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參數(shù)資料
| 型號(hào)： | TDA7409D |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 音頻控制 |
| 英文描述： | 1 CHANNEL(S), TONE CONTROL CIRCUIT, PDSO20 |
| 封裝： | SOP-20 |
| 文件頁數(shù)： | 10/25頁 |
| 文件大小： | 299K |
| 代理商： | TDA7409D |
TDA7409
18/25
2.5.3 Volume
Note 2: It is not recommended to use a gain more than 20dB for system performance reason. In general, the max. gain should be limited by
software to the maximum value, which is needed for the system.
2.5.4 Treble Programming
MSB
LSB
ATTENUATION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
0
1
1
0
1
0
1
0
1
0
1
X
0
1
0
1
X
0
1
0
1
X
0
1
0
1
0
1
0
1
0
1
X
Gain/Attenuation
not allow
+30.0dB
+29.0dB
:
+1.0dB
0.0dB
- 1.0dB
- 2.0dB
:
-78.0dB
-79.0dB
Mute
0
Must BE “0”
MSB
LSB
BASS & TREBLE PROGRAMMING
D7
D6
D5
D4
D3
D2
D1
D0
0
1
1
1
0
1
0
1
1
1
0
1
0
1
0
1
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Treble Steps
15dB
14dB
13dB
12dB
11dB
10dB
9dB
8dB
7dB
6dB
5dB
4dB
3dB
2dB
1dB
0dB
0
1
Mode
Cut
Boost
X
0
1
0
1
0
1
Treble Center Frequency
10KHz
12.5KHz
15KHz
17.5KHz
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