TDA9875 Philips Semiconductors, TDA9875 Datasheet - Page 39

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

Philips Semiconductors
Table 25 De-emphasis
Table 26 Description of bits ADEEM1 and ADEEM2 (note 1)
Note
1. The FM de-emphasis gain is 0 dB at 40 Hz.
10.3.8
10.3.8.1
This register is used to select the proper dematrixing characteristics as appropriate for the standard of the received
carrier and the related sound mode identification. For the dematrixing, it is assumed that the output from sound carrier 1
is on channel L input.
10.3.8.2
Table 27 Subaddress 11 (notes 1 and 2)
Notes
1. X = don’t care.
2. The default setting at power-up is 00000000.
Table 28 Description of Subaddress 11 (bits B2 to B0)
1998 Feb 13
B6 and B2
ADEEM1,
Digital TV Sound Processor (DTVSP)
ADEEM2
NAME
MSB
B2
B7
X
0
0
0
0
1
0
0
0
0
1
1
FM
Description
Definition
MATRIX REGISTER
HIGH/LOW
B5 and B1
HIGH
LOW
B1
B6
X
0
0
1
1
0
0
0
1
1
0
0
Activates the adaptive de-emphasis function, which is required for certain satellite
FM channels. The standard FM de-emphasis must then be set to 75 s.
The adaptive de-emphasis is off.
B4 and B0
B0
B5
X
0
1
0
1
0
0
1
0
1
0
1
50 s (Europe)
60 s
75 s (M standard)
J17
off
2L input
L input
------------------------------------------ -
B4
X
L OUTPUT
R input
R input
L input
L input
+
2
R input
39
R input
B3
X
FUNCTION
L input R input
------------------------------------------ -
DE-EMPHASIS
R OUTPUT
R input
R input
R input
L input
L input
B2
–
2
see Table 28
Preliminary specification
B1
stereo Europe
dual swapped
stereo Korea
TDA9875
mono 1
mono 2
MODE
dual
LSB
B0