sta381bws STMicroelectronics, sta381bws Datasheet - Page 19

• Manufacturer Part Number: sta381bws
• Description: Sound Terminal 2.1-channel High-efficiency Digital Audio System Sound Terminal 2.1-channel High-efficiency Digital Audio System
• Manufacturer: STMicroelectronics

STA381BWS
2.2
Pin description
Table 2.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
VQFN 48-pin
Pin list
VCC_REG
VSS_REG
OUT2B
GND2
VCC2
OUT2A
OUT1B
VCC1
GND1
OUT1A
VDD_REG
GND_REG
F3X_FILT
F3XL
F3XR
LINEINL
LINEINR
LINEHPOUT_L
LINEHPOUT_R
GNDA
SOFTMUTE
VDD3V3
CPVSS
CPM
GNDPSUB
CPP
VDD3V3CHP
VDDDIG1
GNDDIG1
FFX3A
Name
Doc ID 018937 Rev 2
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
Type
VCC reg
Vss reg, VCC_REG-3.3V
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
Description
Pin connections
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