AK4538 Datasheet, PDF (51/70 Pages) Asahi Kasei Microsystems – 16Bit DS CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4538]
Addr
07H
Register Name
MIC/HP Control
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
AUXAD MPWRE MPWRI MICAD MSEL MGAIN
RD
RD
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
0
1
MGAIN: 1^st Mic-amp Gain control
0: 0dB
1: 20dB (Default)
MSEL: Microphone select
0: Internal Mic (Default)
1: External Mic
MICAD: Switch Control from Mic In to ADC.
0: OFF (Default)
1: ON
MPWRI: Power Supply Control for Internal Microphone
0: OFF (Default)
1: ON
MPWRE: Power Supply for External Microphone
0: OFF (Default)
1: ON
AUXAD: Switch Control from AUX IN to ADC.
0: OFF (Default)
1: ON
MS0198-E-01
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2003/5