AK4641 Datasheet, PDF (45/51 Pages) Asahi Kasei Microsystems – 16 BIT CODEC WITH BLUETOOTH INTERFACE

ASAHI KASEI
[AK4641]
Addr
0EH
Register Name
Volume Control
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
ATTM ATTS2 ATTS1 ATTS0 GN3
GN2
GN1
GN0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
1
0
1
0
1
1
1
GN3-0: Volume of AUX In (see Table 16.)
ATTS2-0: Attenuator select of signal from Mic IN to Stereo Mixer (See Table 8.)
ATTM: Attenuator control for signal from Mic IN to Mono Mixer
0: 0dB (Default)
1: −4dB
Addr
0FH
Register Name
Status
R/W
Default
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
DTMIC
RD
RD
RD
RD
RD
RD
RD
RD
0
0
0
0
0
0
0
0
DTMIC: Microphone Detection Result
0: Microphone is not detected. (Default)
1: Microphone is detected.
Addr
10H
11H
Register Name
EQ Control 250Hz/100Hz
EQ Control 3.5kHz/1kHz
R/W
Default
D7
EQB3
EQD3
R/W
1
D6
EQB2
EQD2
R/W
0
Addr
12H
Register Name
EQ Control 10kHz
R/W
Default
D7
D6
0
0
RD
RD
0
0
EQA3-0: Select the boost level of 100Hz
EQB3-0: Select the boost level of 250Hz
EQC3-0: Select the boost level of 1kHz
EQD3-0: Select the boost level of 3.5kHz
EQE3-0: Select the boost level of 10kHz
See Table 14.
D5
EQB1
EQD1
R/W
0
D5
0
RD
0
D4
EQB0
EQD0
R/W
0
D4
0
RD
0
D3
EQA3
EQC3
R/W
1
D3
EQE3
R/W
1
D2
EQA2
EQC2
R/W
0
D2
EQE2
R/W
0
D1
EQA1
EQC1
R/W
0
D1
EQE1
R/W
0
D0
EQA0
EQC0
R/W
0
D0
EQE0
R/W
0
MS0301-E-00
- 45 -
2004/05