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參數(shù)資料
| 型號： | TDA9875 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Digital TV Sound Processor DTVSP |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP64 |
| 文件頁數(shù)： | 53/92頁 |
| 文件大小： | 279K |
| 代理商： | TDA9875 |
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1998 Feb 13
53
Philips Semiconductors
Preliminary specification
Digital TV Sound Processor (DTVSP)
TDA9875
Table 60
Pseudo control setting
Table 61
Spatial control setting
Table 62
Description of Table 58 (notes 1, 2 and 3)
Notes
1.
2.
Switching the AVL off will reset the associated hardware to a defined state.
When the signal source for the Main channel is changed while the AVL is on, the AVL needs to be reset in order to
avoid excessive settling times. This can be achieved by switching the AVL off and on again.
The pseudo stereo function is based on an all-pass filter. A 90 degrees phase shift occurs at the frequencies stated
in Table 60. There is a gain of 3 dB in the audio channel containing the filter.
3.
10.3.23 V
OLUME CONTROL REGISTERS
(
MAIN
)
10.3.23.1 Description
These two registers control the volume setting of the Main (loudspeaker) channel. The register at subaddress 26 applies
to the left channel signal, while the register at subaddress 27 applies to the right channel signal.
Balance control is exercised by offsetting the left and right channel volume settings.
B3
B2
PSEUDO SETTING
(Hz)
0
0
1
1
0
1
0
1
off
300
200
150
B5
B4
SPATIAL SETTING
(%)
0
0
1
1
0
1
0
1
off
30
40
52
NAME
FUNCTION
AVL0, AVL1
These bits set the mode of operation of the automatic volume level control function at the entrance to
the Main (loudspeaker) channel.
These bits set the amount of the effect function (pseudo stereo) for mono signals in the Main channel.
This function should be activated only in accordance with the result of the sound mode identification.
These bits set the amount of the effect function (stereo base width expansion) for stereo signals in the
Main channel. This function should be activated only in accordance with the result of the sound mode
identification.
PSEUDO0,
PSEUDO1
SPATIAL0,
SPATIAL1
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TDA9875A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
| TDA9875AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Digital TV Sound Processor DTVSP |
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| TDA9880 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
| TDA9880T | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Alignment-free multistandard vision and FM sound IF-PLL demodulator |
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