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參數(shù)資料
| 型號： | TDA9875AH/V2,557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, QFP |
| 文件頁數(shù)： | 75/96頁 |
| 文件大?。?/td> | 324K |
| 代理商： | TDA9875AH/V2,557 |
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1999 Dec 20
77
Philips Semiconductors
Product specication
Digital TV Sound Processor (DTVSP)
TDA9875A
10.3.40 BASS BOOST CONTROL REGISTER
This register is used to select from a few sample bass boost settings to modify the frequency characteristics of the Main
channel (shelving filter). Bits B3 to B0 apply to the left channel, bits B7 to B4 apply to the right channel. This function
must be used with care in order to avoid clipping distortion at high volume settings.
More sophisticated control of the bass boost filter can be exercised in the expert mode (see Section 10.5). The user then
has full control over this second-order filter and can, within limits, realize bass equalizers with arbitrary centre
frequencies, Q factors and boost/cut settings.
Table 83 Subaddress 45 (note 1)
Note
1. The default setting at power-up is 0000 0000.
Table 84 Gain setting right channel
BIT
NAME
VALUE
DESCRIPTION
7 (MSB)
B7
gain setting of right channel (see Table 84)
6B6
5B5
4B4
3B3
gain setting of left channel (see Table 85)
2B2
1B1
0 (LSB)
B0
B7
B6
B5
B4
GAIN SETTING (dB)
CORNER FREQUENCY (Hz)
1010
20
350
1001
18
350
1000
16
350
0111
14
350
0110
12
350
0101
10
350
0100
8
350
0011
6
350
0010
4
350
0001
2
350
0000
0
350
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