IS31AP2121 Datasheet, PDF (18/37 Pages) Integrated Silicon Solution, Inc – 2X20W STEREO / 1X 40W MONO DIGITAL AUDIO AMPLIFIER

IS31AP2121
POWER ON SEQUENCE
Hereunder is IS31AP2121’s power on sequence. Give a de-mute command via I2C when the whole system is
stable.
Figure 20 Power On Sequence
Table 2 Power On Sequence
Symbol Condition
Min.
t1
0
t2
0
t3
10
t4
0
t5
10
t6
10
t7
0
t8
200
t9
20
t10
DEF=L
-
t11
DEF=H
-
t12
25
t13
25
t14
-
t15
DEF=L or H
-
Max. Unit
-
ms
-
ms
-
ms
-
ms
-
ms
-
ms
-
ms
-
ms
-
ms
0.1 ms
0.1 ms
-
ms
-
ms
22
ms
0.1 ms
POWER OFF SEQUENCE
Hereunder is IS31AP2121’s power off sequence.
VCC
VDD
MCLK
BCLK
LRCIN
RSTB
t5
t4
t3
t2
PDB
t1
I2C
Don’t Care
OUT
Figure 21 Power Off Sequence
Integrated Silicon Solution, Inc. – www.issi.com
18
Rev. 0A, 10/17/2014