tda8296 NXP Semiconductors, tda8296 Datasheet - Page 38
tda8296
Manufacturer Part Number
tda8296
Description
Tda8296 Digital Global Standard Low If Demodulator For Analog Tv And Fm Radio
Manufacturer
NXP Semiconductors
Datasheet
1.TDA8296.pdf
(87 pages)
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Part Number:
TDA8296
Manufacturer:
NXP/恩智浦
Quantity:
20 000
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NXP Semiconductors
Table 35.
Legend: * = default value.
[1]
Table 36.
Legend: * = default value.
TDA8296
Product data sheet
Bit
2
1 and 0 SSIF_SND[1:0]
Bit
7 to 5 -
4 to 0 SND_LVL[4:0] R/W
Before activating mono sound, the TV standard needs to be set via easy programming
Symbol
Symbol
AUTO_MUTE
SOUNDSET_2 register (address 21h) bit description
SOUND_LEVEL register (address 22h) bit description
Access Value
R/W
Access Value
R/W
R/W
000*
0 0001
0 0010
0 0100
0 1000*
1 0000
X XXXX
0*
1
X
01
10*
Digital global standard low IF demodulator for analog TV and FM radio
All information provided in this document is subject to legal disclaimers.
Description
not used
mono sound output level
−12 dB nominal; implemented for flexibility reasons. With this setting, the
adaptation to different standard requirements can be done.
−6 dB nominal; implemented for flexibility reasons. With this setting, the
adaptation to different standard requirements can be done. It is chosen for FM
radio because of the large FM deviation involved.
Nominal setting; FM deviations up to 100 kHz can be processed without sound
DAC clipping. The clipping level is 535 mV (RMS) typically.
+6 dB nominal; chosen for M/N standard due to less nominal frequency
deviation
+12 dB nominal; implemented for flexibility reasons. With this setting, the
adaptation to different standard requirements can be done.
don’t care if SSIF output is chosen (SSIF_SND[1:0] = 10)
Description
When active, the mono sound signal is muted if the horizontal lock flag
(N_H_LOCK) disappears. This setting only makes sense in case the sound
DAC output is also set to mono sound (SSIF_SND[1:0] = 01). FOR_MUTE
has no function if SSIF_SND[1:0] =10.
either mono sound or SSIF can be chosen for the sound DAC output
off
on
don’t care if SSIF output is chosen (SSIF_SND[1:0] = 10)
mono sound
SSIF
Rev. 1 — 3 March 2011
[1]
…continued
TDA8296
© NXP B.V. 2011. All rights reserved.
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