sta559bwqs STMicroelectronics, sta559bwqs Datasheet - Page 42

• Manufacturer Part Number: sta559bwqs
• Description: 5-v, 2-a, 2.1-channel High-efficiency Digital Audio System With Qsound Qhd?
• Manufacturer: STMicroelectronics

Register description
5.6.7
5.7
5.7.1
5.7.2
5.7.3
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External amplifier power down
Table 51.
The EAPD register directly disables/enables the internal power circuitry.
When EAPD = 0, the internal power section is placed on a low-power state (disabled). This
register will also control the DDX4B/EAPD output pin when OCFG = 10.
Volume control registers (addr 0x06 - 0x0A)
Mute/line output configuration register
Table 52.
Line output is only active when OCFG = 00. In this case LOC will determine the line output
configuration. The source of the line output is always the channel 1 and 2 inputs.
Master volume register
Channel 1 volume
Bit
7
LOC1
C1V7
MV7
LOC[1:0]
D7
D7
D7
0
1
0
00
01
10
RW
RW
External amplifier power down
Line output configuration
LOC0
C1V6
MV6
D6
D6
D6
0
1
1
RST
Line output fixed - no volume, no EQ
Line output variable - CH3 volume effects line output, no EQ
Line output variable with EQ - CH3 volume effects line output
0
C1V5
MV5
D5
D5
D5
1
1
Name
EAPD
C1V4
MV4
D4
D4
D4
1
0
Line output configuration
External amplifier power down:
0: External power stage power down active
1: Normal operation
C1V3
C3M
MV3
D3
D3
D3
0
1
0
C1V2
C2M
MV2
Description
D2
D2
D2
0
1
0
C1V1
C1M
MV1
D1
D1
D1
0
1
0
STA559BWQS
MMUTE
C1V0
MV0
D0
D0
D0
0
1
0