參數(shù)資料
型號: TDA7303TR
廠商: STMICROELECTRONICS
元件分類: 音頻控制
英文描述: 2 CHANNEL(S), VOLUME CONTROL CIRCUIT, PDSO28
封裝: ROHS COMPLIANT, SOP-28
文件頁數(shù): 8/20頁
文件大?。?/td> 252K
代理商: TDA7303TR
Software specification
TDA7303
4.3
Data bytes (detailed description)
For example a volume of -45 dB is given by: 0 0 1 0 0 1 0 0
For example attenuation of 25 dB on speaker RF is given by: 1 0 1 1 0 1 0 0
Table 8.
Volume
MSB
LSB
Function
0
B2
B1
B0
A2
A1
A0
Volume 1.25 dB steps
000
0
001
-1.25
010
-2.5
011
-3.75
100
-5
101
-6.25
110
-7.5
111
-8.75
Volume 10 dB steps
000
0
001
-10
010
-20
011
-30
100
-40
101
-50
110
-60
111
-70
Table 9.
Speaker attenuators
MSB
LSB
Function
1
0
B1
B0
A2
A1
A0
Speaker LF
1
0
1
B1
B0
A2
A1
A0
Speaker RF
1
0
B1
B0
A2
A1
A0
Speaker LR
1
B1
B0
A2
A1
A0
Speaker RR
00
0
1
-1.25
01
0
-2.5
0
1
-3.75
10
0
-5
1
0
1
-6.25
11
0
-7.5
1
-8.75
00
0
01
-10
10
-20
11
-30
11
1
Mute
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