參數(shù)資料
型號: AK4631
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: 16-Bit Mono CODEC with ALC & MIC/SPK-AMP
中文描述: 16位單聲道編解碼器ALC的
文件頁數(shù): 63/69頁
文件大?。?/td> 568K
代理商: AK4631
ASAHI KASEI
[AK4631]
MS0317-J-01
2004/11
- 63 -
BEEP
ALC2S bit
(Addr:02H, D5)
PMSPK bit
(Addr:00H, D4)
BEEPS bit
(Addr:02H, D6)
SPP pin
Normal Output
SPPS bit
(Addr:02H, D7)
Hi-Z
Hi-Z
SPN pin
Normal Output
Hi-Z
Hi-Z
SVDD/2
SVDD/2
(3)
0
0 or 1
(1)
ALC2 bit
(Addr:07H, D6)
(2)
(6)
(5)
PMBP bit
(Addr:00H, D2)
0 or 1
0
Clocks can be stopped.
CLOCK
(4)
(7)
Example:
(2) Addr:00H, Data:70H
(3) Addr:02H, Data:60H
(1) Addr:07H, Data:00H
(4) Addr:02H, Data:E0H
BEEP Signal Output
(5) Addr:02H, Data:60H
(6) Addr:00H, Data:40H
(7) Addr:02H, Data:00H
Figure 49. “BEPP-Amp
Speaker-Amp” Output Sequence
<
>
“BEEP-Amp
SPK-Amp”
Disable
(1) ALC2 Disable: ALC2 bit = “0”
(2) BEEP-Amp
(3) ALC2
SPK-Amp
BEEP
SPK-Amp
(4)
(4)
BEEP pin
ALC2
PMBP bit = PMSPK bit = “0”
“1”
Disable: ALC2S bit = “0”
Enable: BEEPS bit = “0”
“1”
: SPPS bit = “0”
“1”
BEEP-Amp
SPK-Amp
Enable
e.g. R=20k
, C=0.1
μ
F
:
5
τ
= 10ms
(5)
(6) BEEP-Amp
(7) BEEP
SPK-Amp
: SPPS bit = “1”
“0”
: PMBP bit = PMSPK bit = “1”
“0”
Disable: BEEPS bit = “1”
“0”
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