tda9874h NXP Semiconductors, tda9874h Datasheet - Page 20

• Manufacturer Part Number: tda9874h
• Description: Digital Tv Sound Demodulator/decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
7.3.3
This register is used to define the signal source, the level of which is to be monitored, and the signal channel. Data can
be monitored before or behind the DC filter at the FM/AM demodulator outputs. The last available data sample can be
read out in the I
Phase means the differentiated phase output of the FM demodulator and is provided, when the demodulator operates in
FM mode, while magnitude is supplied in AM mode.
The default setting at power-up is 0000 0000.
Table 14 Monitor select register (subaddress 2)
Table 15 Description of the monitor select register bits
Table 16 Signal channel selection
Table 17 Signal source selection
2000 Jun 26
Digital TV sound demodulator/decoder
MCSM1
MSS1
BIT
7
7
6
5
4
3
2
1
0
0
0
1
0
0
1
1
M
ONITOR SELECT REGISTER
2
C-bus slave transmitter mode (see Section 7.4.5).
SYMBOL
MCSM1
MCSM0
MCSM0
MSS1
MSS0
MSS0
6
0
1
0
0
1
0
1
these bits are not used and should be set to logic 0
Signal channel select: the state of these bits determine which signal channel is selected
(see Table 16).
this bit is not used and should be set to logic 0
Signal source select: the state of these bits determine which signal source is selected
(see Table 17).
channel 1
channel 2
DC output of FM/AM demodulator
magnitude/phase output of FM/AM demodulator
FM/AM path output
NICAM path output
channel 1
---------------------------------------------------------- -
5
+
2
channel 2
MCSM1
4
20
MCSM0
SIGNAL CHANNEL
SIGNAL SOURCE
3
DESCRIPTION
2
MSS1
1
Product specification
TDA9874H
MSS0
0