TDA7303TR 查看數據表（PDF） - STMicroelectronics
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TDA7303TR Datasheet PDF : 20 Pages
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Software specification
TDA7303
4.3
Data bytes (detailed description)
Table 8. Volume
MSB
0
0
B2
B1
B0
A2
A1
0
0
0
0
0
1
0
1
1
0
1
0
1
1
1
1
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
For example a volume of -45 dB is given by: 0 0 1 0 0 1 0 0
LSB
A0
0
1
0
1
0
1
0
1
Function
Volume 1.25 dB steps
0
-1.25
-2.5
-3.75
-5
-6.25
-7.5
-8.75
Volume 10 dB steps
0
-10
-20
-30
-40
-50
-60
-70
Table 9. Speaker attenuators
MSB
LSB
1
0
0
B1
B0
A2
A1
A0
1
0
1
B1
B0
A2
A1
A0
1
1
0
B1
B0
A2
A1
A0
1
1
1
B1
B0
A2
A1
A0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
0
0
0
1
1
0
1
1
1
1
1
1
1
Function
Speaker LF
Speaker RF
Speaker LR
Speaker RR
0
-1.25
-2.5
-3.75
-5
-6.25
-7.5
-8.75
0
-10
-20
-30
Mute
For example attenuation of 25 dB on speaker RF is given by: 1 0 1 1 0 1 0 0
16/20
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