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AS3412 Datasheet(PDF) 64 Page - ams AG

Part # AS3412
Description  The AS3412 is a speaker driver with Ambient Noise Cancelling
PDF  84 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3412 Datasheet(HTML) 64 Page - ams AG

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Page 64
ams Datasheet
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[v1-00] 2016-Apr-06
AS3412 − Register Description
Figure 79:
ECO Register Description
Figure 80:
ANC_R Register Description
Name
Address
Default Value
ECO
0x17
0x00
This register controls the economic (ECO) mode for all analog audio blocks. Furthermore it includes also other
general settings.
Bit
Bit Name
Default
Access
Bit Description
7
SLIDE_PWR_UP
0
R/W
This bit enables the slide switch control mode of the
AS3512. If this bit is programmed the device can be
powered up and powered down via a slide switch.
0: Slide switch control disabled
1: Slide switch control enabled
3
ENABLE_HPH_
ECO
0R/W
This bit enables the eco mode of the headphone
amplifier.
0: Power save function disabled
1: Power save function enabled
2
ENABLE_MIC_
ECO
0R/W
This bit enables the eco mode of the microphone
amplifier.
0: Power save function disabled
1: Power save function enabled
0
ENABLE_OPAMP_
ECO
0R/W
This bit enables the eco mode of the operational
amplifier amplifiers for ANC filter design.
0: Power save function disabled
1: Power save function enabled
Name
Address
Default Value
ANC_R
0x30
80h
The ANC_R Register configures the gain for the right microphone input.
Bit
Bit Name
Default
Access
Bit Description
7
TEST_BIT_5
1
R/W
Please do not write this register.
5:0
MICR_VOL<5:0>
000 0000
R/W
Volume settings for right microphone input,
adjustable in 63 steps of 0.5dB
00 0000: MUTE
00 0001: 0dB gain
00 0010: 0.5dB gain
00 0011: 1dB gain
…
11 1110: 30dB gain
11 1111: 31dB gain



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