TDA9874AH/V2,557 NXP Semiconductors, TDA9874AH/V2,557 Datasheet - Page 26

• Manufacturer Part Number: TDA9874AH/V2,557
• Description: IC SOUND DEMOD/DECODE 44PQFP
• Manufacturer: NXP Semiconductors
• Type: Demodulatorr

Specifications of TDA9874AH/V2,557

• Applications: TV
• Mounting Type: Surface Mount
• Package / Case: 44-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935263704557; TDA9874AHB; TDA9874AHB

Philips Semiconductors
7.3.7
This register should not be used when applying ESP. The default setting after Power-on reset is 0000 0000.
Table 24 Demodulator configuration register (subaddress 9)
Table 25 Description of the demodulator configuration register bits
Table 26 Identification mode
Table 27 Channel 2 receive mode
2000 Aug 04
CH2MOD1
Digital TV sound demodulator/decoder
IDMOD1
IDMOD1
BIT
7
7
6
5
4
3
2
1
0
0
0
1
1
0
0
1
D
EMODULATOR CONFIGURATION REGISTER
CH1MODE
CH2MOD1
CH2MOD0
CH2MOD0
SYMBOL
FILTBW1
FILTBW0
IDMOD0
IDMOD1
IDMOD0
IDMOD0
IDAREA
6
0
1
0
1
0
1
0
Identification mode for FM sound: these bits define the integrator time of the
FM identification. A valid result may be expected after twice this time has expired, at the
latest. The longer the time, the more reliable the identification; see Table 26.
Application area for FM identification: if bit IDAREA = 1 it selects the FM identification
frequencies in accordance with the specification for Korea. If bit IDAREA = 0 the
frequencies for Europe are selected (B/G and D/K standard).
this bit selects the filter bandwidth in accordance with Table 28
Channel 2 receive mode: these bits control the hardware for the second sound carrier in
accordance with Table 27. The NICAM mode employs a wider bandwidth of the
decimation filters than the FM mode.
this bit selects the filter bandwidth in accordance with Table 28
Channel 1 receive mode: if bit CH1MODE = 1 it selects the hardware for the first sound
carrier to operate in AM mode. If bit CH1MODE = 0 the FM mode is assumed. This
applies to both terrestrial and satellite FM reception.
slow
medium
fast
off/reset, recommended during use of high deviation mode
FM
AM
NICAM
IDAREA
5
FILTBW1
4
26
CH2MOD1
IDENTIFICATION MODE
3
DESCRIPTION
CHANNEL 2
CH2MOD0
2
FILTBW0
1
Product specification
TDA9874A
CH1MODE
0