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STA323W Datasheet(PDF) 46 Page - STMicroelectronics

Part # STA323W
Description  2.1 high efficiency digital audio system
PDF  71 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA323W Datasheet(HTML) 46 Page - STMicroelectronics

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Register descriptions
STA323W
46/71
When ECLE is active, it issues a power device power down signal (EAPD) on clock loss
detection.
EAPD is used to actively power down a connected DDX® power device. This register has to
be written to 1 at start-up to enable the DDX® power device for normal operation.
7.8
Volume control
7.8.1
Master controls
Master mute register (address 0x06)
Master volume register (Address 0x07)
Note:
The value of volume derived from MVOL is dependent on the AMV Auto Mode Volume
settings.
7.8.2
Channel controls
Channel 1 volume (address 0x08)
Table 47.
Auto-EAPD on clock loss enable
Bit
R/W
RST
Name
Description
7R/W
0
ECLE
0: disabled
1: enabled
Table 48.
External amplifier power down
Bit
R/W
RST
Name
Description
7
R/W
0
EAPD
0: external power stage power down active
1: normal operation
D7
D6
D5
D4
D3
D2
D1
D0
MMUTE
0
D7
D6
D5
D4
D3
D2
D1
D0
MV7
MV6
MV5
MV4
MV3
MV2
MV1
MV0
11
11
1
1
1
1
D7
D6
D5
D4
D3
D2
D1
D0
C1V7
C1V6
C1V5
C1V4
C1V3
C1V2
C1V1
C1V0
0
110
000
0



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