tda9874aps NXP Semiconductors, tda9874aps Datasheet - Page 42

• Manufacturer Part Number: tda9874aps
• Description: Digital Tv Sound Demodulator/decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
7.3.23
This register is used to simplify the setting of different TV
sound standards via the I
will overwrite the contents of registers 3 to 10 with the
settings needed to demodulate one of the standards
shown in Table 68. After power-up, the default setting has
no effect on the settings of registers 3 to 10. Old values of
registers 3 to 10 are not stored. Demodulators filter the
bandwidth and identification time constants are also set
independently from the chosen standard selected in this
register.
This means for I
registers 3 to 10 should not be overwritten during a
refresh.
Table 67 Easy standard programming register (subaddress 255)
Table 68 Available standards for easy standard programming
2000 Aug 04
Digital TV sound demodulator/decoder
FILTBW1
EPB3
7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
E
ASY
S
TANDARD
2
C-bus refreshing: using the ESP option,
FILTBW0
EPB2
6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
2
P
C-bus. Writing to this register
ROGRAMMING
IDMOD1
EPB1
5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
(ESP)
REGISTER
IDMOD0
EPB0
4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
42
If ESP is not used, the ESP register should not be
accessed in the refresh routine.
Demodulators filter bandwidth and identification time
constants are also set independently in this register.
The default setting after Power-on reset is 0000 0000.
For a description of the bits IDMOD0 and IDMOD1
(FM identification mode), FILTBW0 and FILTBW1
(demodulator filter bandwidth) refer to Section 7.3.7.
Bits IDMOD0 and IDMOD1 (FM identification mode),
FILTBW0 and FILTBW1 (demodulator filter bandwidth) are
identical in registers 255 and 9.
EPB3
3
NUMBER
10
11
12
13
14
15
0
1
2
3
4
5
6
7
8
9
EPB2
2
STANDARD
EPB1
Astra satellite stereo
(7.02/7.20 MHz)
1
A2, M (Korea)
NICAM, B/G
NICAM, D/K
Product specification
A2, D/K (1)
A2, D/K (2)
A2, D/K (3)
NICAM, L
NICAM, I
reserved
reserved
reserved
reserved
reserved
reserved
TDA9874A
A2, B/G
NAME
EPB0
0