參數(shù)資料
型號(hào): TDA7405
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), TONE CONTROL CIRCUIT, PQFP44
封裝: 10 X 10 MM, 1.40 MM HEIGHT, TQFP-44
文件頁數(shù): 44/57頁
文件大?。?/td> 750K
代理商: TDA7405
Obsolete
Product(s)
- Obsolete
Product(s)
49/57
TDA7405
Table 27. Speaker, Subwoofer and Mixer Level-Control (16-20)
The programming of all Speaker-, Subwoofer and Mixing Level-Controls are the same.
Table 28. Testing Audioprocessor (21)
Note : This byte is used for testing or evaluation purposes only and must not set to other values than "11101110" in the application!
MSB
LSB
ATTENUATION
D7
D6
D5
D4
D3
D2
D1
D0
1
:
1
0
:
0
:
0
x
0
:
0
:
0
:
1
1
0
:
0
:
0
:
0
1
0
:
0
:
0
1
:
0
x
1
:
0
:
1
0
:
1
x
1
:
0
:
1
0
:
1
x
1
:
0
:
1
0
:
1
x
1
:
1
0
1
:
1
0
:
0
1
x
+15 dB
:
+1 dB
0 dB
-1 dB
:
-15 dB
-16 dB
:
-78 dB
-79 dB
Mute
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
Audioprocessor Testmode
off
on
0
1
1
0
1
0
1
1
0
1
0
1
0
1
0
1
Test-Multiplexer
Compander Log-Amp. Output
Compander Low-Pass Output
Compander DAC Output
200kHz Oscillator
not allowed
AM NB Mute
NB-Hold
internal Reference
0
1
Compander Testmode
off
on
0
1
Clock
external
internal
0
1
AZ Function
off
on
0
1
SC-Clock
Fast Mode
Normal Mode
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