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AS3430 데이터시트(PDF) 30 Page - ams AG

부품명 AS3430
상세설명  Low Power Ambient Noise-Cancelling Speaker Driver
PDF  51 Pages
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제조업체  AMSCO [ams AG]
홈페이지  http://www.ams.com
Logo AMSCO - ams AG

AS3430 데이터시트(HTML) 30 Page - ams AG

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Revision 1.02
30 - 51
AS3400 AS3410 AS3430 1v0
Data Sheet - R e g i s t e r D e s c r i p t i o n
Table 17. LINE_IN Register
Name
Base
Default
LINE_IN
2-wire serial
00h
Offset: 0Ah
Line Input Register
Configures the attenuation for the line input, defines the line input operation mode and enables register
0Ah. This register is reset at POR.
Bit
Bit Name
Default
Access
Bit Description
7
LIN_REG_ON
0
R/W
Defines which source is used for the line input settings.
0: settings of register 33h and VOL pin are used
1: register 0Ah is used
6
LIN_MODE
0
R/W
Selects the line input mode
0: single ended stereo mode
1: mono differential mode
5:0
LIN_VOL<5:0>
00 0000
R/W
Volume settings for line input, adjustable in 63 steps of 0.75dB
00 0000: MUTE
00 0001:-46.5dB gain
00 0010:-45.75dB gain
..
11 1110:-0.75dB gain
11 1111:.0 dB gain
Table 18. GP_OP_L Register
Name
Base
Default
GP_OP_L
2-wire serial
00h
Offset: 0Bh
Left General Purpose Operational Amplifier Register
Enables the left opamp stages, defines opamp 2 mode and gain and sets the HP input multiplexer. This
register is reset at POR.
Bit
Bit Name
Default
Access
Bit Description
7:6
HP_MUX<1:0>
00
R/W
Multiplexes the analog audio signal to HP amp
00: MIC: selects QMICL/R output
01: OP1: selects QOP1L/R outputs
10:OP2: selects QOP2L/R output
11: open: no signal mixed together with the line input signal
5:2
OP2L<3:0>
0000
R/W
Mode and volume settings for left OP2, adjustable in 15 steps of 0.75dB
0000: OP2L in inverting mode
0001: 0 dB gain, OP2L in non inverting mode
0001: 0.75 dB gain, non inverting
..,
1110: 9.75dB gain, non inverting
1111:.10.5 dB gain, non inverting
1
OP2L_ON
0
R/W
Enables left OP 2
0: left OP2 is switched off
1: left OP2 is enabled
0
OP1L_ON
0
R/W
Enables left OP 1
0: left OP1 is switched off
1: left OP1 is enabled



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