AK4642VN Datasheet, PDF (75/82 Pages) Asahi Kasei Microsystems – 16-Bit ΔΣ Stereo CODEC with MIC/HP/SPK-AMP

ASAHI KASEI
[AK4642]
„ εϐʔΧ͔ΒͷBEEP৴߸ग़ྗ
CLOCK
PMBP bit
(Addr:00H, D5)
PMSPK bit
(Addr:00H, D4)
DACS bit
(Addr:02H, D5)
BEEPS bit
(Addr:02H, D6)
SPPSN bit
(Addr:02H, D7)
SPP pin
SPN pin
Clocks can be stopped.
Example:
(1) Addr:00H, Data:70H
(1)
(5)
(2) Addr:02H, Data:60H
X
0
(2)
(6)
(3)
(4)
Hi-Z
Normal Output
Hi-Z
(3) Addr:02H, Data:E0H
BEEP Signal Output
(4) Addr:02H, Data:60H
(5) Addr:00H, Data:40H
Hi-Z
HVDD/2 Normal Output HVDD/2 Hi-Z
(6) Addr:02H, Data:00H
Figure 52. “BEPP-Amp Æ Speaker-Amp” Output Sequence
<खॱྫ>
“BEEP-Amp Æ SPK-Amp”ͷΈͷಈ࡞Ͱ͸ɺΫϩοΫ͸͞څڙΕ͍ͯΔඞཁ͸͋Γ·ͤΜɻ
(1) BEEP-AmpͼٴεϐʔΧͷύϫʔΞοϓ: PMBP = PMSPK bits = “0” → “1”
(2) DAC Æ SPK-AmpͷύεͷDisable: DACS bit = “0”
BEEP Æ SPK-AmpͷύεͷEnable: BEEPS bit = “0” → “1”
(3) εϐʔΧͷύϫʔηʔϒϞʔυͷղআ: SPPSN bit = “0” → “1”
(4) εϐʔΧͷύϫʔηʔϒϞʔυ΁Ҡߦ: SPPSN bit = “1” → “0”
(5) BEEP-AmpͼٴεϐʔΧͷύϫʔμ΢ϯ: PMBP = PMSPK bits = “1” → “0”
(6) BEEP Æ SPK-AmpͷύεͷDisable: BEEPS bit = “1” → “0”
MS0358-J-02
- 75 -
2005/04