ak4648 AKM Semiconductor, Inc., ak4648 Datasheet - Page 86

• Manufacturer Part Number: ak4648
• Description: Stereo Codec With Mic/hp/spk-amp
• Manufacturer: AKM Semiconductor, Inc.

MS0625-E-01
Addr
01H
PMPLL: PLL Power Management
MCKO: Master Clock Output Enable
PMHPC: Headphone-Amp’s Common Buffer Power Management
M/S: Master / Slave Mode Select
PMHPR: Headphone-Amp Rch Power Management
PMHPL: Headphone-Amp Lch Power Management
HPMTN: Headphone-Amp Mute Control
HPZ: Headphone-Amp Pull-down Control
0: EXT Mode and Power-Down (default)
1: PLL Mode and Power-up
0: Disable: MCKO pin = “L” (default)
1: Enable: Output frequency is selected by PS1-0 bits.
0: Power-down (default)
1: Power-up
0: Slave Mode (default)
1: Master Mode
0: Power-down (default)
1: Power-up
0: Power-down (default)
1: Power-up
0: Mute (default)
1: Normal operation
0: Shorted to GND (default)
1: Pulled-down by 200k Ω (typ.)
This bit is enabled when Lch or Rch of Headphone-amp is powered-down.
Register Name
Power Management 2
Default
R/W
HPZ
R/W
D7
0
HPMTN
R/W
D6
0
PMHPL
- 86 -
R/W
D5
0
PMHPR
R/W
D4
0
R/W
M/S
D3
0
PMHPC
R/W
D2
0
MCKO
R/W
D1
0
[AK4648]
2007/06
PMPLL
R/W
D0
0