APA3163 Datasheet, PDF (21/45 Pages) Anpec Electronics Coropration – 20W Stereo Digital Class-D Audio Power Amplifier with EQ and DRC

APA3163
Function Description (Cont.)
Sample Calculation for 3.23 Format
dB
Linear
0
1
5
1.7782794
-5
0.5623413
X
L = 10^(X/20)
Sample Calculation for 9.17 Format
dB
Linear
0
1
5
1.7782794
-5
0.5623413
X
L = 10^(X/20)
Decimal
8388608
14917288
4717260
D = 8388608 × L
Decimal
131072
233082.6
73707.2
D = 131072 × L
Hex (3.23 Format)
00800000
00E39EA8
0047FACC
H = dec2hex (D, 8)
Hex (9.17 Format)
00020000
00038E7A
00011FEB
H = dec2hex (D, 8)
Recommended Use Model
AVDD/DVDD 3V
SD
MCLK
I²S
LRCLK
SCLK
SDIN
I²C
SCL
SDA
RST
t_VDD-PVCCL
PVDD/AVCC
Intialization
Normal Operation
Shutdown
Power Down
t_VDDH-DL
3V
t_DL-VDDH
t_DV-RH t_RH-I2C
Trim
t_POR
t_POR
Stable and Valid Clocks
Clock Errors and
Rate Changes OK
DAP
t_autodetect ^Config
Other
Config
t_exitSD
t_autodetect
Exit SD
Volume and Mute
Commands
Reconfigure DAP After Shutdown
Reconfigure DAP After Shutdown
Stable and
Valid Clocks
Enter
SD
t_enterSD
t_RL-DV
t_PVCCH-I2C
10V
7.5V
t_RL-PVCCH
10V
7.5V
t_PVCCL-VDDH
Figure 21. Recommended Command Sequence
Copyright © ANPEC Electronics Corp.
21
Rev. A.2 - Jan., 2013
www.anpec.com.tw