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STA381BW View Datasheet(PDF) - STMicroelectronics

Part Name
Description
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STA381BW Datasheet PDF : 174 Pages
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Pin connections
STA381BW
2.2
Pin description
VQFN 48-pin
Name
1
VCC_REG
2
VSS_REG
3
OUT2B
4
GND2
5
VCC2
6
OUT2A
7
OUT1B
8
VCC1
9
GND1
10
OUT1A
11
VDD_REG
12
GND_REG
13
F3X_FILT
14
F3XL
15
F3XR
16
LINEINL
17
LINEINR
18
LINEHPOUT_L
19
LINEHPOUT_R
20
GNDA
21
SOFTMUTE
22
VDD3V3
23
CPVSS
24
CPM
25
GNDPSUB
26
CPP
27
VDD3V3CHP
28
VDDDIG1
29
GNDDIG1
30
FFX3A
31
FFX3B
Table 2. Pin list
Type
Description
Power
Power
Output
Power
Power
Output
Output
Power
Power
Output
Power
Power
Power
Output
Output
Input
Input
Output
Output
Power
Input
Power
Power
Filter
Power
Filter
Power
Power
Power
Output
Output
VCC reg
Vss reg, VCC_REG-3.3 V
Half-bridge 2B output
Half-bridge 2A and 2B ground
Half-bridge 2A and 2B supply
Half-bridge 2A output
Half-bridge 1B output
Half-bridge 1A and 1B supply
Half-bridge 1A and 1B ground
Half-bridge 1A output
VDD reg 3.3 V
DC reg ground
F3X reference voltage
F3X analog out left channel
F3X analog out right channel
Line in left channel
Line in right channel
Headphone/line driver left channel
Headphone/line driver right channel
Headphone/line driver power ground
Soft mute
+3 V LDO power supply
-3.3 V charge pump pin
CHP Cfly negative
Charge pump ground
CHP Cfly positive
Charge pump power supply
I/O ring power supply
Digital core ground
Digital PWM line out
Digital PWM line out
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DocID018835 Rev 8
 

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