AK4532 Datasheet, PDF (10/17 Pages) Asahi Kasei Microsystems – Internet/Network/General Purpose Multimedia Audio CODEC

ASAHI KASEI
OPERATION OVERVIW
[AK4532]
1. CONTROL REGISTER MAP
Addr Register Name
D7
D6
00 Master Volume Lch
MUTE
01 Master Volume Rch
MUTE
02 Voice Volume Lch
MUTE
03 Voice Volume Rch
MUTE
08 Line Volume Lch
MUTE
09 Line Volume Rch
MUTE
0A AUX Volume Lch
MUTE
0B AUX Volume Rch
MUTE
10 Output Mixer SW 1
11 Output Mixer SW 2
12 Lch Input Mixer SW 1
13 Rch Input Mixer SW 1
14 Lch Input Mixer SW 2
15 Rch Input Mixer SW 2
16 Reset and Power Down
19 MIC Amp Gain
Note: ATT* is data bits for the attenuation level.
GAI* is data bits for the gain level.
D5
AUXL
D4
ATT4
ATT4
GAI4
GAI4
GAI4
GAI4
GAI4
GAI4
LineL
AUXR
LineL
LineL
AUXL
AUXL
D3
ATT3
ATT3
GAI3
GAI3
GAI3
GAI3
GAI3
GAI3
LineR
VoiceL
LineR
LineR
AUXR
AUXR
D2
ATT2
ATT2
GAI2
GAI2
GAI2
GAI2
GAI2
GAI2
VoiceR
VoiceL
VoiceR
D1
ATT1
ATT1
GAI1
GAI1
GAI1
GAI1
GAI1
GAI1
PD
D0
ATT0
ATT0
GAI0
GAI0
GAI0
GAI0
GAI0
GAI0
MIC
RST
MGAIN
IMPORTANT: There is the compatibility between the AK4531 and AK4532. But the input mixer
functions of those device has some different implication in the application, receptively.
And the other address of control register except those described in the above table and “1A” are
“do not care”. Address “1A” for testing shall be strictly prohibited to access.
Be ware that the three MSB address bits(A7, A6, A5) are ignored by AK4532. Writing to address
“20” register will update the address “00” register for instance.
2. WRITE Timing of Control Register
CS
CCLK
CDATA
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4 D3 D2 D1 D0
A7-A0: Address
D7-D0: Control Data
3. Control Register Definitions
Addr Register Name
D7
D6 D5 D4
D3
D2
D1
D0
00
Master Volume Lch MUTE
ATT4 ATT3 ATT2 ATT1 ATT0
01
Master Volume Rch MUTE
ATT4 ATT3 ATT2 ATT1 ATT0
MUTE
ATT4:0
Initial
1:
MUTE
0:
No MUTE
32 levels with 2 dB step
00000: 0dB
11111: -62 dB
“0000 0000”(No MUTE & 0dB)
0178-E-01
10
1999/06