TDA9875AH Philips Semiconductors, TDA9875AH Datasheet - Page 46
TDA9875AH
Manufacturer Part Number
TDA9875AH
Description
Digital TV Sound Processor DTVSP
Manufacturer
Philips Semiconductors
Datasheet
1.TDA9875AH.pdf
(96 pages)
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Philips Semiconductors
10.3.13 NICAM
When the auto-mute function is enabled (bit AMUTE in the
NICAM configuration register) and the NICAM bit error
count is lower than the value contained in this register, the
NICAM signal is selected (again) for reproduction
(see Section 10.3.14).
Table 34 Subaddress 16 (notes 1 and 2)
Notes
1. The default setting at power-up is 0001 0100.
2. The lower bit error rate
10.3.14 NICAM
When the auto-mute function is enabled (bit AMUTE in the
NICAM configuration register) and the NICAM bit error
count is higher than the value contained in this register, the
signal of the first sound carrier (i.e. FM mono or AM sound)
or the external mono input (depending on bit AMSEL and
ADC output selection) is selected for reproduction.
The difference between upper and lower error limit
constitutes a hysteresis to avoid frequent switching
between NICAM and the program on the first sound
carrier.
1999 Dec 20
7 (MSB)
0 (LSB)
Digital TV Sound Processor (DTVSP)
BIT
limit
6
5
4
3
2
1
subaddress 16
NAME
B7
B6
B5
B4
B3
B2
B1
B0
LOWER ERROR LIMIT REGISTER
UPPER ERROR LIMIT REGISTER
VALUE
1.74
lower error limit value
10
DESCRIPTION
5
.
46
Table 35 Subaddress 17 (notes 1 and 2)
Notes
1. The default setting at power-up is 0101 0000.
2. The upper bit error rate
7 (MSB)
0 (LSB)
BIT
limit
6
5
4
3
2
1
subaddress 17
NAME
B7
B6
B5
B4
B3
B2
B1
B0
VALUE
1.74
upper error limit value
10
DESCRIPTION
Product specification
5
TDA9875A
.
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