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): 85/119頁
文件大小: 1272K
代理商: AK4648EC
[AK4648]
MS0625-E-01
2007/06
- 85 -
Register Definitions
Addr
Register Name
00H
Power Management 1
R/W
Default
PMADL: MIC-Amp Lch and ADC Lch Power Management
0: Power down (default)
1: Power up
When the PMADL or PMADR bit is changed from “0” to “1”, the initialization cycle (1059/fs=24ms
@44.1kHz) starts. After initializing, digital data of the ADC is output.
PMDAC: DAC Power Management
0: Power down (default)
1: Power up
PMLO: Stereo Line Out Power Management
0: Power down (default)
1: Power up
PMSPL: Speaker-Amp Lch Power Management
0: Power down (default)
1: Power up
PMMIN: MIN Input Power Management
0: Power down (default)
1: Power up
PMMIN or PMAINL3 bit should be set to “1” for playback.
PMVCM: VCOM Power Management
0: Power down (default)
1: Power up
When any blocks are powered-up, the PMVCM bit must be set to “1”. PMVCM bit can be set to “0” only
when all power management bits of 00H, 01H, 02H, 10H, 20H and MCKO bits are “0”.
PMSPR: Speaker-Amp Rch Power Management
0: Power down (default)
1: Power up
Each block can be powered-down respectively by writing “0” to each bit of this address. When the PDN pin is “L”, all
blocks are powered-down regardless as setting of this address. In this case, register is initialized to the default value.
When all power management bits are “0” in the 00H, 01H, 02H, 10H and 20H addresses and MCKO bit is “0”, all
blocks are powered-down. The register values remain unchanged.
When neither ADC nor DAC are powered-up, external clocks may not be present. When ADC or DAC is powered-up,
external clocks must always be present.
D7
D6
D5
D4
D3
D2
D1
0
RD
0
D0
PMSPR
R/W
0
PMVCM
R/W
0
PMMIN
R/W
0
PMSPL
R/W
0
PMLO
R/W
0
PMDAC
R/W
0
PMADL
R/W
0
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