TDA9875A Philips Semiconductors, TDA9875A Datasheet - Page 82

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

Philips Semiconductors
10.4.2
The TDA9875A does not support the Extended Control Modes. Therefore, the program of the first sound carrier
(i.e. FM mono or AM) is selected for reproduction in case bit C3 is set to logic 1, independent of bit AMUTE in the NICAM
configuration register being set or not.
When a NICAM transmitter is switched off, the device will lose synchronization. In this situation the program of the first
sound carrier is selected for reproduction, independent of bit AMUTE being set or not.
Table 91 Subaddress 1
10.4.3
Bits B7 to B0 contain the number of errors occurring in the previous 128 ms period. The register is updated every 128 ms.
Table 92 Subaddress 2
1999 Dec 20
Digital TV Sound Processor (DTVSP)
7 (MSB)
7 (MSB)
0 (LSB)
0 (LSB)
BIT
BIT
6
5
4
3
2
1
6
5
4
3
2
1
NICAM
NICAN
ERROR COUNT REGISTER
STATUS REGISTER
NAME
NAME
S/MB
D/SB
OSB
CFC
C4
C3
C2
C1
B7
B6
B5
B4
B3
B2
B1
B0
VALUE
VALUE
1
0
1
0
1
0
1
0
application control bits (C1 to C4 in the NICAM transmission)
indication that the device has both frame and C0 (16 frame) synchronization
the audio output from the NICAM part should be digital silence
indication of a configuration change at the 16 frame (C0) boundary
no configuration change
indication of NICAM stereo mode
no NICAM stereo mode
indication NICAM dual mono mode
no NICAM dual mono mode
number of errors
82
DESCRIPTION
DESCRIPTION
Product specification
TDA9875A