ak4651 AKM Semiconductor, Inc., ak4651 Datasheet - Page 22

• Manufacturer Part Number: ak4651
• Description: 16bit ?? Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Power management of each block is controlled via 26H and 60H register.
Note 37. When PLL1 pin = “H”(MCKI=3.6864MHz or 12MHz), AC-Link is powered-down by PR3 bit = “1”.
The ADC has a digital high pass filter for DC offset cancellation. The cut-off frequency of the HPF is 1.0Hz
(@fs=48kHz) and scales with sampling rate (fs).
MS0503-E-00
Mono Out
AC-Link
AUXIN
Line In
Power Management
Digital High Pass Filter
BEEP
VCM
PD: Power Down
PU: Power Up
PM*: depends on each PM bit.
VRA
ADC
DAC
XTL
PLL
SPK
MIC
HP
VRA bit = “1”: PLL Power Up
VRA bit = “0”: PLL Power Down
PMHPL/R
PR0 = “1”
PMAUX
PMBPM
PMMIC
PMSPK
PMLIN
PMMO
VRA
PD
PU
PU
PU
PU
PMHPL/R
PR1 = “1”
PMAUX
PMBPM
PMSPK
PMMIC
PMLIN
PMMO
VRA
PD
PU
PU
PU
PU
Table 6. Power Management
PR2 = “1”
VRA
PD
PD
PD
PD
PD
PD
PD
PU
PU
PU
PU
PU
- 22 -
PU(Note 37)
PR3 = “1”
PD
PD
PD
PU
PD
PD
PD
PD
PD
PD
PD
PD
PMHPL/R
PR4 = “1”
PMAUX
PMBPM
PMSPK
PMMIC
PMLIN
PMMO
VRA
PD
PD
PD
PU
PU
PMHPL/R
PR5 = “1”
PMAUX
PMBPM
PMSPK
PMMIC
PMLIN
PMMO
PD
PD
PD
PD
PD
PU
PR6 = “1”
PMAUX
PMBPM
[AK4651]
PMMIC
PMSPK
PMLIN
PMMO
VRA
2006/04
PD
PU
PU
PU
PU
PU