ak4561 AKM Semiconductor, Inc., ak4561 Datasheet - Page 19

• Manufacturer Part Number: ak4561
• Description: 16bit Codec With Built-in Alc And Mic/hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
Power Management Control
Rev. 0.9
Addr
02H
PM0: MIC Block (Pre-Amp, EQ-Amp, HPF-Amp and MPWR) Power Control.
PM1: IPGA (ALC) Power Control
PM2: ADC Power Control
PM3: DAC Power Control
PM4: Common Voltage (VCOM, VCOM_H and MVCM) Power Control
PM5: Headphone Amplifier Power Control
PM6: MOUT Power Control
PM7: LINEOUT Power Control
Power Management Control
RESET
Register Name
0: OFF. Output pins are Hi-z.
1: ON. In case of EQ bit = “0”, EQ-Amp is powered-down. (RESET)
0: OFF
1: ON (RESET)
0: OFF. SDTO pin becomes “L”.
1: ON (RESET)
When ADC bit changes from “0” to “1”, initializing cycle (8224/fs=171.3ms@fs=48kHz) starts.
Digital data of ADC is generated after initializing cycle.
0: OFF
1: ON (RESET)
0: OFF
1: ON (RESET)
0: OFF. HPL/HPR pins become Hi-z and HVCM pin becomes “L” (AGND).
1: ON (RESET)
0: OFF. MOUT pin becomes Hi-z.
1: ON (RESET)
0: OFF. Output pins become Hi-z.
1: ON (RESET)
Analog volume (OPGA) are enabled when PM6 bit = “1” or PM5 bit = “1”.
These bits can be partially powered-down by ON/OFF (“1” / “0”). When PD pin goes
“L”, all the circuit in AK4561 can be powered-down regardless of these bits in the address.
When bit in this address goes all “0”, all the circuits in AK4561 can be also powered-
down. But contents of registers are kept.
When each block is operated, PM4 bit must go “1”. PM4 bit can write “0” when all bits in
this address can be “0”.
Except the case of PM6=PM5=PM3=PM2=PM1= “0” or PD pin = “L”, MCLK, BCLK
and LRCK should not be stopped.
PM7
D7
1
AKM CONFIDENTIAL
PM6
D6
1
- 19 -
PM5
D5
1
PM4
D4
1
PM3
D3
1
PM2
D2
1
PM1
D1
1
[AK4561]
2000/09
PM0
D0
1