Silan
Semiconductors
2. Chips address
SC7313
0
0
1
0
0
0 (LSB)
1 (MSB)
0
3. Data bytes
MSB
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
1
B2
0
1
0
1
0
1
1
B1
B1
B1
B1
B1
G1
0
1
B0
B0
B0
B0
B0
G0
C3
C3
A2
A2
A2
A2
A2
S2
C2
C2
A1
A1
A1
A1
A1
S1
C1
C1
LSB
A0
A0
A0
A0
A0
S0
C0
C0
Function
Volume Control
Speaker ATT LR
Speaker ATT RR
Speaker ATT LF
Speaker ATT RF
Audio switch
Bass control
Treble control
Note: Ax=1.25dB steps;Bx=10dB steps;Cx=2dB steps;Gx=3.75dB steps
DETAILED DESCRIPTION OF DATA BYTES
1. Volume
MSB
0
0
B2
B1
B0
A2
0
0
0
0
1
1
1
1
0
0
B2
0
0
0
0
1
1
1
1
B1
0
0
1
1
0
0
1
1
B0
0
1
0
1
0
1
0
1
A2
A1
0
0
1
1
0
0
1
1
A1
LSB
A0
0
1
0
1
0
1
0
1
A0
Function
Volume 1.25dB steps
0
-1.25
-2.5
-3.75
-5
-6.25
-7.5
-8.75
Volume 10dB steps
0
-10
-20
-30
-40
-50
-60
-70
For example, a volume of –45dB is given by: 00100100
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.1
2002.02.26
9
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
