Preliminary specification
R OUTPUT
NICAM M1
NICAM M2
B1
ADC right
I
I
AVL right
FM right
2
2
R input
R input
RIGHT
L input
L input
S1 right
S2 right
L
------------- -
+
2
R
TDA9875
LSB
B0