ak4665a AKM Semiconductor, Inc., ak4665a Datasheet - Page 42

• Manufacturer Part Number: ak4665a
• Description: 20-bit Stereo Codec With Mic/hp-amp
• Manufacturer: AKM Semiconductor, Inc.

ASAHI KASEI
MS0440-E-01
Addr
00H
Register Definitions
PMVCM: Power Management for VCOM Block
PMADC: Power Management for MIC-Amp and ADC Blocks
PMDAC: Power Management for DAC Block
PMHPL: Power Management for Lch of Headphone Amp
PMHPR: Power Management for Rch of Headphone Amp
PMLO: Power Management for Stereo Lineout
PMCP: Power Management for Charge Pump Circuit
All blocks can be powered-down by setting PDN pin to “L” regardless of register values setting. In this case, all
control register values are initialized.
When PMVCM, PMADC, PMDAC, PMHPL, PMHPR, PMLO and PMCP bits are “0”, all blocks are
powered-down. The register values remain unchanged. Power supply current is 100µA(typ) in this case. For fully
shut down (typ. 1µA), PDN pin should be “L”.
Register Name
Power Management
Default
0: Power OFF (Default)
1: Power ON
0: Power OFF (Default)
1: Power ON
MCLK should be present when PMADC bit is “1”.
0: Power OFF (Default)
1: Power ON
When PMDAC bit is changed from “0” to “1”, DAC is powered-up to the current register values (ATT
value, sampling rate, etc).
0: Power OFF (Default). HPL pin becomes AVSS (0V).
1: Power ON
0: Power OFF (Default). HPR pin becomes AVSS (0V).
1: Power ON
0: Power OFF (Default). LOUT and ROUT pins become Hi-Z.
1: Power ON
0: Power OFF (Default)
1: Power ON
PMCP
D7
0
D6
0
0
PMLO
- 42 -
D5
0
PMHPR
D4
0
PMHPL
D3
0
PMDAC
D2
0
PMADC
D1
0
[AK4665A]
PMVCM
2006/05
D0
0