AS3517H-ECTP datasheet(72/94 Pages) AMSCO

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AS3517 V17

Data Sheet, Confidential

www.austriamicrosystems.com

Table 70 AudioSet_3 Register

Name

Base

Default

AudioSet_3

2-wire serial

00h

Third Audio Set Register

Offset: 16h

Sets headphone output bias currents and operation modes and enables audio signal

inputs to ΣR and ΣL.

This register is reset at a DVDD-POR.

Bit

Bit Name

Default

Access

Bit Description

LIN1MIX_OFF

R/W

Input from line input 1 to ΣR and ΣL

0: ON

1: OFF

LIN2MIX_OFF

R/W

Input from line input 2 to ΣR and ΣL

0: ON

1: OFF

MIC1MIX_OFF

R/W

Input from microphone 1 to ΣR and ΣL

0: ON

1: OFF

MIC2MIX_OFF

R/W

Input from microphone 2 to ΣR and ΣL

0: ON

1: OFF

DACMIX_OFF

R/W

Input from DAC to ΣR and ΣL

0: ON

1: OFF

ZCU_OFF

R/W

Zero cross gain update of audio outputs. Audio gain settings

changes will only be executed when the signal level is close to

zero

0: zero cross update enabled

1: zero cross update disabled

IBR_HPH

R/W

Bias current increase for the headphone amplifier depending

on load conditions

0: 100%

1: 150%

HPCM_ON

R/W

Power-up of the headphone common mode buffer:

0: headphone CM buffer is switched off

1: headphone CM buffer is switched on

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