AK4631 Datasheet, PDF (46/69 Pages) Asahi Kasei Microsystems – 16-Bit Mono CODEC with ALC & MIC/SPK-AMP

ASAHI KASEI
[AK4631]
Addr
02H
Register Name
Signal Select 1
Default
D7
SPPS
0
D6
BEEPS
0
D5
ALC2S
0
D4
DACA
0
D3
DACM
0
D2
MPWR
0
D1
MICAD
0
D0
MGAIN0
1
MGAIN1-0: ϚΠΫΞϯϓͷήΠϯίϯτϩʔϧ(See Table 23)
MGAIN 1 bit ͸ 03H ͷ D6 bit Ͱ͢ɻ
MGAIN1 bit
0
0
1
1
MGAIN0 bit Input Gain
0
0dB
1
+20dB
0
+26dB
1
+32dB
Table 23. Input Gain
Default
MICAD: ADCʹೖྗ͞ΕΔALC1ग़ྗ৴߸ͷίϯτϩʔϧ
0: OFF (Default)
1: ON
“1”ͰALC1ͷग़ྗ৴߸ΛADCʹೖྗ͠·͢ɻ
MPWR: MICͷϚΠΫύϫʔͷग़ྗ
0: OFF (Default)
1: ON
PMMIC bit =“1”ͷ࣌ɺ͜ͷϏοτ͸༗ޮʹͳΓ·͢ɻ
DACM: DAC͔ΒϞϊϥϧΞϯϓʹೖྗ͞ΕΔ৴߸ͷίϯτϩʔϧ
0: OFF (Default)
1: ON
PMSPK bit=“1”ͷ࣌ɺ͜ͷϏοτ͸༗ޮʹͳΓ·͢ɻPMSPK bit=“0”ͷ࣌ɺMOUT pin͸Hi-ZʹͳΓ
·͢ɻ
DACA: DAC͔ΒϞϊϥϧϥΠϯΞϯϓʹೖྗ͞ΕΔ৴߸ͷίϯτϩʔϧ
0: OFF (Default)
1: ON
PMAO bit=“1”ͷ࣌ɺ͜ͷϏοτ͸༗ޮʹͳΓ·͢ɻPMAO bit=“0”ͷ࣌ɺAOUT pin͸AVSSʹͳΓ
·͢ɻ
ALC2S: εϐʔΧΞϯϓʹೖྗ͞ΕΔALC2ग़ྗ৴߸ͷίϯτϩʔϧ
0: OFF (Default)
1: ON
“1”ͰALC2ͷग़ྗ৴߸ΛεϐʔΧΞϯϓʹೖྗ͠·͢ɻ
BEEPS: BEEP pin͔ΒεϐʔΧΞϯϓʹೖྗ͞ΕΔ৴߸ͷίϯτϩʔϧ
0: OFF (Default)
1: ON
“1”ͰBEEPԻΛεϐʔΧΞϯϓʹೖྗ͠·͢ɻ
SPPS: εϐʔΧΞϯϓͷύϫʔηʔϒϞʔυ
0: Power Save Mode (Default)
1: Normal Operation
“0”ͰεϐʔΧΞϯϓ͸ύϫʔηʔϒϞʔυʹͳΓ·͢ɻ͜ͷ࣌ɺSPP pin͸Hi-ZɺSPN pin͸SVDD/2
Λग़ྗ͠·͢ɻPMSPK bit =“1”ͷ࣌ɺ͜ͷϏοτ͸༗ޮʹͳΓ·͢ɻୠ͠ɺPDN pin=“L”௚ޙ͸
PMSPK bit =“0”ͱͳ͍ͬͯΔͨΊɺεϐʔΧΞϯϓ͸ύϫʔμ΢ϯঢ়ଶͰ͢ɻ
MS0317-J-01
- 46 -
2004/11