TDA7300 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TDA7300' PDF : 16 Pages View PDF
TDA7300
SOFTWARE SPECIFICATION (continued)
DATA BYTES (detailed description)
VOLUME
MSB
00
00
LSB
B2 B1 B0 A2 A1 A0 Volume 2dB Steps
0 0 00
0 0 1 -2
0 1 0 -4
0 1 1 -6
1 0 0 -8
1 0 1 Not allowed
1 1 0 Not allowed
1 1 1 Not allowed
B2 B1 B0
Volume 10dB steps
000
+10
001
0
010
-10
011
-20
100
-30
101
-40
110
-50
111
-60
For example if you want setting the volume at -32dB the 8 bit string is: 0 0 1 0 0 0 0 1
SPEAKER ATTENUATORS
MSB
LSB
1 0 0 B1 B0 A2 A1 A0 Speaker LF
1 0 1 B1 B0 A2 A1 A0 Speaker RF
1 1 0 B1 B0 A2 A1 A0 Speaker LR
1 1 1 B1 B0 A2 A1 A0 Speaker RR
0 0 00
0 0 1 -2
0 1 0 -4
0 1 1 -6
1 0 0 -8
1 0 1 Not allowed
1 1 0 Not allowed
1 1 1 Not allowed
00
0
01
-10
10
-20
11
-30
For example attenuation of 24dB on speaker RF is given by: 1 0 1 1 0 0 1 0
12/16
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