STA381BWSTR STMicroelectronics, STA381BWSTR Datasheet - Page 47
STA381BWSTR
Manufacturer Part Number
STA381BWSTR
Description
Audio DSPs Sound Terminal 2.1 High EFF Dig Audio
Manufacturer
STMicroelectronics
Datasheet
1.STA381BWSTR.pdf
(171 pages)
Specifications of STA381BWSTR
Product Category
Audio DSPs
Rohs
yes
Operating Supply Voltage
4.5 V to 25.5 V
Operating Temperature Range
0 C to + 150 C
Mounting Style
SMD/SMT
Package / Case
VQFN-48
Snr
100 dB
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STA381BWS
6.5
6.6
MVOL register (addr 0x04)
Table 19.
1. If the volume is below -60 dB, the level will be approximated to 1 dB step.
FINEVOL register (addr 0x05)
Table 20.
Reserved
Bit
Bit
7
6
5
4
3
2
1
0
1
0
D7
D7
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Master volume register
Fine volume register
Reserved
D6
D6
0
0
RST
RST
0
0
0
0
0
0
0
0
Reserved
D5
D5
0
0
Doc ID 018937 Rev 6
MVOL[7:0]
FINE[1:0]
Name
Name
Reserved
D4
D4
0
0
MVOL[7:0]
Description
0x00: Hard mute (immediate switchoff)
0x01: Mute
0x02: Mute (PWM on)
0x03: Mute (PWM on)
others: volume = [(MVOL-255)/2] dB
Description
00 = 0 dB
01 = -0.125 dB
10 = -0.25 dB
11 = -0.375 dB
Reserved
D3
D3
0
0
Register description: New Map
Reserved
D2
D2
0
0
D1
D1
0
0
FINE[1:0]
(1)
D0
D0
0
0
47/171
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