AS3515_08 datasheet(26/67 Pages) AMSCO

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AS3515 V15

austriamicrosystems

Data Sheet, Confidential

www.austriamicrosystems.com

Revision 3.1

- 66

6.8

Audio Settings

6.8.1

First AudioSet Register (14h)

Table 26 AudioSet1 Register

Bit

Name

Description

ADC_on

1: ADC for recording is enables

0: ADC disabled

SUM_on

1: Summing / Mixing stage is enabled

0: Summing / Mixing stage is disabled (no audio output possible)

DAC_on

1: DAC enabled

0: DAC disabled

LOUT_on

1: Line output enabled

0: Line output disabled

LIN2_on

1: Line input 2 enabled

0: Line input 2 disabled

LIN1_on

1: Line input 1 enabled

0: Line input 1 disabled

MIC2_on

1: Microphone input 2 enabled

0: Microphone input 2 disabled

MIC1_on

1: Microphone input 1 enabled

0: Microphone input 1 disabled

The register is R/W; default value is 00h

Second AudioSet Register (15h)

Table 27 AudioSet2 Register

Bit

Name

Description

BIAS_off

1: Bias disabled

0: Bias enabled

DITH_off

1: no dither added

0: add dither to the audio stream

AGC_off

1: Automatic gain control for summing stage disabled

0: Automatic gain control for summing stage enabled

4,3

IBR_DAC<1:0> Bias current reduction settings for DAC:

00: 0%

01: 25%

10: 40%

11: 50%

LSP_LP

Low power mode for speaker output:

1: speaker output driver set for 16Ohm load or more (25%)

0: speaker output driver set for 4Ohm to 16Ohm load (100%)

1,0

IBR_LSP<1:0> Bias current reduction settings for speaker output:

00: 0%

01: 17%

10: 34%

11: 50%

The register is R/W; default value is 00h

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