AK4560A Datasheet, PDF (17/47 Pages) Asahi Kasei Microsystems – 16bit CODEC with ALC and MIC/HP/SPK-Amps

ASAHI KASEI
[AK4560A]
n Register Map
The following registers are reset at PD pin = “L”, then inhibits writing.
Addr
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
Register Name
Signal Select 1
Signal Select 2
Power Management Control
Mode Control
Timer Select
ALC Mode Control 1
ALC Mode Control 2
Operation Mode
Input PGA Control
Output PGA Control
D7
D6
D5
D4
0
0 ADMIX AOUT1
SPPS ALCS BEEPS LOUT
LOUTP SPKP HPP VCOM
0
0
VOL1 VOL0
FDTM1 FDTM0 ZTM1 ZTM0
0
0 ZELM LMAT1
0
REF6 REF5 REF4
0
0
STAT ND
0 IPGA6 IPGA5 IPGA4
0
0
0 OPGA4
Table 1. AK4560A Register Map
D3
D2
AOUT0 AIN
MOUT BEEPH
DAC ADC
MONO1 MONO0
WTM1 WTM0
LMAT0 FDATT
REF3 REF2
ALC2 FDIN
IPGA3 IPGA2
OPGA3 OPGA2
D1
HPF
HP
IPGA
DEM1
LTM1
RATT
REF1
FDOUT
IPGA1
OPGA1
D0
INT/EXT
VOL
MIC
DEM0
LTM0
LMTH
REF0
ALC1
IPGA0
OPGA0
Signal Select 1
Addr
Register Name
D7
D6
D5
D4
D3
D2
D1
D0
00H Signal Select 1
0
0 ADMIX AOUT1 AOUT0 AIN HPF INT/EXT
R/W
RD
R/W
RESET
0
0
0
0
1
0
0
0
INT/EXT: Select Internal / External MIC (Refer to Figure 12 and Figure 13.)
0: Internal MIC (RESET)
1: External MIC
INT/EXT bit and INT_EXT_DET pin are ORed.
When this function is controlled by INT_EXT_DET pin, INT_EXT bit is fixed to “0”. When this
function is controlled by INT/EXT bit, INT_EXT_DET pin is fixed to “L”.
HPF: Select HPF-Amplifier
0: Disable (RESET)
1: Enable
When HPF bit is “0”, HPF-Amp becomes a unity gain buffer.
When External MIC (INT/EXT bit = “1” or INT_EXT_DEC pin = “H”) is selected, HPF bit is
ignored.
AIN: Select input signal of ALC1 and change gain table of IPGA.
0: MIC (RESET)
1: LINE
AOUT1-0: Select input signal of LINEOUT or Analog Volume (OPGA)
ON/OFF of DAC is selected by AOUT0 bit and ON/OFF of Analog Through Mode is selected by
AOUT1.
00: Input signal is OFF. Common voltage is output.
01:DAC (RESET)
10: Analog Through Mode (Output signal of ALC1)
11: Output signal of DAC and Analog Through are mixed.
ADMIX: Output signal of ALC1 and input signal of SHT pin are mixed.
0: Disable (RESET)
1: Enable
MS0028-E-00
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2000/05