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AS3421 数据表(PDF) 32 Page - ams AG

部件名 AS3421
功能描述  Low Power Ambient Noise-Cancel l ing Speaker Dr iver
PDF  61 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS3421 数据表(HTML) 32 Page - ams AG

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Revision 0.90
32 - 61
AS3421 AS3422
Datasheet - R e g i s t e r D e s c r i p t i o n
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
Table 20. GP_OP_R Register
Name
Base
Default
GP_OP_R
2-wire serial
00h
Offset: 0Ch
Right General Purpose Operational Amplifier Register
Enables the right opamp stages, defines opamp 2 mode and gain and sets the HP mode. This register is
reset at POR.
Bit
Bit Name
Default
Access
Bit Description
7
OP_REG_ON
0
R/W
Defines which register is used for the opamp and HP settings.
0: settings of register 33h and 34h are used
1: register 0B and 0Ch are used
6
HP_MODE
0
R/W
Selects the line input mode
0: single ended stereo mode
1: mono differential mode
5:2
OP2R<3:0>
0000
R/W
Mode and volume settings for right OP2, adjustable in 15 steps of 0.75dB
0000: OP2R in inverting mode
0001: 0 dB gain, OP2R 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
OP2R_ON
0
R/W
Enables right OP 2
0: right OP2 is switched off
1: right OP2 is enabled
0
OP1R_ON
0
R/W
Enables right OP 1
0: right OP1 is switched off
1: right OP1 is enabled
Table 19. 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



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