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STA350B датащи(PDF) 55 Page - STMicroelectronics

номер детали STA350B
подробное описание детали  2.1-channel high-efficiency digital audio system Sound TerminalR
PDF  94 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
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STA350B датащи(HTML) 55 Page - STMicroelectronics

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STA350B, STA350BW
Register description
94
to power down the power-stage, then the master clock to all internal hardware except the
I2C block is gated. This places the IC in a very low power consumption state.
8.6.7
External amplifier power-down
The EAPD register directly disables/enables the internal power circuitry.
When EAPD = 0, the internal power section is placed in a low-power state (disabled). This
register also controls the FFX4B/EAPD output pin when OCFG = 10.
8.7
Volume control registers (addr 0x06 - 0x0A)
8.7.1
Mute/line output configuration register
Line output is active when OCFG = 00 only. In this case LOC determines the line output
configuration. The source of the line output is always the channel 1 and 2 inputs.
8.7.2
Master volume register
8.7.3
Channel 1 volume
Table 50. 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
LOC1
LOC0
Reserved
Reserved
C3M
C2M
C1M
MMUTE
0000
0000
Table 51. Line output configuration
LOC[1:0]
Line output configuration
00
Line output fixed - no volume, no EQ
01
Line output variable - CH3 volume effects line output, no EQ
10
Line output variable with EQ - CH3 volume effects line output
D7
D6
D5
D4
D3
D2
D1
D0
MV7MV6
MV5MV4
MV3
MV2
MV1MV0
1111
1111
D7
D6
D5
D4
D3
D2
D1
D0
C1V7
C1V6
C1V5
C1V4
C1V3
C1V2
C1V1
C1V0
0110
0000



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