IC Data Sheets
8.
8.2
Diagram
B06, STA381BWTR (IC U602)
Figure 8-4 Internal block diagram and pin configuration
19240_300_120221.eps
120224
Block diagram
Pinning information
1
2
3
4
5
6
7
8
9
10
11
12
36
35
34
33
32
31
30
29
28
27
26
25
VCC_REG
VSS_REG
OUT2B
GND2
VCC2
OUT2A
OUT1B
VCC1
GND1
OUT1A
VDD_REG
GND_REG
MCLK
AGNDPLL
VREGFILT
TWARNEXT/FFX4B
EAPD/FFX4A
FFX3B
FFX3A
GNDDIG1
VDDDIG1
VDD3V3CHP
CPP
GNDPSUB
1
3
14
15
16
17
1
8
19
20
21
22
2
3
24
4
8
47
46
45
44
4
3
42
41
40
3
9
38
3
7
F
3
X
_FI
LT
F
3
XL
F
3
XR
LIN
EINL
LIN
EINR
LIN
EHPOUT_L
LIN
EHPOUT_R
GND
A
S
OFTM
UTE
VDD
3
V
3
CPV
SS
CPM
VDD
DIG2
GNDDIG2
TE
S
TMODE
S
A
S
CL
S
DA
INTLINE
PWDN
RE
S
ET
S
DI
LRCKI
BICK
I
STA381BW
PWDN
TESTMODE
LRCKI
BICKI
4
Half
Bridges
OUT 1A
OUT 1B
OUT 2A
OUT 2B
FFX3A
FFX3B
MCLK
SDI
LINEINL
LINEINR
LINEHPOUT_L
LINEHPOUT_R
SDA
SCL
IIC
CPVSS
CPP
FFX4A
FFX4B
GND
_REG
SOFT_MUTE
2
x
GND
2 x
V
C
C
VDD_REG
GNDP
S
UB
2 x
VDD
D
IG
2 x
GNDDIG
VREGFIL
T
AGNDPLL
VCC_REG
V
SS
_R
EG
CPM
2.1 Channel
Audio Processor
STAudioFx
TM
STSpeakerSafe
TM
Parametric EQ
Volume
Bass and Treble
Speaker Compensation
Stereo Widening
SA
RESET
INTLINE
GND
A
Headph one
(2Vrms)
PLL
Negative
Charge
Pump
-3.3V
Control logic
&
Protections
REG_M
3
VDD
3
V
3
CHP
F
3
X_FILT
FFX
TM
Modulator
Binary
Ternary
F3XL
F3XR
STA381BW