參數(shù)資料
型號: AK4648EC
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Stereo CODEC with MIC/HP/SPK-AMP
中文描述: 立體聲編解碼器麥克風(fēng)/惠普/胰腎聯(lián)合移植腺苷
文件頁數(shù): 111/119頁
文件大?。?/td> 1272K
代理商: AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 111 -
Mono signal output from Speaker-Amp
DACS bit
(Addr:02H, D5)
PMSPL/R bits
(Addr:00H, D7&D4)
MINS bit
(Addr:02H, D6)
SPLP pin
SPRP pin
Normal Output
SPPSN bit
(Addr:02H, D7)
Hi-Z
Hi-Z
SPLN pin
SPRN pin
Normal Output
Hi-Z
Hi-Z
HVDD/2
HVDD/2
(3)
(2)
(6)
(5)
PMMIN bit
(Addr:00H, D5)
X
0
Clocks can be stopped.
CLOCK
(4)
(7)
SPKMN bit
(Addr:21H, D6)
0
X
(1)
Example:
(3) Addr:02H, Data:60H
(2) Addr:00H, Data:E0H
(4) Addr:02H, Data:E0H
Mono Signal Output
(5) Addr:02H, Data:60H
(6) Addr:00H, Data:40H
(7) Addr:02H, Data:00H
(1) Addr:21H, Data:40H
Stereo SPK Mode
Figure 78. “MIN-Amp
Speaker-Amp” Output Sequence
<Example>
The clocks can be stopped when only MIN-Amp and Speaker-Amp are operating.
(1)
Set up speaker output mode
a.
Mono SPK Mode & High Power Mono SPK Mode: SPKMN bit = “0”
b.
Stereo SPK Mode: SPKMN bit = “1”
(2)
Power Up MIN-Amp and Speaker-Amp:
a.
Mono SPK Mode (When Lch Speaker-Amp, SPLP/SPLN pins are used.): PMMIN = PMSPL bits = “0”
“1”
b.
Stereo SPK Mode or High Power Mono SPK Mode: PMMIN = PMSPL = PMSPR bits = “0”
“1”
(3)
Disable the path of “DAC
SPK-Amp”: DACS bit = “0”
Enable the path of “MIN
SPK-Amp”: MINS bit = “0”
“1”
(4)
Exit the power-save-mode of Speaker-Amp: SPPSN bit = “0”
“1”
(5)
Enter the power-save-mode of Speaker-Amp: SPPSN bit = “1”
“0”
(6)
Power Down MIN-Amp and Speaker-Amp: PMMIN = PMSPK bits = “1”
“0”
(7)
Disable the path of “MIN
SPK-Amp”: MINS bit = “1”
“0”
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